CMMVC9475E The node cannot be added because it does not support compressed volume copies in a standard storage pool.

Explanation
This error occurs when an attempt is made to add a node that does not support real-time
compression to an I/O group that includes volumes that use real-time compression. Certain node types
support compressed volumes only in data reduction pools.

User response
Complete one of the following tasks:
Retry the command, selecting an I/O group that does not include volumes that use real-time
compression in standard storage pools.

Decompress the compressed volumes in the I/O group, and then retry the command.

Migrate the compressed volumes to a data reduction pool, and then retry the command.