We had a very interesting month. We have fixed performance problems on 3 different V7000 Systems in Europe - all of them are running much better now. The problems have been found in very different places: SAN, Cache Overload, Compression, ...
In no case we had to extend a system - all was solved with changes in setup only.
Do not hesitate to call us when you have performance problems with a Storwize or with a SVC. We will use BVQ to locate the reason for it. No risk for you, no purchase obligation.
Call us: http://tinyurl.com/CALL-BVQ
I have written a white paper about one of these customer situations: http://bvqwiki.sva.de/x/eICr
One Example was also really interesting - a metro mirror between two V7000 where a volume on side 1 produced very bad latencies - the reason was found in site 2!