Upgrading a Microsoft Cluster Service or Failover Cluster

Follow this sequence for shutting down, upgrading, and restarting cluster components.

1. Shut down all Sybase-related processes on cluster nodes in this sequence:
   1. Secondary nodes.
   2. Primary node.
2. On the active data tier server, launch the Microsoft Cluster Administrator and take the following active resources offline for this node:
   • Advantage Cluster Service
   • AFDB Cluster Service
   • CDB Cluster Service

   All other resources must remain online and accessible. If a resource other than those listed above becomes unavailable, the data tier upgrade fails.

3. Upgrade the active data tier.
4. Validate the upgrade on the data tier node by bringing the stopped Microsoft Cluster resources online and confirming that they are restarted.
5. Upgrade the passive node.
   1. Launch Microsoft Cluster Administrator.
   2. Failover the active node to the passive node. The passive node is now active.
   3. Repeat steps 2-4.
6. With all data tiers started, upgrade Unwired Platform on the remaining server nodes in this sequence:
   1. Primary node.
   2. Secondary nodes.

   Note: Ensure that the user credentials used to perform the upgrade on the Unwired Server nodes has the same permissions to read/write to the shared data path of the data tier node.
7. Restart all Unwired Servers, beginning with the primary server.