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