Managing Systems and Workgroups: A Guide for HP-UX System Administrators

Administering a System: Managing Disks and Files
Managing File Systems
Chapter 6 633
Step 9. Add a line to /stand/bootconf for the new boot disk using vi or another
text editor:
vi /stand/bootconf
l /dev/dsk/c0t3d0
where l denotes LVM.
Once you have created mirror copies of the root, boot, and primary swap
logical volume, should any of these logical volumes fail, the system can
use the mirror copy on the other disk and continue. When the failed disk
comes back online, it will be automatically recovered, provided the
system has not been rebooted.
If the system is rebooted before the disk is back online, you will need to
reactivate the disk and update the LVM data structures that track the
disks within the volume group. You can use vgchange -a y even though
the volume group is already active.
For example, you can reactivate the disk using:
vgchange -a y /dev/vg00
As a result, LVM scans and activates all available disks in the volume
group, vg00, including the disk that came online after the system
rebooted.