topic Re: change root disk -- urgent in Operating System - HP-UX

change root disk -- urgent

Rohak — Thu, 01 Apr 2010 13:41:12 GMT

We are going to change array and our vpar boots from san. how can we transfer our boot disk from array_1 to array_2 online. do we need to reboot the servers. We are going to adopt PVG rule. Could you please provide me the steps (example). rx8640.

Re: change root disk -- urgent

Michael Steele_2 — Thu, 01 Apr 2010 13:49:13 GMT

HI

Just lvextend every lvol. You know, follow the boot mirror procedures.

http://forums11.itrc.hp.com/service/forums/questionanswer.do?threadId=1254766

Note that the procedure is slightly different between Ia64 and Pa Risc.

Re: change root disk -- urgent

S. Ney — Thu, 01 Apr 2010 14:03:54 GMT

I'm not sure if this would apply for you but have you looked into DRD? I've attached the admin guide.

Re: change root disk -- urgent

Rohak — Thu, 01 Apr 2010 14:04:15 GMT

First mirror boot volume
extend vg and mirror all lvol
/dev/vg00/lvol1 , lvol2 and lvol3

then update boot record and break mirror and remove old disk.

11v3

Re: change root disk -- urgent

Manjit K — Thu, 01 Apr 2010 14:13:53 GMT

Since you mentioned its a vpar u need to provide "vparefiutil -u" to update the new disk path in vpar database after mirroring

Re: change root disk -- urgent

SoorajCleris — Thu, 01 Apr 2010 14:14:50 GMT

hi,

Check if the san boot is possible from the second array/FC card.

You can chose either boot disk mirroring procedure or DRD.

1. For mirroring, do vgextend, lvextend,then lvlnboot. modify the Vpar boot settings. Check if the par is booting from the second disk. If yes, reduce lv, VG (firstdisk). lvlnboot.

If you are using DRD.

2. Do DRD clone, DRD activate, reboot.
3. DRD remove.

ensure , you have latest DRD patches.

Regards,
Sooraj