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Group Dependencies

Created: 26 Jul 2013 | 3 comments

Hi Experts,

I wanted to configure the SG dependencies with below requirement:

Application and Database should not run on same node. Please let me know the possibilities. Thanks

Thank You

Operating Systems:

Comments 3 CommentsJump to latest comment

Setu Gupta's picture

Hi Darshan,

You can configure two types of SG dependencies in this scenario:

1) online remote local

2) online remote firm

There are slight differences in behavior depending on whether the service groups are failover or parallel. You can find the details in Veritas Cluster Server Administrator's Guide.

Thanks,
Setu.

mikebounds's picture

If the application should not start until the database has started, then you should use dependences as described by Setu.  If the application and database can start independently, then you should use System Limits and service group prerequistes, so for instance:

For each system set System attribute Limits = {appdb=1} (example hasys -modify node1 Limits appdb 1)

For your db and app service group set group attribute Prerequisites = {appdb=1} (example hagrp -modify db-sg Prerequistes appdb 1)

Mike

UK Symantec Consultant in VCS, GCO, SF, VVR, VxAT on Solaris, AIX, HP-ux, Linux & Windows

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Alok Sontakke's picture

How are the SystemList going to be setup for Application and Database? Also are they Failover/Parallel service group?