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Oliver, <snip> So, 4 drives RAIDed in ASP2 would be better than in mirrored config? ASP1 is mirrored with 22 drives (6718) giving 193GB total capacity. We are at V5R1. I've read about LPP Journal Cache. Could that be helpful here? </SNIP> Yes, in my opinion, Raid would be better in this application because of the heavy write vs. read. In truth I personally like Raid better that mirroring for several reasons. Write performance is only one of them. The Journal Cache would not likely help because of the type of application, HA with DataMirror if I remember. You really want to get that journal record written as soon as possible. Jim Oberholtzer Senior Technical Architect Computech Resources, Inc.
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