CMMVC8802E The command failed because the parent pool contains an unencrypted external MDisk.
Explanation
An attempt was made to create an encrypted child pool where the parent pool has an
unencrypted external MDisk and at least one I/O group contains hardware that is not reported as
encryption capable. It is not possible for non-encryption-capable nodes to perform encrypted
operations.
User response
Either remove the non-encryption-capable I/O group members from the cluster or
create the pool as not encrypted.