On Thu, Oct 27, 2011 at 2:41 PM, Jarry <mr.ja...@gmail.com> wrote: > Hi, perhaps someone could explain this to me: > > I have bouth two the same hard-drives. The same model > (Hitachi HUA722050CLA330), the same firmware (JP20A3EA), > the same size (500GB). Well, not exactly. Both hdparm > and fdisk report different number of sectors (976771055 > versus 976773168). Although not a big difference, yet > I expected them to be exactly the same (want to use > them for raid1). > > So how is it possible they do not have the same number > of sectors? I have bought them from one supplier, even > their serial numbers are very close (only the last 2 > characters out of 24 are different)...
Should be fine. The raid implementation will use the smaller of the two for a baseline. As for why, I can only make educated guesses. -- :wq
