vgextend -z gives 'operation not supported'

[Jaris Detroye]

I have MirrorDisk/UX installed, my entire vg00 is mirrored. I would like to provide a hot spare as well. But, the
'vgextend -z /dev/vg00 /dev/dsk/c0t5d0'
command fails with "operation not supported".
All my vg00 lvol's are 'strict' allocation and the target disk is the same size as my boot disks.

Any ideas?

[Hai Nguyen_1]

Your syntax is not right. It should have read:

# vgextend -z y /dev/vg00 /dev/dsk/c0t5d0

Hai

[Ken Hubnik_2]

You forgot the y in the command

[Jaris Detroye]

No i forgot the 'y' in the message, I am using it in the command and it is not working.

[Ken Hubnik_2]

Other than insuring that you are a single-node cluster and strict using MirrorUX. I have found the following note.

Note that starting at HP-UX 10.30, any volume group activated in shared mode
(vgchange -a s) will not succeed if logical volumes with mirroring is
present. In this case, LVM hot sparing is not supported.

[Jaris Detroye]

Not using ServiceGuard, and volume group vg00 is not shared.

[Darrell Allen · Accepted solution]

2 guesses...

Did you pvcreate /dev/dsk/c0t5d0?

Are you mixing disks on an HP-IB interface with any on another type of interfaces?

Darrell

[Jaris Detroye]

Cudos for pointing at the right area.

I used 'pvcreate -B' and this was the problem, if I remove the '-B' all is well.

I assume this means that while it is a hot spare for the root vg it can not be used as a boot device even if LVM mirrors over to it due to a primary drive failure.