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Create a BlackBerry Attachment Service pool for high availability

During the BlackBerry® Attachment Service installation process, the setup application writes data about the BlackBerry Attachment Service instance to the BlackBerry Configuration Database. You can create a BlackBerry Attachment Service pool for each BlackBerry® Enterprise Server by associating multiple BlackBerry Attachment Service instances with each BlackBerry Enterprise Server. Within each pool, you can create primary and secondary groups.

For more information, see the BlackBerry Enterprise Server Planning Guide.

  1. In the BlackBerry Administration Service, on the Servers and components menu, expand BlackBerry Solution topology > BlackBerry Domain > Component view > Attachment > Connector.
  2. Click the BlackBerry Attachment Connector that you installed with the BlackBerry Enterprise Server that you want to create the BlackBerry Attachment Service pool for. By default, the name of the BlackBerry Attachment Connector is <computername>_EMAIL_AC_13.
  3. Click Edit instance.
  4. On the Supported Attachment Server Instances tab, in the Name drop-down list, click the instance that you want to add.
  5. In the Results Query Period(s) field, type the number of seconds that you want the BlackBerry Enterprise Server to wait for a response before it sends the request to another BlackBerry Attachment Service instance.
  6. In the Dedicated Server drop-down list, click yes if you want the BlackBerry Attachment Service instance to process only specific content types for the BlackBerry Enterprise Server.
  7. In the Pool drop-down list, complete one of the following actions:
    • To include the BlackBerry Attachment Service instance in the primary group of instances within a pool, click Primary.
    • To include the BlackBerry Attachment Service instance in the secondary group, click Secondary.
  8. Complete the following actions:
    • To turn on support for an attachment file format, in the Extensions section, type the file extension of the format. Click the Add icon that is located beside the extension that you typed.
    • To turn off support for an attachment file format, in the Extensions section, click the Delete icon that is located beside the file extension.
  9. Click the Add icon.
  10. Repeat steps 5 to 9 for each BlackBerry Attachment Service instance that you want to add to the pool.
  11. Click Save all.
  12. Repeat steps 2 to 11 for each BlackBerry Enterprise Server instance that you want to use a BlackBerry Attachment Service pool.
The BlackBerry Administration Service writes the data about the BlackBerry Attachment Service pool to the BlackBerry Configuration Database. The BlackBerry Messaging Agent caches the pool data and uses the data to determine which BlackBerry Attachment Service instance can process a request.

You cannot determine the BlackBerry Attachment Connector that the BlackBerry Enterprise Server or the BlackBerry MDS Connection Service uses

If you install a BlackBerry® Enterprise Server, the setup application also installs two BlackBerry Attachment Connector instances automatically. One of the BlackBerry Attachment Connector instances connects the BlackBerry Enterprise Server to the BlackBerry Attachment Service. The other instance connects the BlackBerry MDS Connection Service to the BlackBerry Attachment Service. During the installation process, the setup application gives both BlackBerry Attachment Connector instances a name that includes the computer name (for example, <computer_name>_AC).

The BlackBerry Administration Service displays the names of both the BlackBerry Attachment Connector instances. By default, you cannot determine easily which instance connects to the BlackBerry Enterprise Server or the BlackBerry MDS Connection Service, so you can change the display names of both the BlackBerry Attachment Connector instances to make them easier to identify.

  1. In the BlackBerry Administration Service, on the Servers and components menu, expand BlackBerry Solution topology > BlackBerry Domain > Component view > Attachment > Connector.
  2. Click one of the BlackBerry Attachment Connector instances.
  3. On the Instance information tab, locate either the MDS Connection Service Instance name section or the Email (GroupWise) Instance name section. Consider the following naming conventions:
    • If you locate the section that is named MDS Connection Service Instance name, the BlackBerry MDS Connection Service connects to this BlackBerry Attachment Connector instance.
    • If you locate the section that is named Email (GroupWise) Instance name, the BlackBerry Enterprise Server connects to this BlackBerry Attachment Connector instance.
  4. Click Edit instance.
  5. Perform one of the following actions:
    • If the BlackBerry MDS Connection Service connects to the BlackBerry Attachment Connector instance, in the Instance information section, in the Friendly description field, type a unique name (for example, <server_name>_AC_MDSCS).
    • If the BlackBerry Enterprise Server uses the BlackBerry Attachment Connector instance, in the Instance information section, in the Friendly description field, type a unique name (for example, <server_name>_AC_BES).
  6. Click Save all.

The BlackBerry Administration Service updates the list of BlackBerry Attachment Connector instances automatically to use the names that you typed.


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