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Hello good day,

I’m planning to upgrade CommVault server from version 11.24.134 to 11.36.56. CS/MA is a physical serve. DDB and Disk Library are hosted on the same server.

Upgrade procedure is fine. Not very sure how is the rollback plan. Understanding if any upgrade error occur it will not automatically rollback. DR backup configured no DR-Live sync.

If CS server has a media agent role and data on it how to do this, because we could not uninstall CS before uninstalling the media server. Is it possible to repair CS software using install package as it has an option for repair but not sure it is applicable for a CS server, then restore the DB using DR backup set. Definitely we must log a support case.

I need to plan how to rollback/reinstate CommServe (CS, MA, Disk-Library & DDB are on same box) in a situation of an upgrade failure. Please help.

 

 

 

 

The solution - to make the commcell generally operational - is quite simple.

Have full set of 11.32.124 installation binaries and install commserve with all the packages it had originally.
Find the latest DR backup taken before the upgrade.

Install the software.

After the installation is done, run CSRecoverAssistant (from Base folder) in production mode and point it to the DR backup from the previous point.

If the media agent is installed in the second instance, you’ll need the below additional key in place:

https://documentation.commvault.com/additionalsetting/details?name=bAllowMultiInstances

Then you may install Media Agent using the same client name and hostname as used originally.

At this point everything should be operational, maybe DDBs in resync for some time.

 

But, yes, opening a support ticket may save you some time.

 

 

Jacek, Thanks for the reply.

For installing new package don't we have to uninstall the existing corrupted CS that corrupted as part of upgrade. Will it delete the existing backed-up data because the CS is also the MA?

CV document says uninstalling the media agent will not delete the backed-up data, but for uninstalling CS the media agents have to be uninstalled first. However, I’m not sure if we uninstall CS will it also delete the existing backups.

How to uninstall and reinstall CS without any issue with the backed-up data.

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