Interesting topic, one that I feel will continue gaining ground throughout our community within the next couple of years.......

Our target operating model for development is separate frames and data center locations from production. We don't replicate them as of now but I have heard some talk of doing so. Seems overzealous on the surface but some of our applications each have development/test/QA/UAT partitions in the promotion path and their development is so frequent that extended downtime to any one of their lower level DEV environments would be very costly.

For our lower tier applications there is no reason to replicate their respective development partitions. In the event of a disaster we would completely rebuild from backups or build a new partition and restore their development libraries only.

These are the questions I would be thinking about:
1) Do you have a mutually agreed Recovery Time Objective (RTO) and Recovery Point Objective (RPO) for your development environments?
2) Is the RTO greater than the amount of time it would take for us to reconstruct a development partition in the event of a catastrophic failure?
3) Can we meet or exceed the development system's RPO for all relevant data that was saved to a backup device? In other words, can you tolerate the lost data between the failure and the most recent backup?

Bradford Lovelady

Operating Systems Engineer
Technology Infrastructure Services

Wells Fargo Bank l 200 Wildwood Pkwy l Birmingham, AL 35209
MAC W2691-010
Tel 205-938-1999 l Cell 205-826-2834


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-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Hart, Doug - EI
Sent: Wednesday, October 03, 2012 8:50 AM
To: MIDRANGE-L@xxxxxxxxxxxx
Subject: HA of Development LPARs

We have 25 LPARs of which 8 are development/sys test. These are on a good size 740 (terabytes of DASD). We run HA (MIMIX) for our production LPARs.
My question is does anyone run a full HA environment for their development? With all of the redundant hardware, software costs, MIMIX licenses, bandwidth, and overhead of supporting more partitions I just can't see how it is justified. We are a manufacturing company.

Comments please.


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