this post was submitted on 15 Sep 2023
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Piracy: ꜱᴀɪʟ ᴛʜᴇ ʜɪɢʜ ꜱᴇᴀꜱ
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Drives in a NAS age at about the same rate between them. If you had multiple drives around the same age or from the same manufacturing batch, there's a higher chance they fail around the same age. After one disk in the array fails, you can insert a new drive and rebuild the array, but during the rebuild, all your drives are in heavier use than normal operation. If you only have one disk redundancy, you're vulnerable until that rebuild is complete.
oh wow, makes sense. It's a very slim chance, but not zero. but doesn't a three mirror setup has the same vulterability.
So if the scenario is that we bought two of the same type, use it equally, they'll die at the same time. This sentance is also true if we up the number.