Hi All,
We are installing HA enviornment for PI 7.31 ( Java only) on IBM HACMP.
The doubt is regaring the exact step and location to of installing the ERS.
The HA setup is as follow:
there are 2 physical server on the cluster envirnmrnt in Active-Passive mode , with one Virtual Host name assign to it.
The sapinst says the following :
Description:
Installs the central services instance for Java (SCS instance).
First step in installing a high-availability (HA) SAP NetWeaver 7.3 including Enhancement Package 1 Java system
You must install the SCS instance on a shared disk.
Make sure that you assigned a virtual host name using command line option SAPINST_USE_HOSTNAME when you started the installer to execute this option.
With this option you can also install the required enqueue replication server instance (ERS instance) for the SCS instance:
SCS Instance
The SCS instance is the main point of communication and synchronization for the Java application server instances. It consists of the message server and the enqueue server for the Java stack.
ERS Instance
The ERS instance contains the replication table, which is a copy of the lock table.
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Where as the installation guides says that it needs to be installed on both the physical host on local disk.
Any idea how the actual set will be .
Br
Anthony