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HPE MSA 2040/2042 and HPE MSA 1040 SAN Storage and HPE P2000 G3 MSA Array Systems have the ability to schedule tasks to take snapshots for a volume on an array. This process is known as a local snapshot. A user can schedule a task to take the snapshots according to a user-defined schedule. A scheduled task has a snapshot retention count parameter that specifies the number of snapshots created to retain. When using the scheduled task for snapshots, the user may expect that when a new snapshot exceeds the retention count limit, the oldest snapshot with the same prefix is deleted. For snapshots created by a schedule, the oldest snapshot is not deleted but remains on the system. If a user does not want to exceed the snapshot limit, the oldest snapshots will need to be deleted manually. For snapshots used in a local replication, where the destination volume is on the same array, the scheduled task to delete the oldest snapshot will function correctly, and the retention count is maintained as defined by the user. No further user action is needed.
This issue affects the following HPE MSA products: HPE MSA 1040 SAN Storage HPE MSA 2040 SAN Storage HPE MSA 2042 SAN Storage HPE P2000 G3 MSA Array Systems
For snapshots created by a schedule, a user will need to manually delete the oldest snapshots. This task cannot be scheduled or set using the retention count. When you delete a snapshot, all data uniquely associated with that snapshot is deleted, and associated space in the snap pool is freed for use. Snapshots can be deleted in any order, regardless of the order in which they were created. To delete a snapshot in SMU: Verify that hosts are not accessing the snapshots that you want to delete. In the Configuration View panel, right-click either the system, a Vdisk, a main volume, or a primary volume and then select Provisioning > Delete Snapshot . In the main panel, select the snapshots to delete. Click Delete Snapshot(s) . Click OK to continue; otherwise, click Cancel . If you clicked OK , a processing dialog appears. If the task succeeds, an overview panel and a success dialog appear. Click OK . As processing completes, the deleted items are removed from the Configuration View panel. To delete a snapshot in the CLI: Delete standard snapshots s1, s2, and s3: # delete snapshot s1,s2,s3 RECEIVE PROACTIVE UPDATES : Receive support alerts (such as Customer Advisories), as well as updates on drivers, software, firmware, and customer replaceable components, proactively in your e-mail through HPE Subscriber's Choice. Sign up for Subscriber's Choice at the following URL: Proactive Updates Subscription Form
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