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KB ID: 5955
Product: TS5020 Series | TS6000 Series
Snapshots for Shared folders and iSCSI volumes can be made immutable, which prevents them from being modified or deleted for a specified period, even by Administrators. This ensures snapshots are protected against unexpected data changes. Note1: The created snapshots/immutable Snapshots will be saved on the TeraStation. As with any file, if a drive or array malfunctions, all saved snapshots on that drive or array will be unrecoverable along with the data. Note2: When copying immutable snapshots to another shared folder or NAS device via backup, replication, or failover, they will be converted to normal snapshots, without the immutable attributes. Important: Plan accordingly when using the Immutable Snapshot feature. If the storage space is filled up by immutable snapshots, you will not be able to delete the immutable snapshots to free up storage space until the Immutable Protection Period expires or by using the Physical Reset Button. For more details and restrictions about Immutable Snapshots, please refer to the User Manual
See also: How to create Share Folder Snapshot on TeraStation
How to create iSCSI volume Snapshot on TeraStation
How to configure a Share Folder Snapshot Backup Job on TeraStation
How to configure an iSCSI Backup Job on TeraStation
Creating an Immutable Snapshot for Shared Folders 1. From Shared Folder list, click the number under “Snapshot” for the desired shared folder. 2. Click Create. 3. Check “Make immutable snapshot”, enter the Protection Period (1–60 days), and click OK. 4. Confirm the notice and click Yes. 5. A snapshot has been created. Click OK. 6. Snapshots with an “Expiration Date for Immutable Snapshots” are immutable. To schedule the immutable snapshot, click “Advanced Settings” at the bottom left. 7. Click “Enable” to enable the schedule snapshot. Configure the snapshot schedule, check “Make snapshots immutable”, and set the Protection Period. Note: Locked/immutable snapshots are retained even with archive settings are in effect. Important: Plan accordingly for the Immutable Snapshot schedule and the Immutable Protection Period. If the storage space is filled up by immutable snapshots, you will not be able to delete the immutable snapshots to free up storage space until the Immutable Protection Period ends or by using the Physical Reset Button.
Accessing the Share Immutable Snapshots using UNC path 1. Click the desired immutable snapshot. 2. Copy the UNC path using “Copy to Clipboard”. 3. Paste the UNC path into File Explorer then press Enter. The snapshot contents of the share will be available for access.
Creating an Immutable Snapshot for iSCSI Volumes 1. From iSCSI settings, select the volume and click Show Snapshot List. 2. Click Create to start creating a snapshot. 3. Check “Make immutable snapshot”, set the Protection Period (1–60 days), and click OK.
4. Confirm the notice and click Yes.
5. The snapshot progress will start. Click OK 6. After the snapshot progress finishes, the snapshot will be created on this iSCSI volume. Snapshots with an “Expiration Date for Immutable Snapshots” are immutable. To schedule the immutable snapshot, click “Advanced Settings” at the bottom left. 7. Click “Enable” to enable the schedule snapshot. Configure the snapshot schedule, check “Make snapshots immutable”, and set the Protection Period. Note: Locked/immutable snapshots are retained even with archive settings are in effect. Important: Plan accordingly for the Immutable Snapshot schedule and the Immutable Protection Period. If the storage space is filled up by immutable snapshots, you will not be able to delete the immutable snapshots to free up storage space until the Immutable Protection Period ends or by using the Physical Reset Button.
Deleting Immutable Snapshots A) Time Passed: Wait for the protection period to expire. B) Secure Erase feature: Erases All Data (Including user data!). See Performing the Secure Erase Command User Manual section. C) Physical Reset Button: Press the RESET button (retains user data). See Resetting the Administrator Password User Manual section.
NOTE : Actions apart from A. (Waiting for the time to pass) require physical access to the unit and cannot be done remotely.
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