October 19, 20214 yr Hi all I run an Unraid server (v6.9.2) on a HP Proliant DL180 G6 filled with 11 x 3TB HGST SAS Drives. (dual parity, 9 data). The drives are second hand refurbished drives bought in bulk, they are cleared and checked before sale, and I also preclear them on receipt. Been running absolutely fine for months, if not years, with just a few drives failed every so often....maybe 3 drives failed in 2 years. I use HGST drives as these are the most reliable according to BackBlaze stats. In the past week, I've had 7 drive failures.....is this just the drives coming of age, and is purely coincidence, or should I look at a possible backplane issue, or an issue with the HBA, which is a H220?
October 19, 20214 yr Your diagnostics might provide more details. What do you consider "failures" ? Are you sure the drives are dead or can it be only connection failures ? But so many failures on a short time look more like a HW issue. Cables, PSU, disk controller, cooling, etc.
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