On 04/18/2013 07:01 PM, mathog wrote: > How do they come up with the MTBF values for disks anyway? Clearly it > is not based on watching a large > sample of disks for countless years!
I am not intimately familiar with how they come up with the values (else I probably would be at liberty to comment), but I do know there is an increasing diversity even within the same manufacturer and even the same batch, so my short answer to the subject is "not really." A really great paper that examines the performance side of this, by a guy I had the privilege of sharing a room with two CMU Parallel Data Lab retreats ago: www.usenix.org/event/hotos/tech/final_files/Krevat.pdf Again, this paper is only regarding the performance side, not MTBF, but I would expect (from only a superficial, perhaps wholly incorrect standpoint) that this would correlate to the failures aspect as well. Just me speculating here. Best, ellis _______________________________________________ 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
