Quick question. I have an Ex30 with Jx30 expansion (40 drives total, dual controller). The Ex30 is hooked in to a Brocade 5100 with SanLink2 8GB Fiber connections for the clients. there are only about 6 active clients at any given time. It's configured as RAID 50. I've noticed a decrease in read performance recently and I can't identify the root cause. I'm getting a solid 1100-1200 MB/sec write and the read is pretty jumpy, ranging from about 300-700 MB/sec. I'm using Blackmagic speed test. I believe when I initially set this up a couple years back I was maxing out the bandwidth on read and write, but the read definitely seems to be a little weak.
Does anyone have any suggestions on what may be causing this issue? I'm not seeing any errors, I routinely run maintenance on the Xsan file system, and I'm getting the same results regardless of the client.