topic Re: Booting using Mirror. in Operating System - HP-UX

Booting using Mirror.

ankitj1983 — Tue, 20 Apr 2010 02:22:52 GMT

Hello Techies,

Suppose i am having my root vol vg00 mirrored.

During booting one disk fails will the system boot , Crashed or hanged.

Regards

Ankit

Re: Booting using Mirror.

Patrick Wallek — Tue, 20 Apr 2010 02:29:35 GMT

If you set up the mirror correctly, it should boot.

When you set up the mirror you must make absolutely certain that BOTH disk have the boot string of "hpux -lq" so that the system will boot without a quorum (quorum = 1/2 of the disks in the mirror set + 1).

If you do not have the boot string set correctly then the system will fail to boot because a quorum of disks is not available.

This assumes that your vg00 consists of 2 disks.

Re: Booting using Mirror.

Johnson Punniyalingam — Tue, 20 Apr 2010 02:31:58 GMT

what OS version .?

uname -a

>>During booting one disk fails will the system boot , Crashed or hanged.<<

In this case,

(By pressing any key)
Interrupt ISL>

ISL>sea -> will search bootable devices are listed chose (e.g P0,P1,P2)

ISL>bo p0 (or) bo sec (or) bo HWPATH (0/0/0/1)

Re: Booting using Mirror.

ankitj1983 — Tue, 20 Apr 2010 03:00:40 GMT

Hello Patrick,

Thanks for your reply.Let me know how to set the Quorum of the disk.

Regards

Ankit

Re: Booting using Mirror.

ankitj1983 — Tue, 20 Apr 2010 03:33:52 GMT

Hello Patrick,

I understood how to set the low quorum.

Closing this tread.

Regards

Ankit

Re: Booting using Mirror.

ankitj1983 — Tue, 20 Apr 2010 06:32:59 GMT

closing