Interoperating with Version 6.0.1.2 processes
The high availability manager supports multihomed hosts, which means that the product processes can communicate with each other even if they are running on different versions of the product. If you are running Version 6.0.1.2 processes that need to communicate with each other, there are high availability manager-related issues that you need to consider.
Before you begin
About this task
After the installation of Version 6.0.1 Fix Pack 2, the asterisk is recognized as a valid value for the DCS_UNICAST_ADDRESS host name field. When this field is set to an asterisk, multihome support allows the high availability manager to open and receive connections on all IP addresses available for the host.
- Type 1
- Processes that can operate only in single-IP mode. This category includes processes on Version 6.0 nodes or Version 6.0.1 nodes that do not have Version 6.0.1 Fix Pack 2 installed.
- Type 2
- Processes on Version 6.0.1 nodes that have Version 6.0.1 Fix Pack 2 installed, but do not have the DCS_UNICAST_ADDRESS host name field for the process set to an asterisk.
- Type 3
- Processes on Version 6.0.1 nodes that have Version 6.0.1 Fix Pack 2 installed and have the DCS_UNICAST_ADDRESS host name field for the process set to an asterisk.
- Type 1 and type 2 processes can interoperate.
- Type 2 and type 3 processes can also interoperate.
- Type 1 and type 3 processes cannot interoperate.
Therefore, careful planning is necessary before converting processes to type 3 processes.
To enable interoperating with Version 6.0.1.2 processes:
Procedure
Results
What to do next
- Check for type 1 processes. Type 1 processes log the following
message, which indicates that the host name for another process in
the core group is an asterisk:
HMGR0024W: An error was encountered while looking up the IP address for the host name of a core group member. The host name is * and the server name is myCell01\myCellManager01\dmgr. The member will be excluded from the core group.
- Check for type 3 processes. Type 3 processes do not display in
a view with type 1 processes, but can be detected by examining the
HMGR0218 messages the various processes log. If the processes connect,
the same message is logged across all processes. Specifically, processes
that connect have the same view identifier and the same number of
processes in the view.
HMGR0218I: A new core group view has been installed. The core group is defaultCoreGroup. The view identifier is (8:0.spoletoCell01\ spoletoCellManager01\dmgr). The number of members in the new view is 2.