Setting the Data Readers for File System Agents

Data Reader determines the number of parallel read operations while the data is backed up.


  1. From the CommCell Browser, expand Client Computers > client > File System > backup_set.

  2. Right-click the subclient and then click Properties.

    The Subclient Properties dialog box appears.

  3. In the Subclient name box, type the name of the subclient.

  4. On the Content tab, add the content to be backed up.

  5. Click Advanced.

    The Advanced Subclient Properties dialog box appears.

  6. On the Performance tab, select one of the following options:

    • Automatically use optimal number of data readers

      Applies to: File system agents such as Network Shares, Hadoop, GPFS, GlusterFS, and LustreFS.

      When you select this option, the software automatically assigns the number of streams or readers required to perform the backup operations. The number of data readers that are assigned are based on the number of nodes configured for the subclient.

    • Number of Data Readers

      Enter the number of data streams in the Number of Data Readers box.

  7. Select the Allow multiple data readers within a drive or mount point check box.

  8. Click OK.

  9. On the Storage Device tab, in the Storage Policy list, click a storage policy name to associate with the subclient.

    Tip: To create a new storage policy, click Create Storage Policy and follow the instructions in the storage policy creation wizard.

  10. Click OK.