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Booting using Mirror.

 
ankitj1983
Frequent Advisor

Booting using Mirror.

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
5 REPLIES
Patrick Wallek
Honored Contributor

Re: Booting using Mirror.

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.
Johnson Punniyalingam
Honored Contributor

Re: Booting using Mirror.

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)
Problems are common to all, but attitude makes the difference
ankitj1983
Frequent Advisor

Re: Booting using Mirror.

Hello Patrick,

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

Regards

Ankit
ankitj1983
Frequent Advisor

Re: Booting using Mirror.

Hello Patrick,

I understood how to set the low quorum.

Closing this tread.

Regards

Ankit
ankitj1983
Frequent Advisor

Re: Booting using Mirror.

closing