The default snapshot (DSS) runs on volumes with snapshot reserve at anything other then Zero and do not have a snapshot scheduled setup.  If you set the snapshot reserve on the volumes to zero (0) DSS will not attempt to create the snapshot for a volume. Also at the Group CLI you can enable/disable or set the time of day that the default snapshot runs: GrpName> grpparams default-snapshot-sched  ?disable              - Disables the default snapshot schedule.enable               - Enables the default snapshot schedule.show                 - Displays the current values of the default snapshot schedule.start-time           - Set the default snapshot schedule's start time. Also note that if setting the snapshot reserve to zero you will return the space reserved for the snapshot back to the pool.
hello,  after an update of equallogic ps6100 firmware (from 7.1.2 to 8.0.5) , on 2 volumes of the array there is an snapshot planification à midnight (**default**) which is operate. I want to delete this schedule but i don't found where she is set. Even in using cli.  Thnaks for your help  Cordialy  MARREC C. 
schedule planification of volume snapshot afer an update of firmaware