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тАО10-03-2006 01:57 AM
тАО10-03-2006 01:57 AM
fbackup error
I have a problem when tryng to make backup with my server.
I'm using this command:
fbackup -0nvi /home -f /dev/rmt/c3t3d0BEST 1>>/home/root/sauve.log
Everithing looks going well but in my log file I have this error message:
fbackup(3205): WARNING: unable to read a volume header
fbackup(3024): writing volume 1 to the output file /dev/rmt/c3t3d0BEST
Does anybody have an idea?
I'm using HP DD-3 data cartridge
Thanks in adavance
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тАО10-03-2006 02:01 AM
тАО10-03-2006 02:01 AM
Re: fbackup error
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тАО10-03-2006 02:05 AM
тАО10-03-2006 02:05 AM
Re: fbackup error
mt -t /dev/rmt/c3t3d0BESTn rew
What is "1" in your fbackup command before you redirecting to log file?
fbackup -0nvi /home -f /dev/rmt/c3t3d0BEST 1>>/home/root/sauve.log
May be it is not correct syntax?
Try this one.
fbackup -0nvi /home -f /dev/rmt/c3t3d0BEST > /tmp/sauve.log
Also you are trying to save log file in /home/root which falls under /home in the fbackup. Try to take backup log somewhere else other than /home.
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тАО10-03-2006 02:12 AM
тАО10-03-2006 02:12 AM
Re: fbackup error
Commonly this happens because the tape drive heads are dirty and/or the tape has been used too many times.
I recommend cleaning the heads and/or trying a new tape.
Not being abel to read the volume header does not effect the integrity of the backup.
Using the tape too many times or with dirty heads can fatally effect the backup integrity.
SEP
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
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тАО10-03-2006 02:15 AM
тАО10-03-2006 02:15 AM
Re: fbackup error
extracting from Bill's answer in http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=316566
"Now it is VERY important to note that fbackup will always report the message "unable to read a volume header" on a new tape or an old tape where the beginning of the tape is not in fbackup format. This message means: "This tape was not previously recorded using fbackup" That's not an error, just information.
"
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тАО10-03-2006 04:05 AM
тАО10-03-2006 04:05 AM
Re: fbackup error
Bill Hassell, sysadmin
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тАО10-03-2006 01:21 PM
тАО10-03-2006 01:21 PM
Re: fbackup error
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тАО10-04-2006 03:49 AM
тАО10-04-2006 03:49 AM
Re: fbackup error
> I used to advise my operation folks to retire the tape instead of figure out to extent beyound 100 times.
> The is way to extent it in fbackup but cannot recall.
There are two methods to change the count:
1. Brute force -- tar something small onto the tape. The counter disappears and the next fbackup restarts the counter from 000.
2. Recommended way: use a config file (man fbackup). This is actually mandatory for any tape drive except old 1/2" reel-to-reel tapes. The entry is maxvoluses and for DDS tapes, 200 is a reasonable number. However, for much better performance, use this config file in fbackup scripts:
blocksperrecord 4096
records 64
checkpointfreq 4096
readerprocesses 6
maxretries 5
retrylimit 5000000
maxvoluses 200
filesperfsm 2000
It is specified with the -c option.
Bill Hassell, sysadmin
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тАО10-04-2006 08:45 PM
тАО10-04-2006 08:45 PM
Re: fbackup error
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тАО10-04-2006 09:34 PM
тАО10-04-2006 09:34 PM
Re: fbackup error
seems all the answers agree.
If you are happy with the answers please read:
http://forums1.itrc.hp.com/service/forums/helptips.do?#28