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Former Member

Cluster Administration

Hi All,

I need a quick clarification about the cluster administration of A and B nodes.

Here we have two nodes Node 1 SAP services are running and Node 2 DB services are running both have the cluster administration.

if node 1 failed due to the any issue then all the SAP services like (SAP OSCOL etc) will move to the node 2 automatically Is it(can you explain this) .

and also how we move the SAP services manually to the node2 in case of any issues in node 1.

Regards

Shathishkumar

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3 Answers

  • May 11, 2014 at 11:38 AM

    Hi Sathish

    Are you using the Windows fail over cluster?

    BR

    SS

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  • May 11, 2014 at 06:19 PM

    Hi Sathish

    I am Sorry man delay

    if node 1 failed due to the any issue then all the SAP services like (SAP OSCOL etc) will move to the node 2 automatically Is it(can you explain this) .

    As you said that both nodes are used. Node 1 . SAP instance + SAP Group(DNS Name to connect the SAP system) Node 2 DB & SAP Dialog(Application server) instance. If any one of the physical node fails all the Cluster resource ( Windows fail over Cluster, SAP , DB groups are moving to standby node) are moves to one node with minimum one request time out. in this case you can have fail over Cluster active / active mode. In the Cluster environment only the services are getting failover from one to another node.

    In this setup both nodes SAP instance are on,

    farther information you can refer the SCN link

    High Availability - Frequently Asked Questions

    Windows Server Failover Clustering - SAP Business Continuity - SAP Library

    Kindly refer the screen shot

    BR

    SS


    Capture.JPG (62.2 kB)
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    Former Member
    May 13, 2014 at 11:33 AM

    Thanks Sriram this would help me to understand clear.

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