# Add a Virtual Disk

Depending on your setup, add a Virtual Disk with the settings needed to set it up as a backup target using one of the following:

- Add a Virtual Disk for Distributed Storages With Replication Factor

- Add a Virtual Disk for Distributed Storages With Erasure Coding 4.2

## Add a Virtual Disk for Distributed Storages With Replication Factor

Create a Virtual Disk using the Distributed Storage servers with replication factor.

### Procedure

1. From the Command Center navigation pane, go to Manage > Storage > Commvault File System.

   The Distributed Storage page appears.

2. In the Cluster URL column for the registered Distributed Storage cluster, click the cluster URL that you need to access.

   The Cluster Watch page appears.

3. From the Virtual Disk Management tab, click Add Disk.

   The Add New Virtual Disk dialog box is displayed.

4. Select or enter the following information:

   - Name of the virtual disk. Note that this will be used as the export name for mounting the disk library on the MediaAgent.

   - Size of the virtual disk used for the disk library.

   - Disk Type should be set to NFS.

   - Workload Type should be set to Backup.

   - Encryption and Enable Deduplication should be disabled (turned-off).

   - Replication Factor should be set to 2.

5. Click Run.

## Add a Virtual Disk For Distributed Storages With Erasure Coding 4.2

Create a Virtual Disk using the Distributed Storage servers with erasure coding (EC 4.2).

### Procedure

1. From the Command Center navigation pane, go to Manage > Storage > Commvault File System.

   The Distributed Storage page appears.

2. In the Cluster URL column for the registered Distributed Storage cluster, click the cluster URL that you need to access.

   The Cluster Watch page appears.

3. On the Virtual Disk Management tab, click Add Disk.

   The Add New Virtual Disk dialog box is displayed.

4. Select or enter the following information:

   - In the Name box, type the name of the virtual disk.

     Note

     This name will be used as the export name for mounting the disk library on the MediaAgent.

   - In the Size box, type the size of the virtual disk used for the disk library.

   - From the Disk Type list, choose NFS.

   - From the Workload Type list, choose Backup.

   - Under Protection Policy choose the Erasure Coding option.

   - From the Erasure Config list, select the RS_4_2 option.

   - Encryption and Enable Deduplication should be disabled (turned-off).

   For more information about adding virtual disks, see Creating Virtual Disks.

5. Click Run.

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