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  1. BlackBerry Docs
  2. BlackBerry Enterprise Mobility Server 3.9
  3. BEMS Installation Guide
  4. Appendices
  5. Configuring BEMS for disaster recovery in an on-premises environment
  6. Install and configure the Presence service cluster

Install and configure the
Presence
 service cluster

The server that hosts the
Presence
 service does not require a separate database when it is installed with a service that uses a database (for example, BEMS_Core if Push notifications service (Mail) is installed on the same server). The
Presence
 service requires access to a database when it is installed as a separate cluster.
Before you add a
Presence
 instance for disaster recovery, complete the following actions:
  • If your environment has separate Front End Pools or additional Trusted Application Pools, make sure that you add the correct permissions. Note: The
    Presence
     and
    Connect
     service can use the same Trusted Application Pool for disaster recovery.
  • Make sure that the appropriate network ports are open to allow the servers that host the
    Presence
     service within your secondary site to communicate with the database,
    Skype for Business
     Server, or
    Skype for Business
     database, and
    BlackBerry Proxy
     servers in your secondary and primary site.
  1. Install
    BEMS
     on each server that will host the
    Presence
     service at the primary site. Select the
    Presence
     option in each case. If only
    Presence
     is installed on a server, use a new database to create a new cluster dedicated to
    Presence
     (for example, BEMS_Core2). If
    Presence
     is installed on a server with a service that uses a database (for example, Push notifications service (Mail)),
    Presence
     uses the BEMS_Core database.
  2. Install
    BEMS
     on each server that will host the
    Presence
     service at the secondary site. Select the
    Presence
     option in each case. Depending on your environment configuration in step 1, add the servers to the same database or the new database.
  3. At the primary site, in the
    BEMS
     dashboard (
    BEMS
     System Settings >
    BlackBerry
     Configuration >
    BlackBerry Dynamics
    ), configure one or more
    BlackBerry Proxy
     servers from one or more clusters in the primary site. This list is used only for startup. Clear the 'Apply to other nodes in this BEMS cluster' check box. Repeat this step on each server that hosts the
    Presence
     service in the primary site.
  4. At the secondary site, in the
    BEMS
     dashboard (
    BEMS
     System Settings >
    BlackBerry
     Configuration >
    BlackBerry Dynamics
    ), configure one or more
    BlackBerry Proxy
     servers from one or more clusters in the secondary site. This list is used only for startup. Clear the 'Apply to other nodes in this BEMS cluster' check box. Repeat this step on each server that hosts the
    Presence
    Presence
     service in the secondary site.
  5. Configure the appropriate instant messaging (for example,
    Skype for Business
    ) and
    Active Directory
     settings (for example, the
    Skype for Business
     front-end pool).
  6. Stop the services on the servers at the secondary site to prevent the disaster recovery nodes from contributing to normal cluster operations (for example, presence status of users).
  7. In the
    BlackBerry UEM
     management console, in the
    BlackBerry Dynamics
     connectivity profiles that are assigned to users, do the following for each server that hosts the
    Presence
     service. Depending on your environment configuration, additional server-side services might be required. For more information about
    BEMS
     services and server-side bindings, see the Additional information. 
    1. At the primary site, under
      App servers for BlackBerry Presence Service
      , set the
      Priority
       to PRIMARY and set the
      Primary BlackBerry Proxy cluster
       to BPCluster1.
    2. At the secondary site, under
      App servers for BlackBerry Presence Service
      , set the
      Priority
       to SECONDARY or TERTIARY and set the
      Primary BlackBerry Proxy cluster
       to BPCluster2.