Joachim Schrod wrote:
David Brodbeck wrote:
Sure. As anyone who's ever had a couple of hard disks fail can attest, MTBF numbers are mostly fiction.
Well, I can attest that you don't seem to know much about statistics. ;-) ;-)
At one of my customers, 10,000s of disks are in use at the servers. There MTBF numbers are reliable indicators of how much disks one has to buy in advance to exchange the defect ones.
For the record, I should add that one needs to collect MTBF numbers (actually, MTTF and MTTR numbers) onself. Data from other organizations is not reliable, the variance seems to be quite high. Therefore, this may be only of use for large installations, and not for SOHO or mid-sized environments that are probably most common on this mailing list. Joachim -- =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Joachim Schrod Email: jschrod@acm.org Roedermark, Germany -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org