If the mean time to failure of a single disk is 100,000 hours, then the mean time to failure of some disk in an array of 100 disks will be ____________
(a) 100 hours
(b) 10 days
(c) 10 hours
(d) 1000 hours
This question was posed to me in exam.
This key question is from RAID Structure topic in division Mass-Storage Structures of Operating System