I have a meeting with DELL today to discuss some of our SAN setup and I want to be able to talk about what I am seeing. We have an average Latency of 20ms. I'm attaching a screenshot of what it is currently showing over an extended time range.
If there are any iSCSI SAN gurus out there, is what I'm looking at a problem? I think it is starting to show the signs of one. The Latency is across all the servers as well, and previously I thought it was just our main dataserver.
On a sidenote: We have a PS5000 and PS6000 both set up as RAID 50. We are looking at recommendations for another container and it looks like it will be specifically for SQL so I'm thinking RAID 10. The only thing is that PS6000XV (which looks to be the best) will only give around 4.2 TB on RAID 10 at the most. I'm wondering if the RAID 10 will even give us the best performance as well.