HA Alternate boot path on HPUX

[Nappy_1]

I have an hpu11.31 with 2 disks in vg00 c0t0d0 and c0t0d1

c0t0d0 is the primary one and c0t0d1 is the alternate one.

do i need to set an HA Alternate boot disk? and what it should be in this case

[Steven E. Protter · Accepted solution]

Shalom,

lvlnboot -v

Lets see if its already defined.

http://www.hpux.ws/?p=112
Integrity mirroring.

SEP

[Nappy_1]

here is lvlnboot -v
lvlnboot -v
Boot Definitions for Volume Group /dev/vg00:
Physical Volumes belonging in Root Volume Group:
/dev/dsk/c0t0d0 (0/0/0/2/0.0.0) -- Boot Disk
/dev/dsk/c0t0d1 (0/0/0/2/0.0.1) -- Boot Disk
Boot: lvol1 on: /dev/dsk/c0t0d0
/dev/dsk/c0t0d1
Root: lvol3 on: /dev/dsk/c0t0d0
/dev/dsk/c0t0d1
Swap: lvol2 on: /dev/dsk/c0t0d0
/dev/dsk/c0t0d1
Dump: lvol2 on: /dev/dsk/c0t0d0, 0

[Michael Steele_2]

Hi

This is a depends question. It depends on

a) is this a stand alone machine?
b) is this a hpvm host?
c) is this a hpvm guest?

So I need a little information. The easy answer for a) is, use the setboot command. The -a option is always for the cdrom now, instead the -h option is used for a alternate boot disk.

For vmhosts and vmguests, there are hyperthreading issues.

[Torsten.]

The order is primary, HA alternate, alternate.

With 11.31 you should use the "new" format, e.g.

/dev/disk/disk1

[Nappy_1]

Hi Michael,
this is a stand alone machine

you sad that the alternate is the cdrom. so what happens is the primary disk fails? does the server boots from the HA alternate path?

[Michael Steele_2]

Hi

No. It goes to the minus H. Minus a is last.

[Michael Steele_2]

Note: Assign 0 to 10 points to all responses and close thread when ready.

[Nappy_1]

Michael,
could you explain please what do you mean by "No. It goes to the minus H. Minus a is last."

What is the boot order?

[Michael Steele_2]

Priority.

-p, primary boot disk, first
-h, alternate boot disk, 2nd
-a, cdrom, 3rd