We are replacing a Clariion CX320 SAN because it is old (7.5 years). It has been otherwise very reliable. Yes, we have replaced a lot of disks, battery modules, and maybe even one of the controllers, but the failure rate is not very high -- maybe an issue once every nine months or so.
The new SAN is an equallogic with similar performance characteristics (IOPS, network, etc). Even though much newer the technology really hasnt changed much (unless we wanted 10gig network or SSDs disks, which I would have LIKED to have but couldnt justify spending twice the price). I think the big change is probably the price point, we paid 40k for the CX3 back then and the equallogic is half that price for similar setup.
I want to keep the CX3-20 in production but I have to make a some case that this thing should be able to live another 4-5 years without a high cost of ownership. We would have to source parts outside of EMC since this is end-of-life (which actually isnt bad because the parts are very inexpensive in the third party. The only drawback is it takes 1-2 days to get parts instead of same day within hours).
So the question is: is anyone really running these things for 12 years and they are as rock solid as before? The failure rate is supposed to go up with time but I am not seeing it happen. We have 3 SANs that are 7+ years old now. We had issues at years 2-5 but the last 2.5 years havent been bad. maybe with the 3 7+ year old SANs we have replaced a total of 4 disks.
I know in talking to resellers/vendors that there are many people that run a "lot of these end-of-life" SANs but I never get to talk to the people behind them. Is it a constant headache they are battling but they are running cabinets of this stuff they cannot justify the cost to upgrade? Or maybe they are hosting companies and they just cannot afford the downtime of migrating VMs... or are these things really rock solid and they will just last forever if you maintain them and "end-of-life" is just EMC's way of nudging us to buy newer gear?