How to setup MSCS configuration which consists of CI/SCS/DB in same group?

[Former Member]

hi experts

We are planing two node active-passive cluster by MSCS.

Installation guide just saying only active-acitive cluster configuration

such as CI/DI local installation ,and not clustered.

But we would like to cluster CI not only SCS,DB.Because if we follow

the normal configuration such as CI/DI installed in local disk and

only SCS/DB clustered, in the case of CI down, users have to

consider which URL(hostname) must be active.

So if somebody has some information to setup CI clustered.

I would appriciate it very much.

Regards

MASAKI

[Former Member · Accepted solution]

Hi Masaki,

As pointed out in the above response, using a load balancer is a better idea. In case if you still want to go ahead with clustering your CI, this is possible.

Start your sapinst from command prompt with the option sapinst.exe SAPINST_USE_HOSTNAME=<VirtualName>. During the installation, wherever it asks for CI name, use Virtual name and use a shared disk to install ur sap binaries.

Once your installation is completed on first node, login into your second node. Create SAP service using sapstartsrv, register your sap DLL's in C:\windows\system32, copy folder C:\windows\SAPCluster, manually register SAPOSCOL, update services file to include the ports.

Then try your failover and it should work.

Fahad

[Former Member]

Hello!

Please consider introducing a loadbalancer (e.g. sapwebdisp) into your environment. If it grows and you have additional application servers you will need one anyway and it definitely makes sense to introduce this layer from the start so that later on no re-design is required. sapwebdisp can be installed in a switchover group and will most probably be able to satisfy all your needs.

If you want to stick with the idea of making the CI switch over that should be possible as well, although I am not familiar with the details of handling this in a MSCS environment. Basically the handling should be more or less the same like for any ABAP instance before Netweaver7.

Regards,

Jörg