We have a virtual environment and are using an IBM DS3500 SAN. We definitely need to add more storage. As it stands, the enclosure has 96 slots. We've filled 85 of those mainly with 600Gb 10K disks. The remaining 11 are empty.
So here's the dilemma. Our external consultants recommended that we sort of move away from buying disks for the DS3500 and focus on a new enclosure like a V3700. The reason being that the DS3500 is a discontinued product and if anything went wrong that obtaining controllers, disks or components will be difficult.
I don't get that as we have things like HP Proliant SAN's that we use and are around 7yrs old and we can still purchase content for them.
The cost different between buying 11 disks in the current enclosure and having to buy a new enclosure is like a £4500 difference.
Any ideas on your recommendations guys?