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The Best Strategy

PowerHA changes the IBM i HA and DR game

PowerHA changes the IBM i HA and DR game
Illustration by Chris Gall

It’s been just over a year since IBM announced the game-changing PowerHA* for i, the Power* Systems solution for disaster recovery (DR) and high availability (HA). PowerHA for i is based on clustering, independent auxiliary storage pools (IASPs), and IBM System Storage* or IBM i integrated storage.

For those familiar with PowerHA for AIX*, an enormously successful product among AIX users, the underlying architectural constructs for PowerHA on i are analogous. (You may know PowerHA for AIX as High Availability Cluster Multi-Processing, or HACMP.) If you’re a traditional IBM i shop, you’re going to hear more about PowerHA for i as your colleagues in the IT industry move to IBM i 6.1 and the inevitable growth in PowerHA deployment ensues.

With a year’s perspective, now is a good time to gauge Power HA for i’s significance in the HA market and consider what lies ahead.

A Look Back

In January 2008, IBM announced PowerHA for i, a licensed program product that, when combined with IBM i’s high-availability switchable resources (HASR or Option 41), lets you deploy a hardware-based HA and DR solution.

Once the application has been deployed into IASPs, the data mirroring between systems is inherently self-managing.

Steve Finnes is the System i Business Continuity product manager with IBM. Steve can be reached at finnes@us.ibm.com.


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