Interesting. I use the WD Red drives, too, and recommend them. Your drive's smartctl report is clean as far as wear & tear is concerned. That suggests a hardware problem elsewhere in your system. Bad cable, perhaps, or a failing power supply.
To me, it looks like a power problem: 50 out of 177 power cycles are power losses:
12 Power_Cycle_Count -O--CK 100 100 000 - 177 192 Power-Off_Retract_Count -O--CK 200 200 000 - 50
I had something like this in my system due to a bad SATA power split cable. Patrick -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
