Upgrading a multimaster mesh

When upgrading a multimaster mesh, the following steps must be performed:

1. Make sure that all CORD patches are uninstalled
2. Check the transaction status
3. Shutdown services on the Secondary cores
4. Upgrade the Primary Core
5. Upgrade the Secondary Cores

Checking transaction status

Before starting to upgrade a multimaster mesh, make sure that there are no transactions that are not sent or received and that there are no conflicts. See the Viewing the State of the Multimaster Mesh - SA Client section in the SA 10.50 Administration Guide.

If conflicts exist, these must be resolved before starting the upgrade. See the Resolving Mesh Conflicts - SA Client section in the SA 10.50 Administration Guide for more details.

Shutting down the services on the secondary cores

Before starting the upgrade procedure of your cores, you must stop the services on all the secondary cores in the mesh, so as to avoid new running jobs to create conflicts.

Method 1: Shut down using the opsware-sas service

Run the following commands for each secondary core that is part of the mesh:

1. Shut down all Secondary Core services by issuing the following command as a user with root privileges on each Secondary Core host:

   /etc/init.d/opsware-sas stop

2. Start the Management and Core Gateways on the Secondary Core host by issuing the following command:

   /etc/init.d/opsware-sas start opswgw-mgw opswgw-cgws

Method 2: Shut down using the Management Console

You can also use the Management Console to stop the services. You need to invoke the following command once on each of the Secondary cores that is part of the mesh. On the Infrastructure host of each core, invoke the Management Console using the installation media:

<distro>/opsware_installer/hpsa_mgmt_console.sh –c <path_to_CDF_file>

where <distro> is the full path to the distribution media. For example:

/<mountpoint>/hpsa-primary/disk001

Select the Shutdown service option in the utility menu and follow the instructions.

For more details, see the SA Management console section in the SA 10.50 Install Guide.

Upgrading the Primary Core of a multimaster mesh

Once the steps described above have been performed, you may start to upgrade the Primary Core of the mesh.

The services must be running on the Primary core, but must be stopped on the Secondary cores, as described in the previous step.

The upgrade process is the same as listed in Upgrading a single-host Core or Upgrading a single Core with distributed components sections described above, depending on the core layout. Refer to the corresponding section for the complete procedure.

Upgrading the Secondary Core of a multimaster mesh

You can upgrade the Secondary Cores in a mesh one at a time or upgrade multiple Secondary Cores concurrently. After each Secondary Core has been upgraded, its services will be restarted and can remain running while you upgrade the other Secondary Cores.

The upgrade process is the same as listed in Upgrading a single-host Core or Upgrading a single Core with distributed components sections described above, depending on the core layout. Refer to the corresponding section for the complete procedure.