HP XP P9500 Storage - Manual (Page 193)

Backups of the environments are required for the following situations:
¢
If an error occurs in the post-migration environment:
Reboot from the pre-migration environment, and then use it to
restore the post-migration environment. Alternatively, the backup of
the post-migration environment can also be restored.
¢
If you want to migrate from a boot disk environment to a local boot
disk environment, you can use the backup to return to the state
before creating the boot disk environment.
Removing HDLM
First, prepare one LU that has the same capacity and slice configuration as
that of the boot disk, for each mirror of the boot disk. They will become the
boot disks after the migration.
Excluding the Prepared LUs from HDLM Management
1
.
Use the dlmseconf utility to configure the HDLM device.
2
.
Remove the new LU from HDLM management.
For details, see
Using the HDLM Device Unconfiguration Function When
Performing a New Installation of HDLM on page 3-72 .
3
.
Reboot the host with the reconfiguration option specified.
# reboot -- -r
Configuring an Environment and then Removing HDLM
The following figure shows the device names, used in this section.
Creating an HDLM Environment
3-127
Hitachi Dynamic Link Manager User Guide for Solaris ®