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тАО08-09-2010 04:19 AM
тАО08-09-2010 04:19 AM
hp-ux 11.31: we have a root disk at c0t6d0 that is mirrored with 'vxrootmir' to a disk in c3t6d0. after the mirror was done, as a test, we shut down the system and pulled out the source root disk from c0t6d0. booting did not work! then we pulled out the mirror from c3t6d0 and moved it to c0t6d0. booting now works! as a second test, we now added another disk at c3t6d0 to test disk-replacement. veritas automatically added a diskgroup - the name ends with loopback - but puts the disk in a foreign state. we are not able to initialize that disk (tried 'vxdisksetup -iB c3t6d0 privlen=1024') or import the disk group.
2 questions:
- how to solve the problem
- is there no way to boot from the mirror without physically moving the disk?
best regards and thanks for your time,
fred
Solved! Go to Solution.
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тАО08-09-2010 04:23 AM
тАО08-09-2010 04:23 AM
Re: boot from mirror
see (the properly most posted document...)
http://docs.hp.com/en/5991-1236/When_Good_Disks_Go_Bad.pdf
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тАО08-09-2010 04:47 AM
тАО08-09-2010 04:47 AM
Re: boot from mirror
thanks for your answer, but it is a veritas managed disk. is your link the right document for veritas volumes?
sorry for my ignorance in this case, but you suggest to make the third/lastly added disk bootable?
thanks
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тАО08-09-2010 04:57 AM
тАО08-09-2010 04:57 AM
Re: boot from mirror
Did you mirror the disk with vxvm tools (vxrootmir) or did you just something like a "dd"?
Hope this helps!
Regards
Torsten.
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тАО08-09-2010 05:00 AM
тАО08-09-2010 05:00 AM
Re: boot from mirror
Hope this helps!
Regards
Torsten.
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There are only 10 types of people in the world -
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тАО08-09-2010 05:05 AM
тАО08-09-2010 05:05 AM
Re: boot from mirror
> You obviously belong to the less than 1% of
> users using vxvm as boot disk ... :-)
I was not aware of this! So are we doing a bad thing here?
> Did you mirror the disk with vxvm tools
> (vxrootmir) or ...
Correct: we used 'vxrootmir -v c3t6d0' to create the mirror.
I found this thread looking like my problem, but not yet tried those actions:
http://forums11.itrc.hp.com/service/forums/questionanswer.do?threadId=1005490
Best regards,
Frederik
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тАО08-09-2010 05:12 AM
тАО08-09-2010 05:12 AM
SolutionSee "man vxrootmir" also.
Hope this helps!
Regards
Torsten.
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тАО08-09-2010 05:59 AM
тАО08-09-2010 05:59 AM
Re: boot from mirror
/BR
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тАО08-09-2010 10:26 AM
тАО08-09-2010 10:26 AM
Re: boot from mirror
>> users using vxvm as boot disk ... :-)
> I was not aware of this! So are we doing a bad thing here?
Not a bad thing, just very unusual. LVM is a much simpler method for volume management and most HP-UX systems using VxVM were setup by sysadmins from Sun or other platforms where VxVM was the only viable option. VxVM works but there is a much smaller number of sysadmins that know VxVM. Whether LVM or VxVM, setting up a mirrored boot disk always requires special commands to take care of the boot area.
Bill Hassell, sysadmin