Very Computer

by **Ron Zcor** » Wed, 27 Feb 2002 08:02:00

I had to remove disks from rootdg diskgroup (Array was being removed). Disks
from the array were used to make 3rd mirrors for the root and swap volume.

Removed the 3rd mirrors (plexes) using vxplex
vxplex -o -rm dis opt

Removed the diskmedia from the disk group using vxdg
vxdg -g rootdg rmdisk root03

Removed disk from volume manager control using vxdisk:
vxdisk rm c4t96d0

At the time I wasn't thinking there was anything special about root volumes -
Now
I am begining to wonder. How does one identify, or unidentify, boot disks to
the system?

Any other steps that I need to be aware?

Thanks for any advice

by **savares** » Wed, 27 Feb 2002 09:39:32

You're boot disk is determined in the nvram. You can see what disk is the
disk you are booting from by using the "eeprom nvramrc" and then checking
/dev/dsk to see what disk that is. If you removed that disk then at the OK
prompt you can do a

alias disk /devices....

where the /devices portion is the path to the new boot disk...Usually
veritas creates an alias for all disks the mirror the rootdisk, all you
need to do is copy it to the "disk" alias.

Scott

> I had to remove disks from rootdg diskgroup (Array was being removed). Disks
> from the array were used to make 3rd mirrors for the root and swap volume.
> Removed the 3rd mirrors (plexes) using vxplex
> vxplex -o -rm dis opt
> Removed the diskmedia from the disk group using vxdg
> vxdg -g rootdg rmdisk root03
> Removed disk from volume manager control using vxdisk:
> vxdisk rm c4t96d0
> At the time I wasn't thinking there was anything special about root volumes -
> Now
> I am begining to wonder. How does one identify, or unidentify, boot disks to
> the system?
> Any other steps that I need to be aware?
> Thanks for any advice

Very Computer

Volume Manager and root volumes

Volume Manager and root volumes

Volume Manager and root volumes