topic Re: Spliting a mirror using a IR Disk volume (rx2660 sasmgr) in Operating System - HP-UX

Spliting a mirror using a IR Disk volume (rx2660 sasmgr)

Hugo F Martinez — Fri, 26 Nov 2010 14:32:28 GMT

In the past while using Mirror/UX I used to split the vg00 during a masive patch install, is there a way to split a IR Disk volume without loosing any data? If there is, how do I merge the mirror later?

Best regards,
Hugo

Re: Spliting a mirror using a IR Disk volume (rx2660 sasmgr)

Torsten. — Fri, 26 Nov 2010 14:33:51 GMT

IMHO the only way:
shutdown and pull a disk.

Better method:

use DRD!

Re: Spliting a mirror using a IR Disk volume (rx2660 sasmgr)

Hugo F Martinez — Fri, 26 Nov 2010 14:45:58 GMT

Thanks so much! The answer was simplier than I thought!

Re: Spliting a mirror using a IR Disk volume (rx2660 sasmgr)

Torsten. — Fri, 26 Nov 2010 14:54:11 GMT

As said, DRD is the better option. You create a clone, patch the clone and in a downtime window you just boot the patched OS - done in a couple of minutes.
In case of problems you just boot the original OS.

Re: Spliting a mirror using a IR Disk volume (rx2660 sasmgr)

Emil Velez — Sat, 27 Nov 2010 00:08:37 GMT

you cannot split the mirror since the OS has no visibility of the mirroring. It is done by the RAId controller that some RX boxes have and all integrity blade systems have.

DRD can be used with a local disk or a san disk if you have additional local disks or san disks. Please make sure that you or a monitoring tool is monitorng the syslog to detect a RAID disk failure which will not cause you any problems. Using the RAID controller (which I think is a option on some RX boxes) is a great option to optimize the I/O performance of the HPUX operating system.

Re: Spliting a mirror using a IR Disk volume (rx2660 sasmgr)

P Arumugavel — Sat, 27 Nov 2010 07:38:03 GMT

Hi,

Find in bellow links.

http://forums11.itrc.hp.com/service/forums/questionanswer.do?threadId=1396219

http://forums13.itrc.hp.com/service/forums/questionanswer.do?admit=109447627+1290843100788+28353475&threadId=1450491

http://forums13.itrc.hp.com/service/forums/questionanswer.do?admit=109447627+1290842609692+28353475&threadId=1215857

http://forums13.itrc.hp.com/service/forums/questionanswer.do?admit=109447627+1290843062450+28353475&threadId=1289065

Regds...