On Mon, 25 Jan 2016 16:29:02 +1100 Adam Goryachev <adam@xxxxxxxxxxxxxxxxxxxxxx> wrote: > 9 Power_On_Hours -O--CK 098 098 000 - 6435 > 9 Power_On_Hours -O--CK 095 095 000 - 23178 2nd drive has almost 4x as much power-on time than the first one. My guess would be that it accumulated all that write usage back before you put it into this RAID1. If you want to ensure the RAID1 usage is even, record the SMART data you have now, and compare to the readings you will have a month later. -- With respect, Roman
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