You can use the OS GUI to identify snapshots that are
currently online.
Select Manage → Volumes.
Select the volume that might have an online snapshot.
Click the Snapshots tab. Online snapshots show up as green.
Determine whether the online snapshot is connected to a host (initiator). If a
host is actively using the snapshot, complete the operation that is in progress;
for example migrating or moving data.
Determine whether there is a reason to have the online snapshot in the
future:
Is the snapshot required by an application or script. If it is, take the
following actions:
Check the retention schedule to make sure the snapshot will be
removed at a future date.
Disconnect the snapshot from the host before the next snapshot
deletion operation is scheduled to occur.
Is this the only common snapshot between the upstream array and the downstream array. If
it is, then deleting the snapshot would cause the volume to need a full
re-seed.
If you do not need to maintain an online snapshot, perform the following
steps: