
Chapter 11. Performing Live Partition Mobility 439
Figure 11-3 Memory region size
Storage and hdisk reserve policy
Only physical volumes (LUNs) visible to the VIOS as a hdisk assigned to an
LPAR can be used in mobile partitions. The same physical volumes must also be
visible to both the local and remote VIOS systems. The reserve policy of the
hdisk must be changed from the default single_path to no_reserve. The reserve
policy is changed on an hdisk from both VIOS systems. The lsdev -dev hdisk#
-attr | grep reserve command can be used to review the current policy
setting. The chdev command is used to change the attribute of the hdisk.
Example 11-4 shows hdisk1 with the default reserve policy of single_path, the
chdev command being issued, and the new reserve policy of no_reserve.
Example 11-4 Changing a hdisk reserve policy
$ lsdev -dev hdisk1 -attr | grep reserve
reserve_policy single_path Reserve Policy
True
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