I’ve been running Supermicro board with two identical WD20EFRX-68EUZN0 models. OS is Linux based on 3.2.0 kernel. These were partitioned by 6 partitions, each except swap is separate Mdadm RAID1 level (mirror). They were partitioned correctly with 4k-aligned partitions. Using deadline sheduler …

3 months later… … update on this: That was pre-failure event. Even if drive was ok so far it’s now failing tests: Extended offline: read failure, remaining 70% Errors below: [Sat July 6 21:28:01 2015] ata5.00: exception Emask 0x0 SAct 0x7c03ffff SErr 0x0 action 0x0 [Sat July 6 21:28:01 2015] a…

WD 2TB Red went offline

Internal Drives WD Red

Tomaszg March 13, 2015, 8:29pm 4

So… this isn’t solution, because:

sudo ./wd5741x64 -D4
WD5741 Version 1
Update Drive
Copyright (C) 2013 Western Digital Corporation

WDC WD20EFRX-68EUZN0 80.00A80 Drive update not needed

Any ideas so far?

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WD 2TB Red went offline

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