IBM PowerHA SystemMirror

In our project, we are using IBM PowerHA SystemMirror to make our DB2 database highly available. We can't afford any downtime during production hours.

When we were planning for our underneath OS migration from AIX 7.1 TL05 SP02 to AIX 7.2 TL02SP03 we moved the active database to another node. After failover, we rebooted the primary node and successfully upgraded the OS on the node. Once we perform the basic health check then we will fall back on the primary node in scheduled maintenance.

As we are running with critical applications and databases including oracle, db2, and others. To make them highly available we are using Power HA System Mirror which is helping to run the environment with minimal downtime window in case of worst scenarios as well as in case of maintenance which is helping a lot in my business.

In every organization, we have some of the critical applications in on Premise datacentre were a lot of dependencies in a picture in terms of application as well as a business where we can make highly available to this application by using Power HA Systemmirror by using this we can avoid last time surprises.

PowerHA is used across the organization for our most critical apps. It is used to reduce downtime on our critical apps in the event of a system failure.

It is well suited if you have a mission-critical application that you need to keep running. While there will still be some downtime while it fails over, it is greatly reduced.

PowerHA is currently used by the IBM Power Infrastructure Support group for high-availability clustering and to replicate our user profiles to our DR infrastructure. Is also use for asynchronous geographic mirroring and space-efficient FlashCopy where we perform our backups.

If you have an environment where you have to replicate your Sybase I would recommend an implementation that includes MIMIX for PowerHA as part of the entire environment, but if you have a Sybase that never changes and you run all your applications on an iASP the IBM PowerHA SystemMirror is the solution for your business.