Configure - Environments - Storage tab, Create/Edit Storage dialogs (8.0)

SUMMARY

Describes features of the Storage tab

ISSUE

When adding storage, you must first the select the primary storage type to use for your engine appliance. Only one primary storage type can be added to a single appliance. You can select from either, Backup, Archive, and Sync.

In addition, you can add secondary storage, IR Write Space along with any existing primary storage.

The Storage tab also lets you manage Read-Only Mounts for each appliance. Read Only mounts are required when other appliances must access the engine's storage for replication, sync, or archive, or when you have enabled Raw Data Access for an attached disk. Read Only mounts are enabled automatically in most cases when Archive, Replication, or Sync is configured.

 

Figure - Storage tab

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Adding Storage

Click the Add Storage dropdown to view a full list of storage targets. Clicking the arrow to the right of the target options displays the storage types available.

Figure - Add Storage dropdown

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Adding Attached Disk Storage

Attached Disk Storage consists of virtual disks added to the appliance virtual machine (via the hypervisor client). Attached disk storage typically is the best performing storage for backup data.

You can add additional attached disks after initially creating the storage to expand an existing data store.

 

 To add attached disk storage

  1. Select one of the Add Storage options (Backup, Archive, or Sync), click on the dropdown, and select Attached as the storage type. 

    The Add Attached Disk Storage window will open.

    Figure - Add Attached Disk Storage window

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  2. Enter a name for the storage target. This name will be used when this storage target is displayed in other areas of the interface.
     
  3. If you would like to add encryption for security purposes, select the Encryption type, enter your password and then re-enter it to confirm it is correct.

    Note: AES32 is recommended.

    Note: Encryption can only be set when storage is being added. You will be unable to make changes to encryption from the Edit Settings dialog.
     
  4. Adjust the storage Options. When you add backup storage, you have the ability to set the Backup Compression and the Default backup block size. Below are the options available in each of these dropdowns:

    Backup Compression:
    • Use BDS Setting - The default setting, this option will use the compression setting applied to the backup data store. The default setting at the backup data store is GZIP.
    • Uncompressed  - No compression is applied to the backup data. This can be useful (or required) when using storage devices that perform additional compression.
    • GZIP - This compression method performs the highest compression level resulting in reduced amount of storage space used. The additional compression used by GZIP will impact performance - backup speed and overall backup time.
    • LZOP - This method results in less compression than GZIP but in most cases will impact performance much less, resulting in compressed backups faster than the GZIP alternative.

    Block Size:

    • Use BDS Setting - The default setting, this option will use the block size setting applied to the backup data store. The default setting at the backup data store is 1 MB.
    • 512 KB, 1 MB, 2 MB, 4 MB - The size of the backup block used to store backup data should not be adjusted in most situations unless instructed to by support. Adjusting the block size can impact backup and restore performance.
    • Changing the block size will result in a full, non-CBT backup the next run.

    Storage Thresholds:

    Here you can set the thresholds to send a warning or stop a backup from proceeding when a certain percentage of storage levels remain. The warnings and stop thresholds will appear as alerts on the Dashboard and also in the top right corner of the interface.

    Raw Data Access:

    The attached disk storage type also allows you to Enable Raw Data Access by clicking the check box User-added image.  This option gives you the ability to share the BDS. The BDS is shared as either NFS or CIFS (NFS default) based on the Global Setting. Once the storage is added, the Raw Data Access column in the Storage table will read Enabled with an information icon to the right of the text. Clicking the icon will display a path to the storage. Using this link will direct you to the BDS.

    Sync targets:

    Here you can find the list of available sync targets. Select the Sync storage targets to synchronize with the data store. Backups added or deleted on this data store will also be added or deleted  on the Sync target.


    Note: Raw data access is automatically enabled when used as a source for archive, replication, or sync.

    Note: For all storage targets you can adjust storage thresholds and add sync targets.
     
  5. In the Manage Attached Disks area, select from the list of available attached disks and click User-added image. To remove the disk, select it and click User-added image. Clicking User-added image will reset all disk settings to the original settings from when dialog window was first opened. To refresh the list of available disks, click User-added image.
     
  6. Click Submit when finished. The storage is now available for use as a backup target.

You will be brought back to the Environments tab. In the Storage tab the status will initially read User-added image. When the disk is finished attaching the status will convert to User-added image.

Note: Attached disks can be created on any available storage volume connected to your host.

Note: For best performance, attached disk storage is recommended.

 

Adding CIFS Storage

Windows CIFS shares can be used as storage targets by providing the appliance the path and credentials required to access the storage. CIFS storage targets are recommended when using Full/Incremental backup mode.

 

To add CIFS Storage

  1.  Select the appliance on which you would like to add storage.
  2. Click on one of the Add Storage dropdowns (Backup, Archive, or Sync) on the Storage tab. Select CIFS.

    The Add CIFS (Backup, Archive, or Sync) Storage dialog will open.
     
  3. Enter the Path, along with your User name and Password. If necessary, you can enter any domain information as well.

    Below is an example creating Archive storage:

    Figure - Add CIFS Archive Storage Window

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  4. Set your storage Options (For details, see the fourth step of Attached Disk Storage section above). Click Submit to finish.

    Details of the added CIFS backup storage will appear in the table on the Storage tab.

Note: The CIFS account must have full permissions (read/write/delete) for the share used as the backup target. Also, anti-virus software should not be configured to analyze or scan the Unitrends VBA CIFS storage repository.

Note: Here you can adjust the block size and compression settings at the storage level. To adjust these settings at the VM level see Edit VM Settings dialog (8.0).

 

Adding NFS Storage

Network File System (NFS) storage can be used by providing the export path to the engine appliance.

Note that multiple appliances can use the same NFS target only if separate shares are created and assigned to each.

 

To add NFS storage

  1. Select the appliance on which you would like to add storage.
  2. Click on one of the Add Storage dropdowns (Backup, Archive, or Sync) on the Storage tab. Select NFS.

    The Add NFS (Backup, Archive, or Sync) Storage dialog will open.
     
  3. Enter the Name and Export Path.

    Set the storage Options (For details, see the fourth step of Attached Disk Storage section above).

    Below is an example creating Sync Storage:

    Figure - Add NFS Sync Storage Window

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  4. Click Submit when finished.

    Details of the added NFS Sync Storage will appear in the table on the Storage tab.

Note: The Unitrends VBA requires direct write access to the NFS export. During backup, the Unitrends VBA will directly mount and copy files to the NFS share. It is important to configure the export to allow this behavior. The following is an example export line: /export/share*(no_root_squash,insecure,rw,sync)

Note: Each VBA can have one storage type only. However, each VBA can have IR Write Space regardless of the storage type.

Retention Policy (Archive Storage Only)

If you plan on adding Archive storage, you have the option to set the retention policy for any type of storage (Attached disk, CIFS, or NFS) from the dialog. This retention policy will apply only to archive storage targets and any of the archive backups associated with them. There are three policy options to choose from: Typical, Keep all, or Custom. Selecting Custom allows you to change the retention settings to your own preference.

Figure - Retention Policy settings (Archive Storage dialog only)

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Editing Storage

To edit storage, select the disk and click User-added image. The Edit Storage dialog window will open. Here you will only be able the edit the disk name and options. If you want to add or remove a disk you must use those specific functions.

 

Removing Storage

To remove storage, select the disk and click User-added image. This disassociates the storage from the VBA. This does not destroy the storage location (that must be done manually). A confirmation window will open.

Figure - Confirm Storage Removal window

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Click Confirm to finish.

 

Note: Only one backup data store can be added for each appliance.

Note: When editing backup storage, verify no jobs are running that affect the BDS being edited.

Note: If you remove storage the appliance role will disappear.

Note: Each VBA can have one storage type only. However, each VBA can have IR Write Space regardless of the storage type.

 

Adding Additional Storage

If you need to add additional storage, you can either expand the available storage on your CIFS or NFS shares or if using attached disk storage, you can edit the existing storage then add additional attached disks. Attached disks must first be added to the appliance VM using your hypervisor client. When added, follow the steps above for adding attached disk storage to add the additional disks and expand the available storage.

 

Read-Only Mounts

You can manually mount any source backup data stores you plan to use when replicating or archiving VMs by clicking User-added image. All storage targets can be mounted as read-only for use with replication, archive, or sync.

After creating an Archive or Replication job or when enabling Sync Read-Only mounts are automatically configured.

Figure - Manage Read-Only Mounts dialog

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Note: Read Only Mounts require Enable Raw Data Access to be checked when adding storage.

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