Using VM without DMP Enabled
8
VCS Application Note: Sun E10000 Dynamic Reconfiguration
7.
When you have successfully attached the CPU/Memory board, unfreeze any frozen
service groups:
#
hagrp -unfreeze
ser_grp_name
Repeat for each service group.
8.
Verify that VCS is still up and running.
Using VM without DMP Enabled
If you have the Volume Manager DMP feature disabled for some or all of the disks in the
shared storage, and you must perform DR operations within the cluster, we recommend
using the VCS DiskReservation agent to guard against data corruption. In the event of a
“split-brain” condition, that is, when two processors in a cluster can simultaneously write
to the shared storage, the DiskReservation agent ensures that only one processor has
access to the storage at one time. See the
VCS Bundled Agents Reference Guide
for
information on configuring the DiskReservation agent.
