Brian Tao taob@risc.org asks:
Does Netapp have any numbers that they could share publically onhow often they see filesystem failures in the field (i.e., double disk failure, spare drive bug, etc.) that would require restoring all the data from tape?
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Anissa.Mohler@netapp.com (Mohler Anissa) replies: [... theoretical background omitted ... ]
As far as actual field numbers... I really don't know ;(
I don't imagine that Network Appliance will want to talk about the actual frequency of filesystem failures publicly (and this mailing list is public). We all know that there is at least one commercial competitor watching which would have few scruples in spreading the word that "NetApp systems have a MTBFFF of only X years", while saying nothing about their own figures.
Chris Thompson University of Cambridge Computing Service, Email: cet1@ucs.cam.ac.uk New Museums Site, Cambridge CB2 3QG, Phone: +44 1223 334715 United Kingdom.