Split the OS Mirror & Re Mirroring

[Eric Jacklin]

Hi

I would like to know two things

1) I Want to Split(Break) Os Mirroring to do a Patch Installation on the single disk.
(what is the procdedure to do this ?)
2) after patching how to remirror/resync the Split mirror disk
(what is the procdedure to do this ?)

[Jeeshan]

Which OS version and platform u r looking for?

[Eric Jacklin]

HP UX 11.11

[Jeeshan]

looks like a brief way what u want

http://forums12.itrc.hp.com/service/forums/questionanswer.do?admit=109447627+1211648661755+28353475&threadId=1193862

[Fadia Almarei]

*if it is software mirror just specify this disk belong to what volume group and what is the logical volumes found on this volume group
1-vgdisplay -v /dev/vg0x
2-then do th following command for all logical volumes

lvreduce -m 0 /dev/vg0x/lvolx /dev/dsk/cxtxdx
:this disk is the mirrored disk you want to split mirroring on
* if it hardware mirroring and you have itanim servers go to EFI console and d the split from it depending on the raid controller you have.

BR;
Fadia

[Fadia Almarei]

and to remirror again just do this command again for all logical volume you use before
and for the same disk
lvextend -m 1 /dev/vg0x/lvolx /dev/dsk/cxtxdx


then backup the volume group vgbackup /dev/vg0x

[Nguyen Anh Tien]

I highly recommend you use DRD (Dynamic Root Disk), this sw is free to use and provide what you need.
Access http://docs.hp.com/en/DRD for more detail
HTH
Tienna

[Dennis Handly]

>Tienna: I highly recommend you use DRD

This isn't available for the Jit's 11.11.

[Nguyen Anh Tien]

Yes, It is not for 11.11
DRD is only used for

* HP-UX 11i Version 2 (11.23) September 2004 or later
* HP-UX 11i Version 3 (11.31)