LSU

The Logical Storage Unit List displays the following information for all LSUs on the DXi9000 Series:

You can enable the OST WORM (Write Once, Read Many) feature in both newly created and existing OST LSUs (Logical Storage Units). This new DXi capability safeguards all data on WORM-enabled LSUs from being encrypted, modified, or deleted within a user-configured timeframe.

Note: OST WORM images are immutable (cannot be changed) as soon as they are created and indelible (cannot be deleted) until the backup policy retention period expires, unless extended.

Data saved on these LSUs is protected in two ways:

• Immutability: WORM-enabled backup images are read-only and cannot be modified, corrupted, or encrypted following backup.

• Indelibility: WORM-enabled backup images cannot be deleted before expiration, protecting share data against malicious deletion.

Add an LSU to a storage server to present the storage capacity of the DXi9000 Series as an LSU that is compatible with backup applications that support OST. You can add an LSU with a specific capacity, or you can add an LSU that uses the available capacity of the DXi9000 Series.

Note: You must create a storage server before you can add an LSU. See Adding a Storage Server.

To add an LSU to a storage server:

1. Click Add.

   The Add Logical Storage Unit page displays.

   

2. Enter information about the LSU.

   Storage Server	Select the storage server that will contain the new LSU.
   Available Capacity	(Recommended for best performance) Select this option to add an LSU that uses the available capacity on the system. You cannot add an available capacity LSU to a storage server that already contains an LSU. Also, if you add an available capacity LSU to a storage server, you cannot add additional LSUs to that same storage server. Note: After you add an LSU that uses the Available Capacity option, you cannot change the LSU to use the Specific Capacity option. Instead, you must delete the LSU, then add a new LSU and choose the Specific Capacity option. See Deleting an LSU.
   Specific Capacity	Select this option to specify the physical capacity of the LSU, and then enter the following information. LSU Name - Enter the name of the LSU. Physical Capacity - Enter the physical capacity of the LSU (1 to 1048576 GB). Note: Specifying a specific size limits the size of the LSU in User Bytes. Quantum recommends setting LSUs to maximum size (1048576 GB) because spanning them on a backup is not possible.
   Description	(Optional) Enter a description of the LSU. You can define the LSU name or data content.
   Enable WORM	(Optional) Complete the following steps to enable and set lock times for Write Once, Read Many protection for the new LSU: Select the Enable WORM checkbox to enable OST WORM for the LSU. Enter the Minimum lock time (indelible end time) to set the minimum time in seconds to activate the feature, following your saving and applying the OST Wizard screens at Step 4, Confirm. Enter the Maximum lock time (indelible end time) to set the maximum time in seconds to protect the data in the WORM-enabled OST LSU.
   Enable Secure Snapshots	Check this box to enable or disable Secure Snapshots for this LSU. See Secure Snapshots, Enabling Systemwide Secure Snapshots and Enabling Secure Snapshots for Individual Shares.
   Snapshot Retention (days)	When snapshots have been enabled for this LSU, enter the number of days to retain each snapshot for this LSU. Note: Once the retention period has been set, it can be extended but never reduced.
   Enable Cloud	Check this box to enable Cloud Share for this LSU. Additional Information To enable Cloud Share on the selected LSU, Cloud Share must be enabled on the DXi system (see App Environment). Cloud Share is not compatible with Concurrent Optimized Duplication. Concurrent Optimized Duplication must be disabled on the Storage Server before enabling Cloud Share. Cloud Share is not compatible with Automatic Image Replication. Automatic Image Replication must be disabled before enabling Cloud Share. Cloud Share is not compatible with Replication, WORM (OST), and Secure Snapshots (NAS, AS, OST). These features must be disabled before enabling Cloud Share. Once Cloud Share is enabled, it cannot be disabled.
   Storage Provider	Set as S3 by default.
   Bucket	Enter the Bucket Name configured on your S3 storage provider.
   Endpoint	If applicable to your configured bucket, enter the Endpoint address.
   Key ID	Enter the Key ID (Access Key) of the bucket configured on your S3 storage provider.
   Secret Key	Enter the Secret Key of the bucket configured on your S3 storage provider.
   Lifetime	This setting is for future functionality and does not need to be changed from the default of 365.

3. (Optional) In the Description box, enter a brief description of the LSU.

4. (Optional) Select the Enable Automatic Image Replication check box to automatically replicate (duplicate) data on the LSU to a remote LSU on another DXi.

   Automatic Image Replication (AIR) is disabled by default. If enabled, data on an LSU is automatically replicated to a remote LSU that resides on a DXi in a different NetBackup domain. The timing of the duplication, as well as the backup images that are duplicated, are determined by the storage lifecycle policies (SLPs) configured in NetBackup.

   OST AIR requires NetBackup 7.1 or higher. For information about configuring NetBackup for Automatic Image Replication, see the OST Guide.

   Note: You must configure at least one remote user before you can enable Automatic Image Replication. SeeManage Remote Users.

5. If Automatic Image Replication is enabled, select the replication target you want to replicate images to. (You can select only a single target.) When images are replicated, data will be sent to the selected target.

6. If Automatic Image Replication is enabled, specify the following information:

   Remote Storage Server Name	The name of the remote storage server (on the target system) to replicate data to. The source and target systems must reside in different NetBackup domains. Note: To configure the target system, see Replication Send.
   Remote LSU Name	The name of the LSU in the remote storage server that will receive the replicated data.
   Remote User	The OST user credentials to use for authentication on the remote (target) system. The selected remote user must match an Authenticated User on the Configuration > OST > Manage Users page on the target system. See Manage Application Access Users.

7. Click Apply. If Cloud Share was enabled, a dialog box appears stating that once this feature is enabled on the LSU, it cannot be disabled. Click OK to continue.

Edit an LSU to change its capacity, description, or automatic image replication settings.

To edit an LSU:

1. Select the LSU and click Edit.

   The Edit Logical Storage Unit page displays.

   

2. Enter information about the LSU:

   Note: If you are editing an LSU, the Name option cannot be changed.

   Physical Capacity	(Specific capacity LSUs only) Enter the physical capacity of the LSU (1 to 1048576 GB).
   Description	(Optional) Enter a brief description of the LSU.
   Enable OST WORM	(Optional) Complete the following steps to enable and set lock times for Write Once, Read Many protection for the new LSU: Select the Enable WORM checkbox to enable OST WORM for the LSU. Enter the Minimum lock time (indelible end time) to set the minimum time in seconds to activate the feature, following your saving and applying the OST Wizard screens at Step 4, Confirm. Enter the Maximum lock time (indelible end time) to set the maximum time in seconds to protect the data in the WORM-enabled OST LSU.
   Enable Secure Snapshots	Check this box to enable Secure Snapshots for this LSU. See Secure Snapshots, Enabling Systemwide Secure Snapshots and Enabling Secure Snapshots for OST LSUs. Note: Deduplication must be enabled in order to enable Secure Snapshots.
   Snapshot Retention (days)	When snapshots have been enabled for this LSU, enter the number of days to retain each snapshot for this LSU. Note: Any change to the share retention will affect only new snapshots. The retention for existing snapshots can be extended but never reduced.
   Enable Cloud	Check this box to enable Cloud Share for this share. Additional Information To enable Cloud Share on the selected share, Cloud Share must be enabled on the DXi system (see App Environment). Cloud Share cannot be configured on shares with hardlink support. Cloud Share requires the share to have deduplication enabled. Cloud Share is not compatible with Replication, WORM (OST), and Secure Snapshots (NAS, AS, OST). These features must be disabled before enabling Cloud Share. Once Cloud Share is enabled, it cannot be disabled.
   Storage Provider	Set as S3 by default.
   Bucket	Enter the Bucket Name configured on your S3 storage provider.
   Endpoint	If applicable to your configured bucket, enter the Endpoint address.
   Key ID	Enter the Key ID (Access Key) of the bucket configured on your S3 storage provider.
   Secret Key	Enter the Secret Key of the bucket configured on your S3 storage provider.
   Lifetime	This setting is for future functionality and does not need to be changed from the default of 365.

3. (Optional) Select the Enable Automatic Image Replication check box to automatically replicate (duplicate) data on the LSU to a remote LSU on another system.

   Automatic Image Replication (AIR) is disabled by default. If enabled, data on an LSU is automatically replicated to a remote LSU that resides on a system in a different NetBackup domain. The timing of the duplication, as well as the backup images that are duplicated, are determined by the storage lifecycle policies (SLPs) configured in NetBackup.

   OST AIR requires NetBackup 7.1 or higher. For information about configuring NetBackup for Automatic Image Replication, see the OST Guide.

   Note: You must configure at least one remote user before you can enable Automatic Image Replication. See Manage Remote Users.

4. If Automatic Image Replication is enabled, select the replication target you want to replicate images to. (You can select only a single target.) When images are replicated, data will be sent to the selected target.

5. If Automatic Image Replication is enabled, specify the following information:

   Remote Storage Server Name	The name of the remote storage server (on the target system) to replicate data to. The source and target systems must reside in different NetBackup domains. Note: To configure the target system, see Replication Send.
   Remote LSU Name	The name of the LSU in the remote storage server that will receive the replicated data.
   Remote User	The OST user credentials to use for authentication on the remote (target) system. The selected remote user must match a local user on the Configuration > OST > Manage Users page on the target system. See Manage Application Access Users.

6. Click Apply. If Cloud Share was enabled, a dialog box appears stating that once this feature is enabled on the LSU, it cannot be disabled. Click OK to continue.

Delete an LSU if it is no longer needed. When you delete an LSU, all data stored on the LSU is lost.

Note: If you deleted the LSU from Veritas NetBackup or Veritas Backup Exec, you must wait several minutes before deleting the LSU from the DXi9000 Series.

To delete an LSU:

1. Select the LSU in the Logical Storage Unit List.

You cannot delete an LSU if it has more than zero currently active connections. The number of active connections is displayed on the LSU page. See Logical Storage Unit List.

Note: You can select multiple LSUs to delete at once.

2. (Optional) Select the Force Delete LSU check box to delete LSUs that are not empty.

Normally, you cannot delete an LSU if it contains existing backup images. If for some reason you cannot remove files from the LSU, selecting the Force Delete LSU check box allows you to delete the LSU even though it is not empty.

3. Click Delete.