On Wed, 9 Mar 2016 07:43:16 +0100 (CET) Mikael Abrahamsson <swmike@xxxxxxxxx> wrote: > I had very high failure rates of the early 2TB WD Greens, but I still have > some WD20EARS and WD20EADS that are alive after 58k hours. In my experience a major cause for the WD failures is that they develop rust on the PCB contacts which connect to the drive insides, see e.g.: http://ods.com.ua/win/rus/other/hdd/2/wd_cont2.jpg http://www.chipmaker.ru/uploads/monthly_12_2013/post/image/post-7336-020632100%201388236036.jpg and: https://www.youtube.com/watch?v=tDTt_yjYYQ8 If such WD drive has just developed several unreadable sectors, this often can be solved by checking and cleaning those contacts, then overwriting the whole drive with zeroes (or well, with whatever you want, the point is to rewrite all the "badly written" areas), then it will likely work fine for years after that. > One of the slightly lower power on time ones has a scary load cycle count > though: > > Device Model: WDC WD20EARS-00S8B1 > 9 Power_On_Hours 0x0032 033 033 000 Old_age Always - 49255 > 193 Load_Cycle_Count 0x0032 001 001 000 Old_age Always - 1317839 This can be disabled: http://www.storagereview.com/how_to_stop_excessive_load_cycles_on_the_western_digital_2tb_caviar_green_wd20ears_with_wdidle3 http://idle3-tools.sourceforge.net/ -- With respect, Roman
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