Connected to 2 SANs HP EVA 3000 and HP MSA 1500
There were problems on the HP MSA 1500. On this SAN there were 9 LUNs. 4 are for NW and 5 for Windows and Linux. Problem happened on all servers.
1) The problems were discovered after the move to production. Testing did not show this problem, but on looking at the testing methodology, they never tested a case that would have triggered it. The problem was discovered after we moved a volume on the cluster to this device, and then added a bunch of storage to the MSA san. Adding the storage required the creation of several Drive Arrays and LUNs, and also required the expansion of an existing Drive Array. It was the expansion of the Drive Array that triggered the condition that allowed this problem to occur.
2) This SAN is in production. Production processes have caused the problems I've mentioned before. As it happens, we're about ready to do another drive-array expansion, and are trying to build a methodology to work around the problem for the 2 weeks it'll take to expand the array.