[rhn-users] Backup problem using DLT Tape Drive in LINUX

[Ramesh R]

Thanks Espen, I will give a feedback after trying your suggestion.
 
Regards
Ramesh.R

________________________________

From: rhn-users-bounces at redhat.com [mailto:rhn-users-bounces at redhat.com]
On Behalf Of Espen Ekeroth
Sent: Tuesday, June 21, 2005 1:49 AM
To: Red Hat Network Users List
Subject: RE: [rhn-users] Backup problem using DLT Tape Drive in LINUX



Just to find out if it is the tape system that is the problem - run a
tar with some GB's of files and measure the time. 



/Espen

Phone: +47 69215581 / + 47 92499076
email: espen.ekeroth at omxgroup.com
MSN: espene at halden.net 



	"Trice, Jim" <jtrice at haastcm.com> 
Sent by: rhn-users-bounces at redhat.com 

20.06.2005 19:25 
Please respond to Red Hat Network Users List 

        
        To:        "Red Hat Network Users List" <rhn-users at redhat.com> 
        cc:         
        Subject:        RE: [rhn-users] Backup problem using DLT Tape
Drive in LINUX




Hi,
    If you are planning on using dump for your backups you should
reconsider. I may be a little out of date but linux dump was not
recommended
the last time I looked. I would recommend using cpio or tar for simple
backups.
    I would try to determine if it is the disk access of tape access
giving
problems. Have you tried backing up to /dev/null. You could also
benchmark
your disk systems using something like iozone (google it). 
    
Jim T.
> -----Original Message-----
> From: rhn-users-bounces at redhat.com
[mailto:rhn-users-bounces at redhat.com] On
Behalf Of Ramesh R
> Sent: Monday, June 20, 2005 1:59 AM
> To: rhn-users at redhat.com
> Subject: [rhn-users] Backup problem using DLT Tape Drive in LINUX
> 
> Hi,
>    Iam from India and we have installed Linux ES Verion 3 on DELL
SERVER
> POWEREDGE 2850 series which has following configuration: Dual
Processor
> with 4 GB RAM ad 4 * 72 GB SCSI Hard disk Drives With RAID 10
> technology. We have implemented Oracle Applications ERP . We have a
> peculiar problem for backing up  our data. We have connected DLT Tape
> Drive VS80 40/80GB ( Tandberg)  capacity with SCSI Adaptec Card. When
we
> initiate backup command as follows:
>     dump of /dev/st0 /data/erpp where /dev/st0 denotes the device for
> tape drive and /data/erpp is the partition in which oracle apps has
been
> installed. The timing for backing up 63GB data and files , it takes 18
> hours for completion. We had replaced the SCSI adaptec card , Tape
Drive
> and cable but still it gives same timing.
> The same process we had tried from a desktop by applying latest SCSI
> drivers  and initiated the backup , it took 12 minutes for 2 GB of
data.
> We had applied latest driver for Linux but still it shows the same
> timing. I need to know any other parameters needs to be configured
under
> Linux. I need help more urgently as we are going online by next week.
> 
> Regards
> Rames.R
> 
> _______________________________________________
> rhn-users mailing list
> rhn-users at redhat.com
> https://www.redhat.com/mailman/listinfo/rhn-users

_______________________________________________
rhn-users mailing list
rhn-users at redhat.com
https://www.redhat.com/mailman/listinfo/rhn-users



************************************************************************
********
This e-mail and the information it contains may be privileged and/or
confidential. It is for the intended addressee(s) only.
The unauthorised use, disclosure or copying of this e-mail, or any
information it contains, is prohibited. 
If you are not an intended recipient, please contact the sender and
delete the material from your computer.
************************************************************************
********

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://listman.redhat.com/archives/rhn-users/attachments/20050621/dd0119dc/attachment.htm>