topic Unable to take backup in Operating System - HP-UX

Unable to take backup

Md. Farhan A Azam — Wed, 22 Oct 2008 12:35:47 GMT

Hi, i'm unable to take backup, its showing

Starting interactive backup...
br_backup: Invoking fbackup. See /var/sam/log/br_log for details.
fbackup(1421): no history is available for graph file /var/sam/graphZDAa29498 (below level 0)
fbackup(1004): session begins on Wed Oct 22 19:35:02 2008
fbackup(3047): could not open output file /dev/rmt/3m
fbackup(3019): would you like to enter a new output file?

Kindly help me.....

Re: Unable to take backup

Peter Nikitka — Wed, 22 Oct 2008 12:59:16 GMT

Hi,

first check, which tape devices are really available:
ioscan -fnCtape

Then configure your backup to use the correct device /dev/rmt/Xn

mfG Peter

Re: Unable to take backup

James R. Ferguson — Wed, 22 Oct 2008 13:01:35 GMT

Hi:

Also, make sure that your tape is write-enabled. Check the silly tab on the tape :-)

Regards!

...JRF...

Re: Unable to take backup

Md. Farhan A Azam — Sat, 01 Nov 2008 04:51:36 GMT

Hi,

Tape is alraedy there in the server...and we are getting this error in few tape and in few backup is working

Re: Unable to take backup

Asif Sharif — Sat, 01 Nov 2008 18:10:47 GMT

Salam Farhan,

-->fbackup(3047): could not open output file /dev/rmt/3m

Some thing wrong with tape /dev/rmt/3m.

Could you please post the output of

#ioscan -fnC tape

Regards,
Asif Sharif

Re: Unable to take backup

IT_2007 — Sun, 02 Nov 2008 01:17:41 GMT

couple of suggestions

1. first make sure you are able to rewind it.

mt -t /dev/rmt/3m

2. Try to copy simple file to it like /etc/hosts or /etc/group.

Re: Unable to take backup

Md. Farhan A Azam — Mon, 03 Nov 2008 13:30:35 GMT

Salam Sharif...

Below is the out put

host1>ioscan -fnC tape
Class I H/W Path Driver S/W State H/W Type Description
==========================================================================
tape 0 1/0/2/1/1.3.0 stape CLAIMED DEVICE HP C7438A
/dev/rmt/0m /dev/rmt/0mnb /dev/rmt/c1t3d0BESTn /dev/rmt/c1t3d0DDSb
/dev/rmt/0mb /dev/rmt/c1t3d0BEST /dev/rmt/c1t3d0BESTnb /dev/rmt/c1t3d0DDSn
/dev/rmt/0mn /dev/rmt/c1t3d0BESTb /dev/rmt/c1t3d0DDS /dev/rmt/c1t3d0DDSnb
tape 1 1/0/6/1/0/4/1.1.29.255.0.0.0 stape CLAIMED DEVICE HP Ultrium 2-SCSI
/dev/rmt/1m /dev/rmt/1mn /dev/rmt/c11t0d0BEST /dev/rmt/c11t0d0BESTn
/dev/rmt/1mb /dev/rmt/1mnb /dev/rmt/c11t0d0BESTb /dev/rmt/c11t0d0BESTnb
tape 3 1/0/6/1/0/4/1.1.29.255.0.0.1 stape CLAIMED DEVICE HP Ultrium 2-SCSI
/dev/rmt/3m /dev/rmt/3mn /dev/rmt/c11t0d1BEST /dev/rmt/c11t0d1BESTn
/dev/rmt/3mb /dev/rmt/3mnb /dev/rmt/c11t0d1BESTb /dev/rmt/c11t0d1BESTnb
tape 2 1/0/6/1/0/4/1.1.30.255.0.0.0 stape CLAIMED DEVICE HP Ultrium 2-SCSI
/dev/rmt/2m /dev/rmt/2mn /dev/rmt/c12t0d0BEST /dev/rmt/c12t0d0BESTn
/dev/rmt/2mb /dev/rmt/2mnb /dev/rmt/c12t0d0BESTb /dev/rmt/c12t0d0BESTnb
tape 4 1/0/6/1/0/4/1.1.30.255.0.0.1 stape CLAIMED DEVICE HP Ultrium 2-SCSI
/dev/rmt/4m /dev/rmt/4mn /dev/rmt/c12t0d1BEST /dev/rmt/c12t0d1BESTn
/dev/rmt/4mb /dev/rmt/4mnb /dev/rmt/c12t0d1BESTb /dev/rmt/c12t0d1BESTnb

Re: Unable to take backup

Ganesan R — Mon, 03 Nov 2008 14:17:42 GMT

Hi,

If it works intermittenly then it could be either drive issue or media problem.

Try to clean the drive using cleaning tape or replace the drive.

Re: Unable to take backup

Peter Nikitka — Mon, 03 Nov 2008 18:01:09 GMT

Hi,

seeing five tape writers on you server, I would test, if the connection between your memory (or a label on the device) and the device information of HP-UX is still valid.

Put a tape only in that drive, YOU assume is /dev/rmt/3XX
and then try somthing like
for dev in 0mn 1mn 2mn 3mn 4mn
do
print $dev
mt -t /dev/rmt/$dev status # may be option -f here
done

Perhaps there is exactly one positive output.

Eject that tape, use another slot and repeat this procdure.

mfG Peter

Re: Unable to take backup

Md. Farhan A Azam — Thu, 20 Nov 2008 10:32:08 GMT

Hi ,

Thanks

Re: Unable to take backup

Md. Farhan A Azam — Tue, 27 Jan 2009 07:46:08 GMT

thnx