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merrittr's avatar
merrittr
Icon for Contributor II rankContributor II
25 days ago

putting a 2 node SL1 HA database env in maintenance

I have 2 databases in an HA setup  I see   Enable Cluster Maintenance as one of the choices in coro_config can I select this on both database and be able to do VMWare snapshots before doing upgra...
merrittr's avatar
merrittr
Icon for Contributor II rankContributor II
17 days ago

OK so basically stop and start the pacemaker on the server I want as primary

TonyAndres's avatar
TonyAndres
Icon for Moderator rankModerator
17 days ago

Hello Rob,

Quite the opposite, you run the commands on the current primary node, as this will force a failover and cause the current secondary node to promote itself.

For example, let's say DB02 is the current primary and you want DB01, the current secondary, to be the primary. You would log into the CLI of the DB02 appliance and run the commands to stop and start pacemaker. When you stop pacemaker on DB02, CRM will begin the failover process. Once the failover is complete, DB02 will be the secondary node and DB01 will be the primary node.

Antonio Andres

Principal Technical Support Engineer | ScienceLogic