While it is not possible to reduce the retention period of a secure snapshot, it is possible to use the CLI to extend the retention period. This operation cannot be performed from PowerFlex Manager.
scli --set_snapshot_security \
--volume_name workload-volume-0-snap-1 \
--retention_period 30m –i_am_sure
This command will alter the retention period and resets the expiration time to 30 minutes from the time the command is run.
Attempting to set a retention period shorter than the remaining time already defined will receive an error: