Applies to ONTAP 9 Snapshot Issue The SCSI UNMAP feature is enabled on a SAN client that connects to a LUN The LUN is unmounted and mounted Space is reclaimed using UNMAP Monitoring software alerts of...Applies to ONTAP 9 Snapshot Issue The SCSI UNMAP feature is enabled on a SAN client that connects to a LUN The LUN is unmounted and mounted Space is reclaimed using UNMAP Monitoring software alerts of greater than 90% snap reserve space usage for the volume