Reg : RHEL 5.0 Installatio

Ramakrishnan Seshadhri ramakrishnan42 at gmail.com
Sun May 3 09:59:46 UTC 2009


Hi

Here is the ifconfig report below

[root at dbbld ~]# ifconfig
bond0     Link encap:Ethernet  HWaddr 00:21:5E:2D:90:5E
          inet addr:132.1.1.125  Bcast:132.1.255.255  Mask:255.255.0.0
          inet6 addr: fe80::221:5eff:fe2d:905e/64 Scope:Link
          UP BROADCAST RUNNING MASTER MULTICAST  MTU:1500  Metric:1
          RX packets:1150 errors:0 dropped:0 overruns:0 frame:0
          TX packets:961 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:93435 (91.2 KiB)  TX bytes:87481 (85.4 KiB)

eth0      Link encap:Ethernet  HWaddr 00:21:5E:2D:90:5E
          inet6 addr: fe80::221:5eff:fe2d:905e/64 Scope:Link
          UP BROADCAST RUNNING SLAVE MULTICAST  MTU:1500  Metric:1
          RX packets:1150 errors:0 dropped:0 overruns:0 frame:0
          TX packets:961 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:93435 (91.2 KiB)  TX bytes:87481 (85.4 KiB)
          Interrupt:114 Memory:da000000-da012100

eth1      Link encap:Ethernet  HWaddr 00:21:5E:2D:90:60
          UP BROADCAST RUNNING SLAVE MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)
          Interrupt:82 Memory:d8000000-d8012100

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:2776 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2776 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:3321472 (3.1 MiB)  TX bytes:3321472 (3.1 MiB)

the collision  field is zero. But the TX is bytes:87481. There are Two NIC
configured to the Virtual IP bond0. Is there a problem there.
Is there a log while where I could check the errors.

Ram

On Sun, May 3, 2009 at 1:41 PM, Geofrey Rainey <Geofrey.Rainey at tvnz.co.nz>wrote:

> 1. look in the output of ifconfig and you'll see a "collisions" field
> which should have a value of 0.
>
> 2. look at the output of either "ethtool <interface>", or mii-tool
> <interface>, and you will see what the port speed is. This must match
> the port speed of your switch (your network guys will tell you if the
> switch is
> 100Mb or 1000Mb etc).
>
> Look for output like this which says the interface is running at
> 100Mb/s. This is bad if you're connected to a 1000Mb switch.
>
> Advertised auto-negotiation: Yes
> Speed: 100Mb/s
> Duplex: Full
>
> -----Original Message-----
> From: redhat-list-bounces at redhat.com
> [mailto:redhat-list-bounces at redhat.com] On Behalf Of Ramakrishnan
> Seshadhri
> Sent: Sunday, 3 May 2009 9:30 p.m.
> To: General Red Hat Linux discussion list
> Subject: Re: Reg : RHEL 5.0 Installatio
>
> can you please brief how to check that.
>
> Ram.
>
> On Sun, May 3, 2009 at 1:21 PM, Geofrey Rainey
> <Geofrey.Rainey at tvnz.co.nz>wrote:
>
> > Look in "ifconfig", are there any collisions on the interface?
> >
> > Also, perhaps the switch hasn't properly negotiated the speed with
> > Your interface?
> >
> > -----Original Message-----
> > From: redhat-list-bounces at redhat.com
> > [mailto:redhat-list-bounces at redhat.com] On Behalf Of Ramakrishnan
> > Seshadhri
> > Sent: Sunday, 3 May 2009 9:18 p.m.
> > To: General Red Hat Linux discussion list
> > Subject: Re: Reg : RHEL 5.0 Installatio
> >
> > Actually the problem is here. Once I reboot the server the load is
> > around
> > 2.8 and I am not able to ping the server (All firewalls are turned
> off).
> > After sometime I am able to telnet or ping the server. While pinging
> it
> > drops 50% of packets.
> > both telnet and ssh services are enabled.
> >
> >
> > Ram
> >
> > On Sun, May 3, 2009 at 1:06 PM, Geofrey Rainey
> > <Geofrey.Rainey at tvnz.co.nz>wrote:
> >
> > > Also, what about the outut of the "sar" command without any
> arguments?
> > >
> > > -----Original Message-----
> > > From: redhat-list-bounces at redhat.com
> > > [mailto:redhat-list-bounces at redhat.com] On Behalf Of Ramakrishnan
> > > Seshadhri
> > > Sent: Sunday, 3 May 2009 9:01 p.m.
> > > To: General Red Hat Linux discussion list
> > > Subject: Re: Reg : RHEL 5.0 Installatio
> > >
> > > Hi,
> > >
> > >
> > > Thanks for the response : Here is my output of "sar -r" command
> > >
> > > Linux 2.6.18-53.el5PAE (dbbld)  05/03/2009
> > >
> > > 09:50:01 AM kbmemfree kbmemused  %memused kbbuffers  kbcached
> > kbswpfree
> > > kbswpused  %swpused  kbswpcad
> > > 10:00:01 AM   7400868    910644     10.96    141164    590936
> > > 10388412         0      0.00         0
> > > 10:10:01 AM   7394136    917376     11.04    142056    597464
> > > 10388412         0      0.00         0
> > > 10:20:01 AM   7394756    916756     11.03    142260    597464
> > > 10388412         0      0.00         0
> > > 10:30:01 AM   7394632    916880     11.03    142420    597468
> > > 10388412         0      0.00         0
> > > 10:40:01 AM   7394012    917500     11.04    142668    597488
> > > 10388412         0      0.00         0
> > > Average:      7395681    915831     11.02    142114    596164
> > > 10388412         0      0.00         0
> > >
> > > 10:46:40 AM       LINUX RESTART
> > >
> > > 10:54:21 AM       LINUX RESTART
> > >
> > > 11:00:01 AM kbmemfree kbmemused  %memused kbbuffers  kbcached
> > kbswpfree
> > > kbswpused  %swpused  kbswpcad
> > > 11:10:01 AM   7781624    529888      6.38     97864    300800
> > > 10388412         0      0.00         0
> > > Average:      7781624    529888      6.38     97864    300800
> > > 10388412         0      0.00         0
> > >
> > > 11:22:15 AM       LINUX RESTART
> > >
> > > 11:38:03 AM       LINUX RESTART
> > >
> > > 11:40:01 AM kbmemfree kbmemused  %memused kbbuffers  kbcached
> > kbswpfree
> > > kbswpused  %swpused  kbswpcad
> > > 11:50:01 AM   7780860    530652      6.38     89332    301896
> > > 10388412         0      0.00         0
> > > Average:      7780860    530652      6.38     89332    301896
> > > 10388412         0      0.00         0
> > >
> > > 11:59:06 AM       LINUX RESTART
> > >
> > > 12:00:02 PM kbmemfree kbmemused  %memused kbbuffers  kbcached
> > kbswpfree
> > > kbswpused  %swpused  kbswpcad
> > > 12:10:01 PM   7728928    582584      7.01    135368    303512
> > > 10388412         0      0.00         0
> > > 12:20:01 PM   7729052    582460      7.01    135484    303516
> > > 10388412         0      0.00         0
> > > 12:30:01 PM   7728692    582820      7.01    135904    303884
> > > 10388412         0      0.00         0
> > > 12:40:01 PM    286120   8025392     96.56    121840   7634772
> > > 10388412         0      0.00         0
> > > 12:50:01 PM    289640   8021872     96.52     50696   7736596
> > > 10388408         4      0.00         4
> > > Average:      4752486   3559026     42.82    115858   3256456
> > > 10388411         1      0.00         1
> > >
> > >
> > > I cant see any swap usage.
> > >
> > > Ram
> > >
> > > On Sun, May 3, 2009 at 12:57 PM, Geofrey Rainey
> > > <Geofrey.Rainey at tvnz.co.nz>wrote:
> > >
> > > > Try the following:
> > > >
> > > > # sar -r (look at how much swap is being used)
> > > >
> > > > # sar (is the i/o wait column high?)
> > > >
> > > >
> > > > -----Original Message-----
> > > > From: redhat-list-bounces at redhat.com
> > > > [mailto:redhat-list-bounces at redhat.com] On Behalf Of Ramakrishnan
> > > > Seshadhri
> > > > Sent: Sunday, 3 May 2009 7:41 p.m.
> > > > To: General Red Hat Linux discussion list
> > > > Subject: Reg : RHEL 5.0 Installatio
> > > >
> > > > Hi,
> > > >
> > > > I have installed RHEL 5  on one of the servers and once the server
> > > boots
> > > > up
> > > > the load average is constantly at 2.8 and server is slow.
> > > >
> > > > Server is IBM blade by make .
> > > >
> > > > 8 GB RAM
> > > >
> > > >
> > > > top command does not show any CPR intensive tasks.
> > > >
> > > > please let me know how to find out what is occupying CPU
> > > >
> > > >
> > > > Ram
> > > > --
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