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Former Member

In what type of HA context should OSS Note 1052984 be applied to?

Hello,

I was wondering if somebody could clarify the Term u201CHigh Availabilityu201D (HA) in an SAP Context.

I installed a PI 7.11 (SID=ABC) system as part of an HA Cluster Failover.

The u201CABCu201D system is running on Server Host u201C123u201D.

I have another Server Host, u201C456u201D, that is part of the HA Cluster Failover. This server has two other SAP Instances u201CDEFu201D and u201CGHIu201D installed on it.

When u201CABCu201D needs to failover, due to Hardware failure, etc, the two Instances u201CDEFu201D & u201CGHIu201D are shut down by the HA Cluster Software on host u201C456u201D, and then u201CABCu201D fails over to server u201C456u201D, and runs on it until the original host, u201C123u201D is available again for u201CABCu201D to run on.

I was reading OSS Note 1052984, u201CProcess Integration 7.1- High Availabilityu201D, and in this noteu2019s context it seems like HA is referring to an Instance where the

ASCS u2013 (ABAP System Central Services)

SCS u2013 (JAVA System Central Services)

DVEBMGS u2013 (Primary Application)

DB u2013 (Database Instance)

Are all installed on separate servers, and not necessarily on an u201CHAu201D cluster, where one SAP instance resides on one server and can failover to another node B server, when the need arises.

Any insight in to what context Note1052984 is referring to would be very helpful.

Thank you.

Regards.

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1 Answer

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    Former Member
    Jun 21, 2010 at 09:24 AM

    Hi Hiko,

    You might find the answer to your questions on the following links:

    http://www.sdn.sap.com/irj/sdn/ha#section12

    http://www.sdn.sap.com/irj/sdn/index?rid=/webcontent/uuid/b09d53ac-8b0f-2b10-6798-ecfd55894839 [original link is broken]

    Hope this helps!

    Kind regards,

    Mark

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    • Former Member Former Member

      Hi,

      I an stuck at EhP upgrade because of note 1667685 (The requested SAP Note is either reworking or is released internally only ). Without this note implemented I cannot move forward. Would you be kind enough to send me the note at ( khaleelonline1 @ gmail.com ). Thank you.