removing mirrored drive

[june54]

Had hdisk1 crash the drive was mirroed . Bad drive was replaced now I have /usr in stale mode . I have tried reducevg rootvg and the PVID it would not remove . What do i need to do ........

 

[bi]

Have you backed up your system lately? Was all of rootvg mirrored?

Have you tried rmdev -l <PVID> -d?

Then bring the new disk into rootvg and remirror, including doing a bosboot.

 

[june54]

Thanks for the quick response . We have a 2 week olds mksysb and it my understanding all of rootvg was mirrored .
I tried your command no luck .. At this point they are going to re-install the O/S .. I was trying to avoid that route .. Do you have a step by step procedure remove a mirrored disk drive from the system ... The way Iam doing it is not correct ...

Thanks for your help .....

 

[flatwater]

If the disk is completely mirrored, then to replace hdisk1 from an hdisk0/hdisk1 mirror:

1. unmirror rootvg hdisk1 (remove copies from disk)
2. chpv -c hdisk1 (clear boot image so it doesn't try to boot)
3. bosboot -ad /dev/hdisk0 (create new boot image)
4. bootlist -m normal hdisk0 (boot only from hdisk0)
5. reducevg rootvg hdisk1 (remove hdisk1 from the rootvg)
6. rmdev -dl hdisk1 (remove device from ODM)
7. physically remove/replace bad disk
8. mirrorvg rootvg (by default creates 2 copies onto replaced disk)
9. bosboot -ad /dev/ipldevice (new boot image - ipldevice can be used instead of the actual disk)
10. bootlist -m normal hdisk0 hdisk1 (reset bootlist for both disks)

 

[june54]

THANKS A Million .... Have a great DAY !!!!