ANE4178W   Compression is currently enabled, but the virtual machine control files for 'virtual-machine-name' will not be compressed because client-side deduplication is not being used for the management class default or specified by the -vmctlmc option for 'vm-ctl-mgmt-class-name'.

Explanation

Virtual machine control files are not compressed because data is stored in a storage pool that is not enabled for client-side data deduplication.
The virtual machine control files are not compressed during the backup processing unless data is stored in a storage pool that is enabled for client-data deduplication.

System action

Backup continues, and control file data is not compressed.

User response

Ensure that the storage pool is enabled for client-side data deduplication: run "q stg <pool name> f=d" and verify that the value of "Deduplicate Data?" is "yes". Ensure that client-side data deduplication is enabled on the server. To enable client-side data deduplication, use the DEDUPLICATION parameter on the REGISTER NODE or UPDATE NODE server command. Set the value of the parameter to CLIENTORSERVER. The value of the DEDUPLICATION option on the client must be set to YES. You can set the DEDUPLICATION option in the client options file, in the preference editor of the Tivoli Storage Manager client GUI, or in the client option set on the Tivoli Storage Manager server. Use the DEFINE CLIENTOPT command to set the DEDUPLICATION option in a client option set. To prevent the client from overriding the value in the client option set, specify FORCE=YES. Ensure that the deduplication parameter for the node is "ClientOrServer": The value of the DEDUPLICATION option on the client must be set to YES.