Cluster installation on single node - any comments ?

[Former Member]

Hello

I've got this scenario:

existing ERP6.0 on Windows 2003, 32bit, Oracle 10.2.0.2 - single host installation

Now second server and storage arrived.

The plan is to perform system copy on this new machine that will be configured with MSCS.

Old machine will be serving as backup node and maybe dialog instance before failover.

Anyway

We have to split this activity in two phases:

1) System copy on new machine and switch people and configuration to use new one.

2) After some time wipe the old one and reinstall win2003 and MSCS then install SAP and Oracle components.

The problem is that second node (old server) will be unavailable during installation on new one.

Maybe someone have previous experience with cluster environment and installtion on one node only ?

regards

Marcin

[Former Member]

Hi,

Well, I don't think that what you want to do is possible.

For what I've seen, you really need at least 2 nodes to install SAP software on an MSCS cluster.

A few years ago, when we configured our R/3 4.7 system to run on an MSCS cluster, we bought 2 new servers to be the 2 cluster nodes. The previous server was kept as safety during the operation.

After successfull cluster set up, the previous CI/DB server began a new life as a new application server.

Regards,

Olivier

[Former Member]

Well i've successfully performed system copy to MSCS based ERP 6.0 on single node first and then after few weeks added second node with dialog instance. Everything works OK - ASCS and Oracle cluster groups can reside on both nodes with every combination. Installation is quite simple - just follow install guide and do all available steps in order - even create Oracle group with single cluster node. When second node became availabale all you have to do is perform Verify cluster from OFS Manager tool and OFS will do the rest. If you have done link to ORACLE_HOME/database directory moved to shared drive you need to copy all files from there to .../database directory on local second node drive before you run Verify cluster.After that you can add permissions to ORA_SID_OPER and ORA_SID_DBA and create link to shared ./database directory.