CMMVC9448E The command failed because there is not enough memory available for the Mirroring feature in I/O group ID [%1].

Explanation
This error can occur when an attempt is made to expand a volume but insufficient memory is
available for volume mirroring operations.

User response
Use the chiogrp -feature mirror command to increase the amount of memory that
is available for volume mirroring operations in the I/O group, and then retry the command.