redhat-list Digest, Vol 19, Issue 21
Stephen Akandwanaho
rootcisco at gmail.com
Fri Sep 23 09:13:35 UTC 2005
and now it gives a warning that "Please enter a valid installation
path." and yet i put a valid installation path so i really don't know
what's the problem.
On 9/23/05, Stephen Akandwanaho <rootcisco at gmail.com> wrote:
> Hi all !
> THe Installation is now becoming a little bit ok but after putting
> the falsh installer ,it says "please enter the installation path of
> the mozilla,Netscape or opera browser(i.e /usr/lib/mozilla) however i
> put /usr/lib/mozilla/plug-ins/ but all is in vain
>
> So i will be glad for your help
>
> On 9/22/05, redhat-list-request at redhat.com
> <redhat-list-request at redhat.com> wrote:
> > Send redhat-list mailing list submissions to
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> >
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> > than "Re: Contents of redhat-list digest..."
> >
> >
> > Today's Topics:
> >
> > 1. Knock Knock ,,,May I come in (ragak raj)
> > 2. RE: Knock Knock ,,,May I come in (Jay Berryman)
> > 3. Kerberos Authentication Question (Jay Berryman)
> > 4. Re: pr and lpr combination command (Alfred Hovdestad)
> > 5. RE: Time and zone setting in RHEL3 (Bordalo Fred)
> > 6. RE: LVM Question (Allen, Jack)
> > 7. RE: LVM Question (Smith, Albert)
> > 8. RE: LVM Question (Allen, Jack)
> > 9. AW: building cluster (funtom)
> > 10. Re: LVM packets for Red Hat AS 2.1 (Magnus Andersen)
> > 11. Re: AW: building cluster (Yasushi Okubo)
> > 12. Re: sudo - superuser setup (Anze Vidmar)
> > 13. Tape drive support again (Allen, Jack)
> > 14. Re: Tape drive support again (Greg Golin)
> > 15. RE: Tape drive support again (Dege, Robert C.)
> > 16. RE: Tape drive support again (Geoff Rainey (DSL AK))
> > 17. RE: Tape drive support again (Allen, Jack)
> > 18. swap device io (Tolga Evren)
> > 19. page cache , process map issues (Tolga Evren)
> > 20. Errata and update releases (Clark, Patricia)
> > 21. RE: Errata and update releases (Shaw, Marco)
> > 22. Re: VNC help (up2date name) (Mike Wooding)
> > 23. Server Crash (Jai Rangi)
> > 24. Re: Server Crash (Greg Golin)
> > 25. Re: Server Crash (Andrew Bacchi)
> > 26. RE: Server Crash (Smith, Albert)
> >
> >
> > ----------------------------------------------------------------------
> >
> > Message: 1
> > Date: 21 Sep 2005 17:03:35 -0000
> > From: "ragak raj" <ragak at rediffmail.com>
> > Subject: Knock Knock ,,,May I come in
> > To: redhat-list at redhat.com
> > Message-ID: <20050921170335.18267.qmail at webmail53.rediffmail.com>
> > Content-Type: text/plain; charset=iso-8859-1
> >
> >
> > Hey Hi All..
> > Am Ragak.Am from Loyola College India..
> > I am a complete novice in the world of LINUX..
> > I have got this job of beig an assistant to a system adminstrator..
> > And the company is gonna run a web centric ERP application across a VPN.
> > And we have tis Linux platform and TOMCAT server wit Oracle as a back
> end,,
> > Hmm a little scared when i realise that I gotta work with the command
> prompt
> > on LINUX serevr..
> >
> > I realy wanna try out on some live Cds before actually have my hands on
> the
> > server..
> >
> > Can anyone tell me any source of geting Live cds..
> > regards
> > Ragak
> >
> >
> >
> > ------------------------------
> >
> > Message: 2
> > Date: Wed, 21 Sep 2005 12:08:00 -0500
> > From: Jay Berryman <jay.berryman at sitel.com>
> > Subject: RE: Knock Knock ,,,May I come in
> > To: ragak raj <ragak at rediffmail.com>, General Red Hat Linux discussion
> > list <redhat-list at redhat.com>
> > Message-ID:
> > <BAEDCDF29A58CF4D8E1A94B670EF428F078D2073 at omaha-mail-2.sitel.net>
> > Content-Type: text/plain; charset="iso-8859-1"
> >
> > >-----Original Message-----
> > >From: redhat-list-bounces at redhat.com
> > [mailto:redhat-list->bounces at redhat.com] On Behalf Of ragak raj
> > >Sent: Wednesday, September 21, 2005 12:04 PM
> > >To: redhat-list at redhat.com
> > >Subject: Knock Knock ,,,May I come in
> > >
> > >
> > >Hey Hi All..
> > >Am Ragak.Am from Loyola College India..
> > >I am a complete novice in the world of LINUX..
> > >I have got this job of beig an assistant to a system adminstrator..
> > >And the company is gonna run a web centric ERP application across a VPN.
> > >And we have tis Linux platform and TOMCAT server wit Oracle as a back
> > end,,
> > >Hmm a little scared when i realise that I gotta work with the command
> > >prompt on LINUX serevr..
> > >
> > >I realy wanna try out on some live Cds before actually have my hands on
> > the
> > >server..
> > >
> > >Can anyone tell me any source of geting Live cds..
> > >regards
> > >Ragak
> >
> >
> > Here is a couple of links for you:
> >
> > http://www.frozentech.com/content/livecd.php
> > http://distrowatch.com/dwres.php?resource=cd
> >
> > Jay Berryman, RHCT, RHCE
> > Systems Engineer
> > Phone: (402)-963-6347
> > Cell: (402)-598-1737
> > E-Mail: Jay.Berryman at sitel.com
> >
> >
> > This message and any attachments are intended only for the use of the
> > addressee and may contain information that is privileged and
> confidential.
> > If the reader of the message is not the intended recipient, or the
> > authorized agent of the intended recipient, you are hereby notified that
> > any
> > dissemination of this communication is strictly prohibited. If you have
> > received this communication in error, please notify SITEL immediately by
> > telephone at 402.963.6001 and delete the message and any attachments from
> > your system. Thank you for your cooperation.
> >
> > --
> > redhat-list mailing list
> > unsubscribe mailto:redhat-list-request at redhat.com?subject=unsubscribe
> > https://www.redhat.com/mailman/listinfo/redhat-list
> >
> >
> >
> > ------------------------------
> >
> > Message: 3
> > Date: Wed, 21 Sep 2005 12:09:15 -0500
> > From: Jay Berryman <jay.berryman at sitel.com>
> > Subject: Kerberos Authentication Question
> > To: General Red Hat Linux discussion list <redhat-list at redhat.com>
> > Message-ID:
> > <BAEDCDF29A58CF4D8E1A94B670EF428F078D2076 at omaha-mail-2.sitel.net>
> > Content-Type: text/plain
> >
> > Hello everyone. Has anyone tried to use Kerberos to authenticate against
> > multiple Active Directory Domains? Getting one to work is no problem,
> but
> > I'm having issues in trying to get more then one to work. Any help would
> > be
> > greatly appreciated. Thanks.
> >
> >
> >
> > Jay Berryman, RHCT, RHCE
> >
> > Systems Engineer
> >
> > Phone: (402)-963-6347
> >
> > Cell: (402)-598-1737
> >
> > E-Mail: Jay.Berryman at sitel.com <mailto:Jay.Berryman at sitel.com>
> >
> >
> >
> > This message and any attachments are intended only for the use of the
> > addressee and may contain information that is privileged and
> confidential.
> > If the reader of the message is not the intended recipient, or the
> > authorized agent of the intended recipient, you are hereby notified that
> > any
> > dissemination of this communication is strictly prohibited. If you have
> > received this communication in error, please notify SITEL immediately by
> > telephone at 402.963.6001 and delete the message and any attachments from
> > your system. Thank you for your cooperation.
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > ------------------------------
> >
> > Message: 4
> > Date: Wed, 21 Sep 2005 11:36:52 -0600
> > From: Alfred Hovdestad <alfred.hovdestad at usask.ca>
> > Subject: Re: pr and lpr combination command
> > To: General Red Hat Linux discussion list <redhat-list at redhat.com>
> > Message-ID: <43319A34.4090901 at usask.ca>
> > Content-Type: text/plain; format=flowed; charset=us-ascii
> >
> > man lpr
> >
> >
> > -P destination
> > Prints files to the named printer.
> >
> >
> > Alfred
> >
> >
> > Han Tin wrote:
> > > Hi Alfred,
> > > This is the shell scripts, I used in HP-UX.
> > >
> > > #!/usr/bin/ksh
> > > # file : proglist
> > > # desc : pr formatting and hp laser portrait condense code
> > > # by : Han Tin
> > > # usage: proglist <file1> ... <filen> | lp -d <printer>
> > > # usage: <program> | proglist | lp -d <printer>
> > > # ex. : proglist `pwd`/file1 `pwd`/file2 | lp -d mis_laser
> > > # : ls -al | proglist | lp -d mis_laser
> > > #---------------------------------------------------------------------
> > > echo "^[&k2S^[&l5C\c"
> > > (
> > > if [ "$#" -eq 0 ]
> > > then
> > > cat | pr -n -o20 -w100 -l98 -f $1
> > > else
> > > pr -n -o20 -w100 -l98 -f "$@"
> > > fi
> > > ) | crlf
> > >
> > >
> > > usage:
> > > proglist <file1> ... <filen> | lp -d <printer>
> > >
> > >
> > > According to yours, I create a file called prt.
> > >
> > > #!/bin/sh
> > > # prt
> > > pr -n -o20 -w100 -l98 -f $1 | lpr -d picshp
> > >
> > > It gave me the following message. What need to be done. Your help is
> > > appreciated in advance.
> > >
> > > $ prt prt|lp -dpicshp
> > > Warning - Cannot open file 'picshp', No such file or directory
> > > picshp: nothing to print
> > >
> >
> >
> >
> > ------------------------------
> >
> > Message: 5
> > Date: Wed, 21 Sep 2005 14:34:29 -0400
> > From: "Bordalo Fred" <Fred.Bordalo at comverse.com>
> > Subject: RE: Time and zone setting in RHEL3
> > To: "General Red Hat Linux discussion list" <redhat-list at redhat.com>
> > Message-ID:
> > <ABC0990CBDD8584681334C6C3EDF6A0C1D4763 at us-wkf-mail2.comverse.com>
> > Content-Type: text/plain; charset="us-ascii"
> >
> > Hi Jeff,
> >
> > Yes, cp the file. Also, make sure the permissions is 644 so other users
> > can access the file. In our environment, umask is set to 750 and this
> > cause cp to create it with 640.
> >
> > Sorry, I meant that soft link does NOT work in my previous reply,
> > Fred
> >
> >
> > -----Original Message-----
> > From: redhat-list-bounces at redhat.com
> > [mailto:redhat-list-bounces at redhat.com] On Behalf Of Jeff
> > Sent: Wednesday, September 21, 2005 11:54 AM
> > To: 'General Red Hat Linux discussion list'
> > Subject: RE: Time and zone setting in RHEL3
> >
> > > -----Original Message-----
> > > From: redhat-list-bounces at redhat.com
> > > [mailto:redhat-list-bounces at redhat.com] On Behalf Of Bordalo Fred
> > > Sent: Wednesday, September 21, 2005 11:41
> > > To: General Red Hat Linux discussion list
> > > Subject: RE: Time and zone setting in RHEL3
> > >
> > >
> > > Hi,
> > >
> > > I just went through this and I found that soft link does work
> > > - although in your case it because you use UTC. I recommend coping the
> >
> > > file zone file instead of a soft link. This will work for local time
> > > configuration.
> >
> > Fred,
> >
> > What do you mean exactly here?
> >
> > #cp /usr/share/timezone/GMT /etc/localtime
> >
> >
> > >
> > > The /etc/sysconfig/clock is read during boot by /etc/rc.sysinit to
> > > adjust the time. In your case, it will simply read the time without
> > > adjusting it.
> > >
> > > Fred
> > >
> > > -----Original Message-----
> > > From: redhat-list-bounces at redhat.com
> > > [mailto:redhat-list-bounces at redhat.com] On Behalf Of Jeff
> > > Sent: Wednesday, September 21, 2005 11:13 AM
> > > To: redhat-list at redhat.com
> > > Subject: Time and zone setting in RHEL3
> > >
> > > Ok, I know this should be dead simple but I just can't get the darn
> > > timezone and time correct on a new RHEL3 server i've just installed.
> > >
> > > I want it set for timezone GMT and the current GMT time.
> > >
> > > I can set the time no problem and i've manually edited the
> > > /etc/sysconfig/clock to have
> > >
> > > ZONE="GMT"
> > > UTC=true
> > > ARC=false
> > >
> > > I want both the system clock and hwclock to use UTC (or GMT) as the
> > > zone.
> > >
> > > using redhat-config-time doesn't give me an option for GMT or UTC.
> > >
> > > This is driving me nuts!
> > >
> > > so I moved /etc/localtime to /etc/localtime~ then set up a softlink to
> > >
> > > ln -s /usr/share/zoneinfo/GMT /etc/localtime
> > >
> > > then rebooted and everything once again appears correct in the world
> > > again. The question now is, is this the correct way to fix the
> > > problem? Will this create any more problems? why isn't there a tool
> > > that will do this? I mean what's the point of redhat-config-date if it
> >
> > > doesn't allow you to set things the way you want? GMT isn't even an
> > > available timezone in that tool.
> > >
> > > does /etc/sysconfig/clock do anything anymore?
> > >
> > > Thanks,
> > >
> > > Jeff
> > >
> > >
> > > --
> > > redhat-list mailing list
> > > unsubscribe mailto:redhat-list-request at redhat.com?subject=unsubscribe
> > > https://www.redhat.com/mailman/listinfo/redhat-list
> > > ______________________________________________________________________
> > > This email message has been scanned by PineApp Mail-Secure and has
> > > been found clean.
> > >
> > >
> > > --
> > > redhat-list mailing list
> > > unsubscribe mailto:redhat-list-request at redhat.com?subject=unsubscribe
> > > https://www.redhat.com/mailman/listinfo/redhat-list
> > >
> >
> >
> > --
> > redhat-list mailing list
> > unsubscribe mailto:redhat-list-request at redhat.com?subject=unsubscribe
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> >
> >
> >
> >
> > ------------------------------
> >
> > Message: 6
> > Date: Wed, 21 Sep 2005 14:35:44 -0400
> > From: "Allen, Jack" <Jack.Allen at McKesson.com>
> > Subject: RE: LVM Question
> > To: "'General Red Hat Linux discussion list'" <redhat-list at redhat.com>
> > Message-ID:
> > <C28DB247D333BC47BBAAFDC914DE39010261F5DF at atlexc07ntms.mckesson.com>
> > Content-Type: text/plain
> >
> >
> >
> > -----Original Message-----
> > From: Smith, Albert [mailto:Albert.Smith at genexservices.com]
> > Sent: Wednesday, September 21, 2005 11:04 AM
> > To: General Red Hat Linux discussion list
> > Subject: RE: LVM Question
> >
> >
> > > -----Original Message-----
> > > From: redhat-list-bounces at redhat.com
> > > [mailto:redhat-list-bounces at redhat.com] On Behalf Of Allen, Jack
> > > Sent: Tuesday, September 20, 2005 6:18 PM
> > > To: 'Redhat-list at redhat.com'
> > > Subject: LVM Question
> > >
> > > I have a system connected to a SAN via Fibre Channel
> > > interface.
> > > The system sees 3 disk sdb, sdc and sdd. I put them in a
> > > volume group and then allocated some logical volumes. If I
> > > use the logical volume to read and write to directly for my
> > > application, if there is an error on a write, I assume the
> > > write system call will return an error. Or does the write
> > > give a good return value after putting the data in some
> > > system buffer to be written later? Then is the write of the
> > > system buffer fails later, my program would not know.
> > >
> > > Thanks:
> > > Jack Allen
> > >
> > > --
> > > redhat-list mailing list
> > > unsubscribe mailto:redhat-list-request at redhat.com?subject=unsubscribe
> > > https://www.redhat.com/mailman/listinfo/redhat-list
> > >
> > >
> >
> > It sounds like you want to write directly to the raw lvol and not to a
> > cooked filesystem. Is this correct?. If that's the case I would make
> > sure you have async. I/O (AIO) enabled and installed this is usually
> > managed by the kernel. If there is a write failure to the raw lvol a
> > message should be dumped to the console and to your messages file also.
> >
> >
> > Albert Smith
> > Sr. Unix Systems Administrator
> > HPCSA, RHCT
> > Genex Services
> > 440 E. Swedesford Rd.
> > Wayne, PA 19087
> > albert.smith at genexservices.com
> > (610) 964-5154
> >
> > ================
> > Correct I want to read and write directly to the logical volume, there
> will
> > be NO file system. I need the application to block on the write until the
> > data is truly on the disk. Therefore I don't see how async I/O will help.
> I
> > had opened the logical volume, which is a block device as
> > /dev/vg00/data.vol
> > using the O_SYNC option. The application was running and not reporting
> any
> > errors, but the messages file had lots of SCSI errors. When the data was
> > checked some things had not got written to the disk, the SCSI errors. But
> > again the return value form the write system call indicated there were no
> > problems.
> >
> > Thanks:
> > Jack Allen
> >
> >
> >
> > ------------------------------
> >
> > Message: 7
> > Date: Wed, 21 Sep 2005 14:54:28 -0400
> > From: "Smith, Albert" <Albert.Smith at genexservices.com>
> > Subject: RE: LVM Question
> > To: "General Red Hat Linux discussion list" <redhat-list at redhat.com>
> > Message-ID:
> > <462170B0EBFCFE4AB1E54ED8C269A5BC02F7AFCC at PHLVEXCH01.genexservices.com>
> >
> > Content-Type: text/plain; charset=us-ascii
> >
> > > -----Original Message-----
> > > From: redhat-list-bounces at redhat.com
> > > [mailto:redhat-list-bounces at redhat.com] On Behalf Of Allen, Jack
> > > Sent: Wednesday, September 21, 2005 2:36 PM
> > > To: 'General Red Hat Linux discussion list'
> > > Subject: RE: LVM Question
> > >
> > >
> > >
> > > -----Original Message-----
> > > From: Smith, Albert [mailto:Albert.Smith at genexservices.com]
> > > Sent: Wednesday, September 21, 2005 11:04 AM
> > > To: General Red Hat Linux discussion list
> > > Subject: RE: LVM Question
> > >
> > >
> > > > -----Original Message-----
> > > > From: redhat-list-bounces at redhat.com
> > > > [mailto:redhat-list-bounces at redhat.com] On Behalf Of Allen, Jack
> > > > Sent: Tuesday, September 20, 2005 6:18 PM
> > > > To: 'Redhat-list at redhat.com'
> > > > Subject: LVM Question
> > > >
> > > > I have a system connected to a SAN via Fibre Channel
> > > > interface.
> > > > The system sees 3 disk sdb, sdc and sdd. I put them in a
> > > > volume group and then allocated some logical volumes. If I
> > > > use the logical volume to read and write to directly for my
> > > > application, if there is an error on a write, I assume the
> > > > write system call will return an error. Or does the write
> > > > give a good return value after putting the data in some
> > > > system buffer to be written later? Then is the write of the
> > > > system buffer fails later, my program would not know.
> > > >
> > > > Thanks:
> > > > Jack Allen
> > > >
> > > > --
> > > > redhat-list mailing list
> > > > unsubscribe
> > > mailto:redhat-list-request at redhat.com?subject=unsubscribe
> > > > https://www.redhat.com/mailman/listinfo/redhat-list
> > > >
> > > >
> > >
> > > It sounds like you want to write directly to the raw lvol and not to a
> > > cooked filesystem. Is this correct?. If that's the case I would make
> > > sure you have async. I/O (AIO) enabled and installed this is usually
> > > managed by the kernel. If there is a write failure to the raw lvol a
> > > message should be dumped to the console and to your messages
> > > file also.
> > >
> > >
> > > Albert Smith
> > > Sr. Unix Systems Administrator
> > > HPCSA, RHCT
> > > Genex Services
> > > 440 E. Swedesford Rd.
> > > Wayne, PA 19087
> > > albert.smith at genexservices.com
> > > (610) 964-5154
> > >
> > > ================
> > > Correct I want to read and write directly to the logical
> > > volume, there will
> > > be NO file system. I need the application to block on the
> > > write until the
> > > data is truly on the disk. Therefore I don't see how async
> > > I/O will help. I
> > > had opened the logical volume, which is a block device as
> > > /dev/vg00/data.vol
> > > using the O_SYNC option. The application was running and not
> > > reporting any
> > > errors, but the messages file had lots of SCSI errors. When
> > > the data was
> > > checked some things had not got written to the disk, the SCSI
> > > errors. But
> > > again the return value form the write system call indicated
> > > there were no
> > > problems.
> > >
> > > Thanks:
> > > Jack Allen
> > >
> > > --
> > > redhat-list mailing list
> > > unsubscribe mailto:redhat-list-request at redhat.com?subject=unsubscribe
> > > https://www.redhat.com/mailman/listinfo/redhat-list
> > >
> > >
> >
> > Most applications that write directly to a raw filesystem (Oracle,
> > Sybase, MySQL) require AIO in order to operate efficently. What AIO does
> > is it reduces the need for IO Concurrency (reads/writes and seeks) which
> > most database applications require when writing to a raw filesystem and
> > it allows the lvol to run and accept at higher throughputs.
> >
> > One reason you might be having SCSI related error's is that the Database
> > or application you are using as AIO enabled but the system may not be
> > running it.
> > However if AIO is configuraed and running via the kernel and you
> > continue to get SCSI errors it is most likely indicating a hardware
> > failure either fibre/scsi card or a problem with your lun configuration
> > on your SAN.
> >
> > Albert Smith
> > Sr. Unix Systems Administrator
> > HPCSA, RHCT
> > Genex Services
> > 440 E. Swedesford Rd.
> > Wayne, PA 19087
> > albert.smith at genexservices.com
> > (610) 964-5154
> >
> >
> >
> >
> >
> > ------------------------------
> >
> > Message: 8
> > Date: Wed, 21 Sep 2005 16:01:10 -0400
> > From: "Allen, Jack" <Jack.Allen at McKesson.com>
> > Subject: RE: LVM Question
> > To: "'General Red Hat Linux discussion list'" <redhat-list at redhat.com>
> > Message-ID:
> > <C28DB247D333BC47BBAAFDC914DE39010261F5E2 at atlexc07ntms.mckesson.com>
> > Content-Type: text/plain
> >
> >
> >
> > -----Original Message-----
> > From: Smith, Albert [mailto:Albert.Smith at genexservices.com]
> > Sent: Wednesday, September 21, 2005 2:54 PM
> > To: General Red Hat Linux discussion list
> > Subject: RE: LVM Question
> >
> >
> > > -----Original Message-----
> > > From: redhat-list-bounces at redhat.com
> > > [mailto:redhat-list-bounces at redhat.com] On Behalf Of Allen, Jack
> > > Sent: Wednesday, September 21, 2005 2:36 PM
> > > To: 'General Red Hat Linux discussion list'
> > > Subject: RE: LVM Question
> > >
> > >
> > >
> > > -----Original Message-----
> > > From: Smith, Albert [mailto:Albert.Smith at genexservices.com]
> > > Sent: Wednesday, September 21, 2005 11:04 AM
> > > To: General Red Hat Linux discussion list
> > > Subject: RE: LVM Question
> > >
> > >
> > > > -----Original Message-----
> > > > From: redhat-list-bounces at redhat.com
> > > > [mailto:redhat-list-bounces at redhat.com] On Behalf Of Allen, Jack
> > > > Sent: Tuesday, September 20, 2005 6:18 PM
> > > > To: 'Redhat-list at redhat.com'
> > > > Subject: LVM Question
> > > >
> > > > I have a system connected to a SAN via Fibre Channel
> > > > interface.
> > > > The system sees 3 disk sdb, sdc and sdd. I put them in a
> > > > volume group and then allocated some logical volumes. If I
> > > > use the logical volume to read and write to directly for my
> > > > application, if there is an error on a write, I assume the
> > > > write system call will return an error. Or does the write
> > > > give a good return value after putting the data in some
> > > > system buffer to be written later? Then is the write of the
> > > > system buffer fails later, my program would not know.
> > > >
> > > > Thanks:
> > > > Jack Allen
> > > >
> > > > --
> > > > redhat-list mailing list
> > > > unsubscribe
> > > mailto:redhat-list-request at redhat.com?subject=unsubscribe
> > > > https://www.redhat.com/mailman/listinfo/redhat-list
> > > >
> > > >
> > >
> > > It sounds like you want to write directly to the raw lvol and not to a
> > > cooked filesystem. Is this correct?. If that's the case I would make
> > > sure you have async. I/O (AIO) enabled and installed this is usually
> > > managed by the kernel. If there is a write failure to the raw lvol a
> > > message should be dumped to the console and to your messages
> > > file also.
> > >
> > >
> > > Albert Smith
> > > Sr. Unix Systems Administrator
> > > HPCSA, RHCT
> > > Genex Services
> > > 440 E. Swedesford Rd.
> > > Wayne, PA 19087
> > > albert.smith at genexservices.com
> > > (610) 964-5154
> > >
> > > ================
> > > Correct I want to read and write directly to the logical
> > > volume, there will
> > > be NO file system. I need the application to block on the
> > > write until the
> > > data is truly on the disk. Therefore I don't see how async
> > > I/O will help. I
> > > had opened the logical volume, which is a block device as
> > > /dev/vg00/data.vol
> > > using the O_SYNC option. The application was running and not
> > > reporting any
> > > errors, but the messages file had lots of SCSI errors. When
> > > the data was
> > > checked some things had not got written to the disk, the SCSI
> > > errors. But
> > > again the return value form the write system call indicated
> > > there were no
> > > problems.
> > >
> > > Thanks:
> > > Jack Allen
> > >
> > > --
> > > redhat-list mailing list
> > > unsubscribe mailto:redhat-list-request at redhat.com?subject=unsubscribe
> > > https://www.redhat.com/mailman/listinfo/redhat-list
> > >
> > >
> >
> > Most applications that write directly to a raw filesystem (Oracle,
> > Sybase, MySQL) require AIO in order to operate efficently. What AIO does
> > is it reduces the need for IO Concurrency (reads/writes and seeks) which
> > most database applications require when writing to a raw filesystem and
> > it allows the lvol to run and accept at higher throughputs.
> >
> > [Jack Allen] AIO allows you to do writes and not wait on them and later
> get
> > an indication of the success or failure. My application is written where
> it
> > wants to know that one write has completed before it allows other writes
> to
> > take place.
> >
> >
> > One reason you might be having SCSI related error's is that the Database
> > or application you are using as AIO enabled but the system may not be
> > running it.
> > [Jack Allen] I know the application is not using AIO.
> >
> >
> > However if AIO is configuraed and running via the kernel and you
> > continue to get SCSI errors it is most likely indicating a hardware
> > failure either fibre/scsi card or a problem with your lun configuration
> > on your SAN.
> > [Jack Allen] I know the SCSI errors war due to hardware. But the
> > application
> > did not get any error indication because the writes it does are copied to
> > system cache buffers and then written at a later time. Therefore the
> > application thinks every thing is OK, but yet the data did not really get
> > written to the disk. The logical volume was opened with the O_SYNC
> option,
> > but from what I am find out does not work the same on a block device as
> it
> > does on a regular file. Looks like I will have to add a call for
> fsync(fd)
> > after each write to make sure it gets to the disk.
> >
> >
> > Albert Smith
> > Sr. Unix Systems Administrator
> > HPCSA, RHCT
> > Genex Services
> > 440 E. Swedesford Rd.
> > Wayne, PA 19087
> > albert.smith at genexservices.com
> > (610) 964-5154
> >
> >
> >
> > ------------------------------
> >
> > Message: 9
> > Date: Wed, 21 Sep 2005 22:02:41 +0200
> > From: "funtom" <funtom at bluewin.ch>
> > Subject: AW: building cluster
> > To: <greg.golin at gmail.com>, "'General Red Hat Linux discussion list'"
> > <redhat-list at redhat.com>
> > Message-ID: <430D7276005B1DDF at mail16.bluewin.ch> (added by
> > postmaster at bluewin.ch)
> > Content-Type: text/plain; charset="iso-8859-1"
> >
> > Hi,
> >
> > It's a good idea to use Redhat Cluster Suite with RHEL4.
> > Have a look here:
> >
> > http://www.redhat.com/docs/manuals/csgfs/browse/rh-cs-en/
> >
> > regards,
> > Thomas
> >
> > -----Urspr�ngliche Nachricht-----
> > Von: redhat-list-bounces at redhat.com
> [mailto:redhat-list-bounces at redhat.com]
> > Im Auftrag von Greg Golin
> > Gesendet: Montag, 12. September 2005 09:27
> > An: General Red Hat Linux discussion list
> > Betreff: Re: building cluster
> >
> > www.linux-ha.org is another option. rh cluster suite is not trivial.
> >
> > good luck.
> > gg
> >
> > On 9/12/05, Anze Vidmar <anzevi at gmail.com> wrote:
> > > hello!
> > >
> > > I need to build a cluster to run a simple web application.
> > > The idea is to have a powerful machine that is running ESX server. In
> > > the ESX server we need to set up a simple cluster for handling the
> > > application.
> > >
> > > Since I've never been building clusters before, I'm asking you what's
> > > the best way? I've been thinking RHEL AS 4 + Redhat Cluster Suite. Is
> > > there anything else? Is there any documentation regarding this topic?
> > >
> > > And btw... Is it possible to build cluster with Fedora?
> > >
> > > Regards
> > >
> > >
> > > --
> > > Anze Vidmar <anzevi at gmail.com>
> > >
> > > --
> > > redhat-list mailing list
> > > unsubscribe mailto:redhat-list-request at redhat.com?subject=unsubscribe
> > > https://www.redhat.com/mailman/listinfo/redhat-list
> > >
> >
> > --
> > redhat-list mailing list
> > unsubscribe mailto:redhat-list-request at redhat.com?subject=unsubscribe
> > https://www.redhat.com/mailman/listinfo/redhat-list
> >
> > --
> > No virus found in this incoming message.
> > Checked by AVG Anti-Virus.
> > Version: 7.0.344 / Virus Database: 267.10.22/98 - Release Date:
> 12.09.2005
> >
> >
> > --
> > No virus found in this outgoing message.
> > Checked by AVG Anti-Virus.
> > Version: 7.0.344 / Virus Database: 267.11.4/109 - Release Date:
> 21.09.2005
> >
> >
> >
> >
> >
> > ------------------------------
> >
> > Message: 10
> > Date: Wed, 21 Sep 2005 16:19:56 -0400
> > From: Magnus Andersen <mag.andersen at gmail.com>
> > Subject: Re: LVM packets for Red Hat AS 2.1
> > To: General Red Hat Linux discussion list <redhat-list at redhat.com>
> > Message-ID: <5ea165840509211319382b8b21 at mail.gmail.com>
> > Content-Type: text/plain; charset=ISO-8859-1
> >
> > You can go to this site
> > http://tldp.org/HOWTO/LVM-HOWTO/downloadsource.htmland download the
> > source.
> >
> > Also, LVM is not supported by RedHat on version 2.1.
> >
> > --
> > Magnus Andersen
> > Systems Administrator / Oracle DBA
> > Walker & Associates, Inc.
> >
> >
> > ------------------------------
> >
> > Message: 11
> > Date: Wed, 21 Sep 2005 16:47:50 -0400
> > From: Yasushi Okubo <yasushi at cabm.rutgers.edu>
> > Subject: Re: AW: building cluster
> > To: General Red Hat Linux discussion list <redhat-list at redhat.com>
> > Message-ID: <4331C6F6.30508 at cabm.rutgers.edu>
> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed
> >
> > funtom wrote:
> >
> > >Hi,
> > >
> > >It's a good idea to use Redhat Cluster Suite with RHEL4.
> > >Have a look here:
> > >
> > >http://www.redhat.com/docs/manuals/csgfs/browse/rh-cs-en/
> > >
> > >
> > >
> > We are in transition from PBS to Torque.
> > http://www.clusterresources.com/products/torque/
> >
> > Does anyone have any data or information to compare those (Redhat
> > Cluster Suite vs Torque) since I do not know much about cluster suite ?
> >
> > yasushi
> >
> > >regards,
> > >Thomas
> > >
> > >-----Urspr�ngliche Nachricht-----
> > >Von: redhat-list-bounces at redhat.com
> > [mailto:redhat-list-bounces at redhat.com]
> > >Im Auftrag von Greg Golin
> > >Gesendet: Montag, 12. September 2005 09:27
> > >An: General Red Hat Linux discussion list
> > >Betreff: Re: building cluster
> > >
> > >www.linux-ha.org is another option. rh cluster suite is not trivial.
> > >
> > >good luck.
> > >gg
> > >
> > >On 9/12/05, Anze Vidmar <anzevi at gmail.com> wrote:
> > >
> > >
> > >>hello!
> > >>
> > >>I need to build a cluster to run a simple web application.
> > >>The idea is to have a powerful machine that is running ESX server. In
> > >>the ESX server we need to set up a simple cluster for handling the
> > >>application.
> > >>
> > >>Since I've never been building clusters before, I'm asking you what's
> > >>the best way? I've been thinking RHEL AS 4 + Redhat Cluster Suite. Is
> > >>there anything else? Is there any documentation regarding this topic?
> > >>
> > >>And btw... Is it possible to build cluster with Fedora?
> > >>
> > >>Regards
> > >>
> > >>
> > >>--
> > >>Anze Vidmar <anzevi at gmail.com>
> > >>
> > >>--
> > >>redhat-list mailing list
> > >>unsubscribe mailto:redhat-list-request at redhat.com?subject=unsubscribe
> > >>https://www.redhat.com/mailman/listinfo/redhat-list
> > >>
> > >>
> > >>
> > >
> > >
> > >
> >
> >
> >
> > ------------------------------
> >
> > Message: 12
> > Date: Wed, 21 Sep 2005 22:39:02 +0200
> > From: Anze Vidmar <anzevi at gmail.com>
> > Subject: Re: sudo - superuser setup
> > To: General Red Hat Linux discussion list <redhat-list at redhat.com>
> > Message-ID: <1127335143.8072.12.camel at sataras.home.local>
> > Content-Type: text/plain
> >
> > On Wed, 2005-09-21 at 11:30 -0400, Han Tin wrote:
> > > Is it possible to setup sudo superuser in RH Linux like in HP-UX.
> > I don't know how's that done in HP-UX, but in Redhat you can configure
> > sudo for users with "visudo" command from usr/sbin/visudo
> >
> > Also, make sure you read manual page of visudo command:
> >
> > man visudo
> >
> > Hope that helps.
> >
> > Anze
> >
> >
> >
> > ------------------------------
> >
> > Message: 13
> > Date: Wed, 21 Sep 2005 18:47:21 -0400
> > From: "Allen, Jack" <Jack.Allen at McKesson.com>
> > Subject: Tape drive support again
> > To: "'Redhat-list at redhat.com'" <Redhat-list at redhat.com>
> > Message-ID:
> > <C28DB247D333BC47BBAAFDC914DE39010261F5ED at atlexc07ntms.mckesson.com>
> > Content-Type: text/plain
> >
> > We are installing a Dell 6850 and loading RH AS 4. Dell is
> > telling use we need an Adaptec 39160 HBA to connect the tape drive to.
> > Doing "strings aic7xxx.ko | grep 160" show 29160 and 19160 but no 39160.
> > My question is which driver supports this HBA?
> >
> > Thanks:
> > Jack Allen
> >
> >
> >
> > ------------------------------
> >
> > Message: 14
> > Date: Wed, 21 Sep 2005 22:56:10 +0000
> > From: Greg Golin <greg.golin at gmail.com>
> > Subject: Re: Tape drive support again
> > To: General Red Hat Linux discussion list <redhat-list at redhat.com>
> > Message-ID: <e32a6a390509211556f2eb920 at mail.gmail.com>
> > Content-Type: text/plain; charset=ISO-8859-1
> >
> > I guess you guys dont have the kernel source installed?
> >
> > head -n100 /usr/src/linux/Documentation/scsi/aic7xxx.txt
> >
> > ====================================================================
> > = Adaptec Aic7xxx Fast -> Ultra160 Family Manager Set v6.2.28 =
> > = README for =
> > = The Linux Operating System =
> > ====================================================================
> >
> > The following information is available in this file:
> >
> > 1. Supported Hardware
> > 2. Version History
> > 3. Command Line Options
> > 4. Contacting Adaptec
> >
> > 1. Supported Hardware
> >
> > The following Adaptec SCSI Chips and Host Adapters are supported by
> > the aic7xxx driver.
> >
> > Chip MIPS Host Bus MaxSync MaxWidth SCBs Notes
> > ---------------------------------------------------------------
> > aic7770 10 EISA/VL 10MHz 16Bit 4 1
> > aic7850 10 PCI/32 10MHz 8Bit 3
> > aic7855 10 PCI/32 10MHz 8Bit 3
> > aic7856 10 PCI/32 10MHz 8Bit 3
> > aic7859 10 PCI/32 20MHz 8Bit 3
> > aic7860 10 PCI/32 20MHz 8Bit 3
> > aic7870 10 PCI/32 10MHz 16Bit 16
> > aic7880 10 PCI/32 20MHz 16Bit 16
> > aic7890 20 PCI/32 40MHz 16Bit 16 3 4 5 6 7 8
> > aic7891 20 PCI/64 40MHz 16Bit 16 3 4 5 6 7 8
> > aic7892 20 PCI/64-66 80MHz 16Bit 16 3 4 5 6 7 8
> > aic7895 15 PCI/32 20MHz 16Bit 16 2 3 4 5
> > aic7895C 15 PCI/32 20MHz 16Bit 16 2 3 4 5 8
> > aic7896 20 PCI/32 40MHz 16Bit 16 2 3 4 5 6 7 8
> > aic7897 20 PCI/64 40MHz 16Bit 16 2 3 4 5 6 7 8
> > aic7899 20 PCI/64-66 80MHz 16Bit 16 2 3 4 5 6 7 8
> >
> >
> >
> > On 9/21/05, Allen, Jack <Jack.Allen at mckesson.com> wrote:
> > > We are installing a Dell 6850 and loading RH AS 4. Dell is
> > > telling use we need an Adaptec 39160 HBA to connect the tape drive to.
> > > Doing "strings aic7xxx.ko | grep 160" show 29160 and 19160 but no
> 39160.
> > > My question is which driver supports this HBA?
> > >
> > > Thanks:
> > > Jack Allen
> > >
> > > --
> > > redhat-list mailing list
> > > unsubscribe mailto:redhat-list-request at redhat.com?subject=unsubscribe
> > > https://www.redhat.com/mailman/listinfo/redhat-list
> > >
> >
> >
> >
> > ------------------------------
> >
> > Message: 15
> > Date: Wed, 21 Sep 2005 17:57:15 -0500
> > From: "Dege, Robert C." <robert.dege at ngc.com>
> > Subject: RE: Tape drive support again
> > To: "General Red Hat Linux discussion list" <redhat-list at redhat.com>
> > Message-ID:
> > <1DFA50D9FC4E564F861EEB8BF16DBFAE8760B1 at xcgil106.northgrum.com>
> > Content-Type: text/plain; charset="us-ascii"
> >
> >
> > I use the Adaptec 39160 on one of my file servers. The aic7xxx.ko does
> > support it. I am using the 2.4 kernel on my server, although I don't
> > think that'll make a difference for the 2.6 series.
> >
> >
> > Excerpt from dmesg:
> >
> > scsi0 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.36
> > <Adaptec 3960D Ultra160 SCSI adapter>
> > aic7899: Ultra160 Wide Channel A, SCSI Id=7, 32/253 SCBs
> >
> > scsi1 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.36
> > <Adaptec 3960D Ultra160 SCSI adapter>
> > aic7899: Ultra160 Wide Channel B, SCSI Id=7, 32/253 SCBs
> >
> >
> > Excerpt from lspci:
> >
> > 01:00.0 SCSI storage controller: Adaptec AHA-3960D / AIC-7899A U160/m
> > (rev 01)
> > Subsystem: Adaptec AHA-3960D U160/m
> > Flags: bus master, 66Mhz, medium devsel, latency 64, IRQ 7
> > BIST result: 00
> > I/O ports at d400 [disabled] [size=256]
> > Memory at ff8fe000 (64-bit, non-prefetchable) [size=4K]
> > Expansion ROM at ff8a0000 [disabled] [size=128K]
> > Capabilities: [dc] Power Management version 2
> >
> > 01:00.1 SCSI storage controller: Adaptec AHA-3960D / AIC-7899A U160/m
> > (rev 01)
> > Subsystem: Adaptec AHA-3960D U160/m
> > Flags: bus master, 66Mhz, medium devsel, latency 64, IRQ 10
> > BIST result: 00
> > I/O ports at d800 [disabled] [size=256]
> > Memory at ff8ff000 (64-bit, non-prefetchable) [size=4K]
> > Expansion ROM at ff8c0000 [disabled] [size=128K]
> > Capabilities: [dc] Power Management version 2
> >
> >
> > -Rob
> >
> >
> > > -----Original Message-----
> > > From: redhat-list-bounces at redhat.com
> > > [mailto:redhat-list-bounces at redhat.com] On Behalf Of Allen, Jack
> > > Sent: Wednesday, September 21, 2005 6:47 PM
> > > To: 'Redhat-list at redhat.com'
> > > Subject: Tape drive support again
> > >
> > > We are installing a Dell 6850 and loading RH AS 4.
> > > Dell is telling use we need an Adaptec 39160 HBA to connect
> > > the tape drive to.
> > > Doing "strings aic7xxx.ko | grep 160" show 29160 and 19160
> > > but no 39160.
> > > My question is which driver supports this HBA?
> > >
> > > Thanks:
> > > Jack Allen
> > >
> > > --
> > > redhat-list mailing list
> > > unsubscribe mailto:redhat-list-request at redhat.com?subject=unsubscribe
> > > https://www.redhat.com/mailman/listinfo/redhat-list
> > >
> >
> >
> >
> > ------------------------------
> >
> > Message: 16
> > Date: Thu, 22 Sep 2005 10:57:28 +1200
> > From: "Geoff Rainey \(DSL AK\)" <GeoffR at datacom.co.nz>
> > Subject: RE: Tape drive support again
> > To: "General Red Hat Linux discussion list" <redhat-list at redhat.com>
> > Message-ID:
> > <3BE53D000F2EB846B8A899CD0DECB9320FE737 at dnzakex1.datacom.co.nz>
> > Content-Type: text/plain; charset="iso-8859-1"
> >
> > The Dell support site should tell you which driver supports that HBA.
> >
> > I know when I installed an HBA for an IBM X-345 box, I had to check on
> > IBM's website for a correlation between the driver and the correct kernel
> > version.
> >
> >
> > -----Original Message-----
> > From: redhat-list-bounces at redhat.com on behalf of Allen, Jack
> > Sent: Thu 9/22/2005 10:47 AM
> > To: 'Redhat-list at redhat.com'
> > Subject: Tape drive support again
> >
> > We are installing a Dell 6850 and loading RH AS 4. Dell is
> > telling use we need an Adaptec 39160 HBA to connect the tape drive to.
> > Doing "strings aic7xxx.ko | grep 160" show 29160 and 19160 but no 39160.
> > My question is which driver supports this HBA?
> >
> > Thanks:
> > Jack Allen
> >
> > --
> > redhat-list mailing list
> > unsubscribe mailto:redhat-list-request at redhat.com?subject=unsubscribe
> > https://www.redhat.com/mailman/listinfo/redhat-list
> >
> >
> > ------------------------------
> >
> > Message: 17
> > Date: Wed, 21 Sep 2005 22:08:02 -0400
> > From: "Allen, Jack" <Jack.Allen at McKesson.com>
> > Subject: RE: Tape drive support again
> > To: "'General Red Hat Linux discussion list'" <redhat-list at redhat.com>
> > Message-ID:
> > <C28DB247D333BC47BBAAFDC914DE39010261F5F1 at atlexc07ntms.mckesson.com>
> > Content-Type: text/plain
> >
> > That is what I was looking for. Hopefully the 2.6 version works the
> > same. I will find out as soon the HBA and tape drive get hooked up.
> >
> > Thanks:
> > Jack Allen
> >
> > -----Original Message-----
> > From: Dege, Robert C. [mailto:robert.dege at ngc.com]
> > Sent: Wednesday, September 21, 2005 6:57 PM
> > To: General Red Hat Linux discussion list
> > Subject: RE: Tape drive support again
> >
> >
> >
> > I use the Adaptec 39160 on one of my file servers. The aic7xxx.ko does
> > support it. I am using the 2.4 kernel on my server, although I don't
> > think that'll make a difference for the 2.6 series.
> >
> >
> > Excerpt from dmesg:
> >
> > scsi0 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.36
> > <Adaptec 3960D Ultra160 SCSI adapter>
> > aic7899: Ultra160 Wide Channel A, SCSI Id=7, 32/253 SCBs
> >
> > scsi1 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.36
> > <Adaptec 3960D Ultra160 SCSI adapter>
> > aic7899: Ultra160 Wide Channel B, SCSI Id=7, 32/253 SCBs
> >
> >
> > Excerpt from lspci:
> >
> > 01:00.0 SCSI storage controller: Adaptec AHA-3960D / AIC-7899A U160/m
> > (rev 01)
> > Subsystem: Adaptec AHA-3960D U160/m
> > Flags: bus master, 66Mhz, medium devsel, latency 64, IRQ 7
> > BIST result: 00
> > I/O ports at d400 [disabled] [size=256]
> > Memory at ff8fe000 (64-bit, non-prefetchable) [size=4K]
> > Expansion ROM at ff8a0000 [disabled] [size=128K]
> > Capabilities: [dc] Power Management version 2
> >
> > 01:00.1 SCSI storage controller: Adaptec AHA-3960D / AIC-7899A U160/m
> > (rev 01)
> > Subsystem: Adaptec AHA-3960D U160/m
> > Flags: bus master, 66Mhz, medium devsel, latency 64, IRQ 10
> > BIST result: 00
> > I/O ports at d800 [disabled] [size=256]
> > Memory at ff8ff000 (64-bit, non-prefetchable) [size=4K]
> > Expansion ROM at ff8c0000 [disabled] [size=128K]
> > Capabilities: [dc] Power Management version 2
> >
> >
> > -Rob
> >
> >
> > > -----Original Message-----
> > > From: redhat-list-bounces at redhat.com
> > > [mailto:redhat-list-bounces at redhat.com] On Behalf Of Allen, Jack
> > > Sent: Wednesday, September 21, 2005 6:47 PM
> > > To: 'Redhat-list at redhat.com'
> > > Subject: Tape drive support again
> > >
> > > We are installing a Dell 6850 and loading RH AS 4.
> > > Dell is telling use we need an Adaptec 39160 HBA to connect
> > > the tape drive to.
> > > Doing "strings aic7xxx.ko | grep 160" show 29160 and 19160
> > > but no 39160.
> > > My question is which driver supports this HBA?
> > >
> > > Thanks:
> > > Jack Allen
> > >
> > > --
> > > redhat-list mailing list
> > > unsubscribe mailto:redhat-list-request at redhat.com?subject=unsubscribe
> > > https://www.redhat.com/mailman/listinfo/redhat-list
> > >
> >
> > --
> > redhat-list mailing list
> > unsubscribe mailto:redhat-list-request at redhat.com?subject=unsubscribe
> > https://www.redhat.com/mailman/listinfo/redhat-list
> >
> >
> >
> > ------------------------------
> >
> > Message: 18
> > Date: Thu, 22 Sep 2005 09:39:43 +0300
> > From: "Tolga Evren" <tolgae at paro.com.tr>
> > Subject: swap device io
> > To: <redhat-list at redhat.com>
> > Message-ID:
> > <E2AAC0CC25781D40A121762631343611017AABD5 at EXCH01A.aspkoc.net>
> > Content-Type: text/plain; charset="us-ascii"
> >
> > Hi ,
> >
> >
> >
> > This is my fstab output:
> >
> >
> >
> > [oracle at tanidw1 proc]$ cat /etc/fstab
> >
> > LABEL=/ / ext3 defaults
> > 1 1
> >
> > /dev/md1 /boot/efi vfat defaults
> > 0 0
> >
> > none /dev/pts devpts gid=5,mode=620
> > 0 0
> >
> > LABEL=/home /home ext3 defaults
> > 1 2
> >
> > none /proc proc defaults
> > 0 0
> >
> > #none /dev/shm tmpfs defaults
> > 0 0
> >
> > /dev/md2 swap swap defaults
> > 0 0
> >
> > /dev/cdrom /mnt/cdrom iso9660
> > noauto,owner,kudzu,ro 0 0
> >
> > /dev/cdrom /mnt/dvd udf
> > noauto,owner,kudzu,ro 0 0
> >
> > /dev/sdd1 /oracle/quorum ocfs _netdev 0 0
> >
> > /dev/sde1 /oracle/data01 ocfs _netdev 0 0
> >
> > /dev/sdf1 /oracle/data02 ocfs _netdev 0 0
> >
> >
> >
> >
> >
> > according to this /dev/md2 is the swap device.
> >
> >
> >
> > when i monitor the system ny using sar -B which shows paging operations
> > , i see heavy page ins and outs:
> >
> >
> >
> > 08:35:14 AM pgpgin/s pgpgout/s activepg inadtypg inaclnpg inatarpg
> >
> > 08:35:17 AM 54993.00 2242.67 178616 117518 7333 60693
> >
> > 08:35:20 AM 55719.33 2233.33 178616 117518 7333 60693
> >
> > 08:35:23 AM 39684.67 2611.00 178616 117518 7333 60693
> >
> > 08:35:26 AM 60330.00 3418.00 178616 117518 7333 60693
> >
> > 08:35:29 AM 50921.67 3545.67 178621 117518 7333 60694
> >
> >
> >
> >
> >
> >
> >
> > But i see no io through the swap device:
> >
> >
> >
> > iostat -x /dev/md2 1
> >
> >
> >
> > avg-cpu: %user %nice %sys %idle
> >
> > 119.78 0.02 34.73 869.47
> >
> >
> >
> > Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s avgrq-sz avgqu-sz
> > await svctm %util
> >
> > md2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
> > 0.00 0.00 0.00
> >
> >
> >
> >
> >
> > So , what can be the reason for this?
> >
> >
> >
> > Kind Regards,
> >
> > tolga
> >
> >
> >
> > ------------------------------
> >
> > Message: 19
> > Date: Thu, 22 Sep 2005 11:09:50 +0300
> > From: "Tolga Evren" <tolgae at paro.com.tr>
> > Subject: page cache , process map issues
> > To: <redhat-list at redhat.com>
> > Message-ID:
> > <E2AAC0CC25781D40A121762631343611017AABE0 at EXCH01A.aspkoc.net>
> > Content-Type: text/plain; charset="us-ascii"
> >
> > Hi Gurus ,
> >
> >
> >
> > I need to understand the interaction between the page cache (which is
> > used for file systemn data cache) , and virtual memory map of a process
> > which uses data from the cache.
> >
> >
> >
> > Where does the pages which are read from the disk is mapped inside a
> > process?
> >
> >
> >
> > Imagine a simple c program:
> >
> >
> >
> > char *buf;
> >
> > buf = (char *)malloc(1000);
> >
> >
> >
> > This buf is allocated inside the heap , or in detail it is first
> > reserved (in swap file) ,and on demand , it is allocated (inside the
> > phy.ram)
> >
> >
> >
> > Then imagine that the code has the following line:
> >
> >
> >
> > *buf = 65 ;
> >
> >
> >
> > So i modifed the contents the buffer.
> >
> >
> >
> > As far as i know , if the pages which are modified like this , needs to
> > be written to the swap disk in order to be reused again .
> >
> > So if these pages pageout by the os , they are written to the swap
> > file.
> >
> >
> >
> > Now consider that ,i start to read data files by using read ,or
> > readv or pread system calls. ( readv and pread are the io calls which
> > oracle or other database systems uses on unix)
> >
> >
> >
> >
> >
> > fdes=open("/data/spss/x1.dat",O_RDONLY);
> >
> >
> >
> > while (fdes)
> >
> > {
> >
> > printf("%d\n",read(fdes, buf,sz));
> >
> > }
> >
> >
> >
> > I wonder how things happen now.
> >
> > How the data blocks which are cached inside the page cache mapped to the
> > process?
> >
> > If the file is read first time by this process , the file must be read
> > from the disk. Then the blocks are cached inside the page cache. The
> > page cache has no backing storage inside the swap file ,
> >
> > but instead it is directly mapped from the data file itself.
> >
> > (Is this correct?)
> >
> >
> >
> > When my process reads data from the disk , then does the page that is
> > inside the page cache copied into the process map ? Or is it shared and
> > no copy takes place?
> >
> >
> >
> > Kind Regards,
> >
> > tolga
> >
> >
> >
> > ------------------------------
> >
> > Message: 20
> > Date: Thu, 22 Sep 2005 09:19:09 -0400
> > From: "Clark, Patricia" <Clarkp at osti.gov>
> > Subject: Errata and update releases
> > To: redhat-list at redhat.com
> > Message-ID:
> > <26D5949E6EABA442A75AB8351393E20B4FB5FC at ostimail2.osti.gov>
> > Content-Type: text/plain; charset=us-ascii
> >
> > What is the rule-of-thumb pertaining to applied errata in an update
> > release? I need to maintain supported systems via sneakernet. I have
> > the latest updated ISOs for RHEL3 and RHEL4 and want to make sure that I
> > have all of the errata packages, too. Can I correctly assume that
> > anything released since the update is all that I need, or do I need to
> > additionally obtain errata packages released on or near the update
> > release? I know I can check these current updates against the errata,
> > but I want to know for future reference.
> >
> > Patti Clark
> > Unix System Administrator
> > Office of Scientific and Technical Information
> > <mailto:clarkp at osti.gov>
> >
> >
> >
> > ------------------------------
> >
> > Message: 21
> > Date: Thu, 22 Sep 2005 10:26:33 -0300
> > From: "Shaw, Marco" <Marco.Shaw at aliant.ca>
> > Subject: RE: Errata and update releases
> > To: "General Red Hat Linux discussion list" <redhat-list at redhat.com>
> > Message-ID:
> > <A8A1C0013B2F944582B8C8BA66B7B27803F6829C at nbexmb02.aliant.icn>
> > Content-Type: text/plain; charset="US-ASCII"
> >
> > I would stick with getting the errata packages 'on or near' the update
> > release.
> >
> > The update releases also go through a brief beta cycle where the errata
> > list included
> > would be frozen once the beta was announced/released.
> >
> > Marco
> > RHCE
> >
> > > -----Original Message-----
> > > From: redhat-list-bounces at redhat.com
> > > [mailto:redhat-list-bounces at redhat.com] On Behalf Of Clark, Patricia
> > > Sent: Thursday, September 22, 2005 10:19 AM
> > > To: redhat-list at redhat.com
> > > Subject: Errata and update releases
> > >
> > > What is the rule-of-thumb pertaining to applied errata in an update
> > > release? I need to maintain supported systems via sneakernet. I have
> > > the latest updated ISOs for RHEL3 and RHEL4 and want to make
> > > sure that I
> > > have all of the errata packages, too. Can I correctly assume that
> > > anything released since the update is all that I need, or do I need to
> > > additionally obtain errata packages released on or near the update
> > > release? I know I can check these current updates against the errata,
> > > but I want to know for future reference.
> > >
> > > Patti Clark
> > > Unix System Administrator
> > > Office of Scientific and Technical Information
> > > <mailto:clarkp at osti.gov>
> > >
> > > --
> > > redhat-list mailing list
> > > unsubscribe mailto:redhat-list-request at redhat.com?subject=subscribe
> > > https://www.redhat.com/mailman/listinfo/redhat-list
> > >
> >
> >
> >
> > ------------------------------
> >
> > Message: 22
> > Date: Thu, 22 Sep 2005 08:20:57 -0700 (PDT)
> > From: Mike Wooding <timmywooding at yahoo.com>
> > Subject: Re: VNC help (up2date name)
> > To: General Red Hat Linux discussion list <redhat-list at redhat.com>
> > Message-ID: <20050922152057.26489.qmail at web53803.mail.yahoo.com>
> > Content-Type: text/plain; charset=iso-8859-1
> >
> >
> >
> > --- Evan Panagiotopoulos <epanagio at pcsd.k12.ny.us> wrote:
> > > Does the vnc client have a specific name? I tried vncclient and
> > > vncviewer but no such package exists.
> > >
> > > By the way, I thought that searching in redhat.com for vncviewer
> > > should yield something but... I was wrong.
> >
> > The package may be something like tightvnc-?.?.?-?
> > and/or tightvnc-server-?????
> >
> >
> > He who laughs last thinks slowest.
> >
> >
> >
> >
> > ______________________________________________________
> > Yahoo! for Good
> > Donate to the Hurricane Katrina relief effort.
> > http://store.yahoo.com/redcross-donate3/
> >
> >
> >
> > ------------------------------
> >
> > Message: 23
> > Date: Thu, 22 Sep 2005 08:25:55 -0700
> > From: "Jai Rangi" <jprangi at aleks.com>
> > Subject: Server Crash
> > To: "'General Red Hat Linux discussion list'" <redhat-list at redhat.com>
> > Message-ID: <200509221524.j8MFO6t19712 at ip26.aleks.com>
> > Content-Type: text/plain; charset="us-ascii"
> >
> > Hello,
> > I got a strange problem,
> > My server which is also router, is crashing way too often since
> yesterday.
> > One it is down, all the network is down, I cant logon even from console.
> > Any
> > idea where should I look for the problem.
> >
> > Thank You,
> > -Jai
> >
> >
> >
> > ------------------------------
> >
> > Message: 24
> > Date: Thu, 22 Sep 2005 15:41:19 +0000
> > From: Greg Golin <greg.golin at gmail.com>
> > Subject: Re: Server Crash
> > To: General Red Hat Linux discussion list <redhat-list at redhat.com>
> > Message-ID: <e32a6a3905092208416e3bcf7e at mail.gmail.com>
> > Content-Type: text/plain; charset=ISO-8859-1
> >
> > Look at the logs. Try ssh'ing into the server and use tail -f
> > /var/log/messages to see whats going on.
> >
> > On 9/22/05, Jai Rangi <jprangi at aleks.com> wrote:
> > > Hello,
> > > I got a strange problem,
> > > My server which is also router, is crashing way too often since
> > yesterday.
> > > One it is down, all the network is down, I cant logon even from
> console.
> > Any
> > > idea where should I look for the problem.
> > >
> > > Thank You,
> > > -Jai
> > >
> > > --
> > > redhat-list mailing list
> > > unsubscribe mailto:redhat-list-request at redhat.com?subject=unsubscribe
> > > https://www.redhat.com/mailman/listinfo/redhat-list
> > >
> >
> >
> >
> > ------------------------------
> >
> > Message: 25
> > Date: 22 Sep 2005 11:41:32 -0400
> > From: Andrew Bacchi <bacchi at rpi.edu>
> > Subject: Re: Server Crash
> > To: General Red Hat Linux discussion list <redhat-list at redhat.com>
> > Message-ID: <1127403692.25513.16.camel at boreal.netel.rpi.edu>
> > Content-Type: text/plain
> >
> > This could be either a drive going bad, or out of free space. Try
> > rebooting in single user mode, and "df" to see if you have any filled
> > partitions. I always suspect /var/log/ is full.
> >
> > Do you hear any strange noises from the spinning hard drive?
> >
> > On Thu, 2005-09-22 at 11:25, Jai Rangi wrote:
> > > Hello,
> > > I got a strange problem,
> > > My server which is also router, is crashing way too often since
> > yesterday.
> > > One it is down, all the network is down, I cant logon even from
> console.
> > Any
> > > idea where should I look for the problem.
> > >
> > > Thank You,
> > > -Jai
> > >
> > > --
> > > redhat-list mailing list
> > > unsubscribe mailto:redhat-list-request at redhat.com?subject=unsubscribe
> > > https://www.redhat.com/mailman/listinfo/redhat-list
> > >
> > --
> > veritatis simplex oratio est
> >
> > Andrew Bacchi
> > Staff Systems Programmer
> > Rensselaer Polytechnic Institute
> > phone: 518 276-6415 fax: 518 276-2809
> >
> > http://www.rpi.edu/~bacchi/
> >
> >
> >
> > ------------------------------
> >
> > Message: 26
> > Date: Thu, 22 Sep 2005 11:47:40 -0400
> > From: "Smith, Albert" <Albert.Smith at genexservices.com>
> > Subject: RE: Server Crash
> > To: "General Red Hat Linux discussion list" <redhat-list at redhat.com>
> > Message-ID:
> > <462170B0EBFCFE4AB1E54ED8C269A5BC02F7B07F at PHLVEXCH01.genexservices.com>
> >
> > Content-Type: text/plain; charset=us-ascii
> >
> > > -----Original Message-----
> > > From: redhat-list-bounces at redhat.com
> > > [mailto:redhat-list-bounces at redhat.com] On Behalf Of Andrew Bacchi
> > > Sent: Thursday, September 22, 2005 11:42 AM
> > > To: General Red Hat Linux discussion list
> > > Subject: Re: Server Crash
> > >
> > > This could be either a drive going bad, or out of free space.
> > > Try rebooting in single user mode, and "df" to see if you
> > > have any filled partitions. I always suspect /var/log/ is full.
> > >
> > > Do you hear any strange noises from the spinning hard drive?
> > >
> > > On Thu, 2005-09-22 at 11:25, Jai Rangi wrote:
> > > > Hello,
> > > > I got a strange problem,
> > > > My server which is also router, is crashing way too often
> > > since yesterday.
> > > > One it is down, all the network is down, I cant logon even from
> > > > console. Any idea where should I look for the problem.
> > > >
> > > > Thank You,
> > > > -Jai
> > > >
> > > > --
> > > > redhat-list mailing list
> > > > unsubscribe
> > > mailto:redhat-list-request at redhat.com?subject=unsubscribe
> > > > https://www.redhat.com/mailman/listinfo/redhat-list
> > > >
> > > --
> > > veritatis simplex oratio est
> > >
> > > Andrew Bacchi
> > > Staff Systems Programmer
> > > Rensselaer Polytechnic Institute
> > > phone: 518 276-6415 fax: 518 276-2809
> > >
> > > http://www.rpi.edu/~bacchi/
> > >
> > > --
> > > redhat-list mailing list
> > > unsubscribe mailto:redhat-list-request at redhat.com?subject=unsubscribe
> > > https://www.redhat.com/mailman/listinfo/redhat-list
> > >
> > >
> >
> > Is the server crashing like just shutting off on it's own with no
> > shutdown of the process's or is it getting a kernel panic?
> >
> > I would setup a netdump server and starting tracking the information and
> > getting the core files and analyzing those.
> >
> > Albert Smith
> > Sr. Unix Systems Administrator
> > HPCSA, RHCT
> > Genex Services
> > 440 E. Swedesford Rd.
> > Wayne, PA 19087
> > albert.smith at genexservices.com
> > (610) 964-5154
> >
> >
> >
> >
> >
> > ------------------------------
> >
> > __
> > redhat-list mailing list
> > Unsubscribe mailto:redhat-list-request at redhat.com?subject=unsubscribe
> > https://www.redhat.com/mailman/listinfo/redhat-list
> >
> > End of redhat-list Digest, Vol 19, Issue 21
> > *******************************************
> >
>
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