2013-03-19 03:11 AM
I want to split an existing OnCommand Core installation in two separate servers:
- One server for Operations Manager (monitoring and reporting) and Protection Manager/Provisioning Manager. This role will be filled by the existing server, where only the Performance Advisor functionality will be disabled.
- One server dedicated for Performance Advisor. This server should get the Performance Advisor history of the existing server.
What is the best scenario in creating the second server for Performance Advisor.
I'm thinking of the following scenario's:
- Clone the data LUN of the existing server and mount the LUN to the new server. Question here is, how do I safely disable the Protection Manager functionality? I'm worried that once I bring up the second server with cloned LUN, the Protection Manager functionality will kick in and start screwing up things because two Protection Manager instances will try to accomplish the same results. How do I prevent this from happening?
- Another possibility is to create a fresh OnCommand installation, register all existing controllers in Operations Manager and then copying the Performance Advisor data from the old server. But how will the existing history data get mapped to the newly discovered controllers in the new server?
What would be the best option in this scenario?
2013-03-19 05:12 AM
You have hit the nail on the head. The retiring of Protection Mgr is very critical and needs to be done on the OM Server. Also given that 2 instance of DFM server will be hitting the same set of controller you will have to tone down the monitoring.
Pls refer to the following document for the monitors to turn off for PA only monitoring.
In the mean time pls stay tuned I will give you the detailed steps on how to do this with no impact or downtime.
2013-03-21 12:27 PM
Before I upload the doc I need some more info.
What is the current version of OCUM that this server is Running ?
Is this a Windows or linux server ?
How Many Dataset/Relationship are being managed ?
How many controllers are being monitored ?
Once I get the answers for these question I will upload the Migration doc.
2013-03-25 01:34 AM
5.0 on Windows 2008, I intend to upgrade to 5.1 before the upgrade and to purge the DB.
It monitors about 14 controllers with some 3300 LUNs. PM manages ~4000 SnapVault relationships and ~1200 or so snapmirror relationships.
2013-03-30 04:27 PM
Attached is the detailed procedure to do the same. ( Lately I have done this for atleast 4 other large customers)
Known and should Ignore:
Order in which Steps Should be performed.