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Dell NetWorker 19.9 Administration Guide

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Creating an AFTD by using the Properties window (Windows)

You can configure an AFTD on a storage node running Microsoft Windows.

  1. Create one directory for each disk (or partition) to be used for an AFTD.

    AFTDs require a directory (folder) to be created in the disk file system that the NetWorker server or storage node recognizes as the device name (and the destination for the data).

    NOTE:Do not use a temporary directory for AFTDs. The data could be overwritten.
  2. In the NetWorker Administration window, click the Devices view.
  3. Verify that the path to the storage directory that will contain the AFTDs is allowed.
    1. In the navigation tree, select Storage Nodes.
    2. Right-click the storage node that you will use, and select Properties.
    3. In the AFTD allowed directories list, verify or type the path of the storage directory that will contain the AFTDs.

      AFTDs can be created and accessed only by these listed paths. If this list is left empty, there are few restrictions as to where a device path can be created.

    4. Click OK.
  4. In the navigation tree, right-click Devices and select New.

    The Create Device window opens, with the General tab selected. The Identity area might show a default device name in the Name field.

  5. In the Identity area, set the following attributes:
    1. In the Name attribute, type the name of the directory that you created for the AFTD.
      For example: 
aftd-1

      If you configure the device on a separate storage node host that is not the NetWorker server host, it is a remote device and this Name attribute must be specified with rd= in the following format:

      rd=remote_snode_hostname:device_name

      For example:


      rd=snode-1:aftd-1
    2. (Optional) Add a comment in the Comment field.
    3. In the Device Access Information attribute, provide complete paths to the device directory. You can provide alternate paths for the storage node and for Client Direct clients, for example:
      • For an AFTD on the storage node’s local disk, which it shares via CIFS:

        E:\aftd-1
        \\snode-1\aftd-1

        The first path enables the storage node to access the device via its local drive. The second path enables Client Direct clients to access the device directly, bypassing the storage node.

      • For a CIFS-mounted AFTD, specify the complete paths of the directory that is created by using the Universal Naming Convention (UNC), for example:

        \\CIFS_host\share-point-name\path

    4. In the Media Type field, select adv_file, for the AFTD.

      Considerations for Client Direct clients provides additional details for Client Direct configurations.

      Multiple devices for a single volume configuration provides additional details for shared volumes.

  6. In the Status area, ensure that the Auto Media Management tape feature is not enabled.
  7. In the Cleaning area, leave the options for cleaning at their default (disabled) settings, so that automatic cleaning is not invoked.
  8. Select the Configuration tab.
  9. In the Save Sessions area, set the number of concurrent save sessions (streams) and the number of nsrmmd (data mover) processes the device may handle:

    • Target Sessions is the number of sessions that a nsrmmd process on the device will handle before another device on the host will take the additional sessions. Use this setting to balance the sessions among nsrmmd processes.

      If another device is not available, then another nsrmmd process on the same device will take the additional sessions.

      Typically, set this attribute to a low value. The default values are 4 for AFTDs and 6 for DD Boost devices. It may not be set to a value greater than 60.

      Multiple devices for a single volume configuration provides details on volume sharing.

    • Max Sessions is the maximum number sessions the device may handle. If no additional devices are available on the host, then another available storage host takes the additional sessions, or retries are attempted until sessions become available.

      The default values are 32 for AFTDs and 60 for DD Boost devices, which typically provides best performance. It cannot be set to a value greater than 60.

      The Max Sessions setting does not apply to concurrent recover sessions.

    • Max nsrmmd count limits the number of nsrmmd processes that can run on the device. Use this setting to balance the nsrmmd load among devices. The default value is 4.

      To modify this value, first adjust the sessions attributes, apply, and monitor the effects, then update max nsrmmd count.

      At least one nsrmmd process is reserved for restore or clone operations.

  10. In the Local Backup area, leave Dedicated Storage Node at No (the default).
  11. In the Remote Host area, if a network path is specified in the Device Access Information, then type a Remote User name and Password.
  12. Click OK when the configuration is complete.
  13. If a new password for an AFTD is provided, unmount and re-mount the device to ensure that the change takes effect.

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