CMMVC9447E The command failed because there is not enough memory available for the FlashCopy® 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 FlashCopy services.

User response
Use the chiogrp -feature flash command to increase the amount of memory that
is available for FlashCopy services in the I/O group,
and then retry the command.