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08-28-2012 04:09 PM
08-28-2012 04:09 PM
fbackup shows 0 bytes written, but there are no errors
Greetings
Running fbackup (hp-ux 11.11), the session runs for a while, and completes but indicates 0 bytes written to output: The indexfile is created and shows the files it should. Is it really working?
Saturn# fbackup -f jupiter:/dev/rmt/1m -g graph_test -I indextest082812
fbackup(1601): could not access -i/-e file /s03
fbackup(1601): could not access -i/-e file /u20
fbackup(1601): could not access -i/-e file /u21
fbackup(1601): could not access -i/-e file /u22
fbackup(1601): could not access -i/-e file /u32
fbackup(1601): could not access -i/-e file /u33
fbackup(1601): could not access -i/-e file /u34
fbackup(1601): could not access -i/-e file /v1
fbackup(1601): could not access -i/-e file /v2
fbackup(1601): could not access -i/-e file /v3
fbackup(1601): could not access -i/-e file /iuxcdrom0
fbackup(1004): session begins on Tue Aug 28 15:57:44 2012
fbackup(3309): WARNING: unable to read a volume header
fbackup(3024): writing volume 1 to the output file jupiter:/dev/rmt/1m
fbackup(3055): total file blocks read for backup: 391311
fbackup(3056): total blocks written to output file jupiter:/dev/rmt/1m: 0
fbackup(1030): warnings encountered during backup
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08-29-2012 02:22 AM
08-29-2012 02:22 AM
Re: fbackup shows 0 bytes written, but there are no errors
Perform the following:
1. Check if the users can access (read/write access) those data files where warning occured.
2. Make sure if the tape drive had enough free space.
3. Check if there are any cron jobs or any other process accessing and modifying those data file during the time of backup.
4.If so stop the cron jobs or any other process which is accessing those data file and perform the fbackup and check if it works without warnings this time..
Hope this helps..
Pradeep
I am an HP Employee
A quick resolution to technical issues for your HP Enterprise products is just a click away HP Support Center Knowledge-base
See Self Help Post for more details
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08-29-2012 06:26 AM
08-29-2012 06:26 AM
Re: fbackup shows 0 bytes written, but there are no errors
I think the only warning was no volume header. Root ran the backup and has access to all. The tape is a clean LTO2 (200GB) and this test was 300M - so space was not an issue. Could be denied write by the remote host? The root user from the source is listed in the .rhosts file on the remote host.
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08-29-2012 09:21 AM
08-29-2012 09:21 AM
Re: fbackup shows 0 bytes written, but there are no errors
>Could be denied write by the remote host?
I would think that would stop it with an error.
Have you tried using frecover to list what's on the tape?
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09-02-2012 10:43 AM - edited 09-02-2012 10:45 AM
09-02-2012 10:43 AM - edited 09-02-2012 10:45 AM
Re: fbackup shows 0 bytes written, but there are no errors
>> fbackup -f jupiter:/dev/rmt/1m -g graph_test -I indextest082812
f>> backup(1601): could not access -i/-e file /s03
fbackup changes from a sophisticated backup tool to a primitive one when you specify a remote tape drive. fbackup loses information about the drive by using rmt on the remote system. As Dennis mentioned, use frecover -I /tmp/fbackup.idx -f /dev/rmt/1m
or
frecover -I - -f /dev/rmt/1m | more
to see the contents. Is the graph_test file in the correct format? That is:
i /s03
i /u20
i /u21
etc
Bill Hassell, sysadmin