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тАО03-08-2007 12:18 AM
тАО03-08-2007 12:18 AM
Warnings while displaying vg
I had restored a HP-UX 11.23 sytems using make_tape_recovery tape
I got few errors related to physical disks for vg00 and other lvm volume groups , like
Warning: couldn't query physical volume "/dev/dsk/c8t0d2"
The specified path does not correspond to physical volume attached to
this volume group
Then I performed following steps to correct the error
# vgchange -a n vg00
# mv /etc/lvmtab /etc/lvmtab_08032007
# vgscan -a -v
# vgchange -a y -q n vg00
This has solved my problem.
I want to know, why earlier this problem has occured and how has it got corrupted in the begining itself. Can we rely on make_tape_recovery for system recovery? Do we need to perform the steps everytime we do a recovery?
is there any formal explanation of make_tape_recovery backup and restoration?
thanks in advance for your time
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тАО03-08-2007 01:38 AM
тАО03-08-2007 01:38 AM
Re: Warnings while displaying vg
Check out...
System Recovery
http://docs.hp.com/en/5991-6440/ch12s02.html
Backing Up Your System
http://docs.hp.com/en/5187-2725/ch04s05.html
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тАО03-08-2007 01:44 AM
тАО03-08-2007 01:44 AM
Re: Warnings while displaying vg
I think if the steps you related above were performaed before the ignite backup thre would be no message at all. There was a inconsistency in the lvmtab file and that was noted in the log file of the original make_tape_recovery backup.
To insure a system can be restored Ignite is very picky about lvm issues and often fails at backup time due to inconsistencies.
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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тАО03-08-2007 01:46 AM
тАО03-08-2007 01:46 AM
Re: Warnings while displaying vg
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тАО03-08-2007 02:30 AM
тАО03-08-2007 02:30 AM
Re: Warnings while displaying vg
the tape issue got resolved after creating the device files via SAM, the backup was taken earlier when system was without problem.
Steven
when i take the backup using make_tape_recovery there were no errors, but I am not able to understand what could have jumbled the lvm configuration, also i would like to mention that /etc/hosts and netconf files were also disturbed.
/etc/hosts was without any info in it whereas netconf file had some line breaks resulting LAN failure, after manully updating the file and stop - start of net LAN came back