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Sun Cluster 3.1 Data Service for SAP

Preparing the Nodes and Disks

This section contains the procedures you need to prepare the nodes and disks.

How to Prepare the Nodes

Use this procedure to prepare for the installation and configuration of SAP.

  1. Become superuser on all of the nodes.

  2. Configure the /etc/nsswitch.conf so that Sun Cluster HA for SAP starts and stops correctly in the event of a switchover or a failover.

    On each node that can master the logical host that runs Sun Cluster HA for SAP, include one of the following entries for group in the /etc/nsswitch.conf file.


    group:
group: files [NOTFOUND=return] nis
group: file [NOTFOUND=return] nisplus

    Sun Cluster HA for SAP uses the su user command to start and probe SAP. The network information name service might become unavailable when a cluster node's public network fails. When you add one of the entries for group in the /etc/nsswitch.conf file, you ensure that the su(1M) command does not refer to the NIS/NIS+ name services if the network information name service is unavailable.

Where to Go From Here

Go to How to Register and Configure Sun Cluster HA for SAP as a Scalable Data Service.