Diagnostic Agents on a High-Availability Cluster Question
We are looking to install diagnostic agents for a High-availability Cluster.
The system landscape is as follows:
- Two physical servers on a cluster, Node01 and Node 02.
- Node01 runs ERP central instance, Node02 runs SCM central instance
- If Node 01 (ERP central instance) goes down, system switch over occurs, ERP then runs on Node 02.
- Likewise, if Node 02 (SCM central instance) goes down, system switch over occurs, SCM then runs on Node 01.
I have gone over this wiki page: Diagnostics Agent and HA Support - SAP Solution Manager Setup - SCN Wiki , but still have a couple of questions:
My understanding is that we should install a Diagnostic Agent on both Node01 and Node02 without specifying a logical host, then enable the 'Diagnostics-on-the-fly' functionality for both nodes. For example, I will install a Diagnostic Agent (DAA) on Node01, not specify a logical hostname during the install, then after the install during the host configuration step (solman_setup -> managed system configuration -> Hosts) on step 2 (Enter System Parameters), I will enter the host of Node02.
Is this correct? I am wondering if it is okay to set up the diagnostic agents in this regard when failing over to a Node that is hosting another system. Is there anything else I should consider?
Thank you very much! Please let me know if you need me to clarify anything or need any additional information.