Recalling Legacy Stubs

You can use the MassRecall Utility to recall stubs that were backed up using the version 9 or the version 10 Exchange Mailbox Archiver Agent by using version 11 of either the Exchange Mailbox Agent or OnePass for Exchange Mailbox (Classic). If you deconfigured the older version of the Exchange Mailbox Archiver Agent, then recalling the stubs using version the version 11 agents works as expected. However, if you use only a fresh install of the version 11 agent, you must configure the client where the MassRecall Utility is installed.

In the case of a fresh install, to recall stubs that were backed up using the version 9 Exchange Mailbox Archiver Agent, you must initiate a recall of version 10 stubs first. Recalling the version 10 stubs creates a persistent recovery job. While that job is running, you can then recall the version 9 stubs. If the persistent recovery job completes before you recall the version 9 stubs, you must initiate the version 10 recall again.

By default, the persistent recovery job completes 24 hours after the last recall request. Use the nDMRSIDLETIMEOUT additional setting to increase the amount of time that it takes the persistent recovery job to complete.


  1. Configure the client by doing the following:
    1. Log on to the client where you located the agent.

      Use the credentials for the Windows account that you defined in the mailbox agent properties.

    2. In Windows on the client computer, click Start, and then type regedit in the Search programs and files box.
    3. Press Enter.
    4. In the Registry Editor, expand HKEY_LOCAL_MACHINE > Software > CommVault Systems > Galaxy > Instance001 > Machines > machine_name.
    5. Right-click the machine name, click New > Key, and then type MSExchangeDMAgent.
    6. Right-click MSExchangeDMAgent, click New > DWORD, and then type nINSTALL.
    7. Right-click nINSTALL, type 1 in the Value data box, and then click OK.
    8. Close the Registry Editor.
  2. On the client where the agent is located, add the nDMRSIDLETIMEOUT additional setting as shown in the following table.

    For instructions about adding the additional setting from the CommCell Console, see Adding or Modifying Additional Settings from the CommCell Console.










    Enter a value in seconds.

    The value should be an extended amount of time such as 259200 seconds (that is, 72 hours).

  3. Restart the services.

Last modified: 4/29/2019 4:11:32 PM