On Apr 7, 2014, at 11:53 AM, Prentice Bisbal <[email protected]> wrote:
> 4. SSDs wearing out. Is that still a concern, or are lifespans getting > better?I think Jim Lux once did calculations on that list to show that with > wear-leveling and everything else, even if you wrote to an SSD constantly, it > would still outlive the average lifespan of a cluster. As long as you use enterprise-grade SSDs (e.g., Intel's stuff) with overprovisioning, the nand endurance shouldn't be an issue over the lifetime of a cluster. We've used SSDs as our nodes' system disks for a few years now (going on four with our oldest, 324-node production system), and there have been no major problems. The major problems happened when we were using the cheaper commodity SSDs. Don't give in to the temptation to save a few pennies there. Glenn _______________________________________________ Beowulf mailing list, [email protected] sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
