On Saturday 28 July 2007, Johnny Hughes wrote: > Alexander Georgiev wrote: ... > > Ok, and should I mix disks from different vendors? I have read > > somewhere that this augments the reliability of the array, lowering > > the probability of 2 disks and more go down simultaneously? > > Not necessarily from different vendors as much as from different build > lots, etc. > > The theory is ... items build from the same components at the same time > and the same place should fail/EOL at about the same time (all things > being equal). > > In practice, I have not seen that. I havn't seen that either. But what I have seen is a raid controller acting up as a function of some random micro property of a specific drive model. So, I would very much not want more than one type of drive in a raid as that would double the amount of strangeness the controller would have to deal with. /Peter
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