how to start/stop a MSCS clustered SAP system?

[Former Member]

Hi!

I know the sequece is very important.

Could you give the step sequence and the method of each step?

I search SMP but found no clue.

Thanks a lot! Pints guaranteed.

[Former Member · Accepted solution]

Hi Jennifer,

Please follow the below sequence :-

Eg: - System Landscape - MSCS - [Node A(CI) & Node B(DB)] and C as Application Server.

Stoping:-

1. MMC - C(Stop All Application Server)

2. NodeA - Cluster Administrator - move DB Group to NodeA

3. NodeB - MMC - Stop all SAP instances

4. NodeA - MMC - Stop all SAP Instances

5. Now You can safely do any maintenance work or shudown the MSCS cluser servers

Starting:-

1.NodeA - MMC - Start all SAP instances

2.NodeB - MMC - Start all SAP instances

3.NodeA - Cluster Administrator - move DB group to NodeB

4.The Application Server MMC Start all Apllication Server Instances.

Hope this will help you in regard to MSCS starting and stoping sequence.

Regards

Rayees Palot

[Former Member · Accepted solution]

Thanks a lot!

[Former Member]

Hi,

When using a MSCS cluster I find it easier to just use the cluster administrator to stop the system :

First, take the SAP resource offline and then, take the database resource offline.

You can do it from whatever node you want: that is why it is called a cluster !

Regards,

Olivier

[Former Member]

Hi

I would assume that you are running SAP services on one node and database services on another node(Please correct me I am wrong).

So first stop your SAP from MMC.

Then open your cluster administrator(I would prefer you open the cluster admin on database node)

1. Right click on SAP cluster group and then stop

2. Right click on Database cluster group and then stop.

When you start ,first start Database services and the SAP services

Then you can start SAP.

Let me know of any questions

Rohit

[Former Member]

Rohit:

Please tell "So first stop your SAP from MMC" from which node? CI or DB?

Just because we have MMC on both nodes and seems stopping SAP on one node MMC

does not impact the SAP service on another node MMC.

If I have to stop SAP on both nodes' MMC, which node should stop first or the sequence

does not matter?

We installed CI on one node and DB on the other node.

Please advise.

Thanks a lot!

[Former Member]

hi

stop SAP from CI node and then DB node

as when you stop SAP on CI the services will automatically move to DB node

Rohit