Overview

What is IBM PowerHA SystemMirror?

IBM offers PowerHA SystemMirror, for high availability clustering.

PowerHA SystemMirror

10 out of 10

March 24, 2022

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

IBM PowerHA SystemMirror- Vikas

10 out of 10

March 14, 2022

Incentivized

As we are running with critical applications and databases including oracle, db2, and others. To make them highly available we are using …

Use PowerHA to keep your critical applications running

9 out of 10

July 19, 2021

Incentivized

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 …

IBM PowerHA Use it or Not!!!

9 out of 10

August 29, 2017

Incentivized

PowerHA is currently used by the IBM Power Infrastructure Support group for high-availability clustering and to replicate our user …

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Tech Details

What is IBM PowerHA SystemMirror?

IBM PowerHA SystemMirror Technical Details

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August 29, 2017

IBM PowerHA Use it or Not!!!

Angel Velez

IBMi Systems Engineer

TBC Corporation (Automotive, 10,001+ employees)

Score 9 out of 10

Vetted Review

Verified User

Incentivized

Use Cases and Deployment Scope

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.

Pros and Cons

Asynchronous geographic mirroring extends the host-based replication to our DR environment.
FlashCopy provide us with a point in time snapshot of our Production environment from which we can run our daily backups without downtime.
Since PowerHA runs at the kernel level it allows the system to send a message from the primary system to the backup or secondary system when the node has crashed.

IBM Sybase replication has been an issue for those who don't [use] MIMIX on their systems to keep the Sybase up to date.
The graphical interface really needs an update.
Technical support isn't as responsive as it should be.

Likelihood to Recommend

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.