I do not have any links for you - sorry. As a consultant I have come across multiple clients in the past with issues on their storage systems. I do acknowledge that I have not seen many clients using them for SQL storage in the past few years so it is quite reasonable to believe that any issues they may have had could be rectified in later versions of their hardware/firmware. I also note that EVERY SINGLE CLIENT I have EVER had with ANY flavor of SAN has done a VERY poor job of implementing/operating said storage system. I have had more than one meeting with CIOs to tell them their seven figure investment was CAUSING performance issues as opposed to helping to ALEVIATE them. There are many many ways you can go wrong when provisioning a SAN for SQL workloads. I highly recommend getting some professional help before putting new storage online - it is soooooOOOOO much easier to do things right from the get-go than to fix problems after rollout!