I am using Unisphere for PowerMax 9.1.0.14 and VMAX250F, VMAX100K
I get a issue in one of the wizards when creating SG:
Storage -> Volumes -> select a volume and click Create SG

An error appears when executing a task:
Task failed
Starting Tasks ...
Compression is not supported on Symmetrix

In other wizards performing the same task no problems,
e.g. Storage -> Storage Group -> Create new SG, or Modify exist SG -> Volumes tab -> Add Volumes to SG

Unisphere 9.1.0.14 vApp 9.1.0.690
VMAX250F (SRP - Compression Disabled)
VMAX100K
HyperMax OS 5977.1131.1131