On 08/25/2016 10:54 PM, Benjammin2068 wrote: >> You either must have >> it enabled, or you *must* apply the kernel driver timeout work-around >> (180 seconds) for that drive. Failure to do so results in crashed arrays. > > For the ST1000DM003, its SMART capabilities states "SCT Status Supported" -- What does that mean in comparison with the other HD103SJ drives? > > It does SCT but doesn't let the user control it or it doesn't do it at all? ERC is a feature within the SCT standard. For modern hard drives, claiming "SCT" support is comparable to a bottled water supplier advertising that their product is wet. > (smartctl -l scterc /dev/sde yields a message that implies control is not supported) ERC on the other hand is a valuable feature that modern drive manufacturers make you pay extra for. >> Enterprise and NAS drives work out of the box. Desktop/green drives do not. > > Yea - I didn't buy any green drives (purposefully anyway) for this system. I originally wrote that sentence as "Desktop drives do not." I added "/green" to clarify that some non-enterprise, non-NAS drives aren't marketed as desktop drives, but still lack ERC functionality. Your ST1000DM003 is marketed as a desktop drive. Seagate's product page for this model has links to other models for specialty use cases, including NAS. >> Some reading assignments from old discussions (read whole threads if you >> have time): >> >> http://marc.info/?l=linux-raid&m=139050322510249&w=2 >> http://marc.info/?l=linux-raid&m=135863964624202&w=2 >> http://marc.info/?l=linux-raid&m=135811522817345&w=1 >> http://marc.info/?l=linux-raid&m=133761065622164&w=2 >> http://marc.info/?l=linux-raid&m=132477199207506 >> http://marc.info/?l=linux-raid&m=133665797115876&w=2 >> http://marc.info/?l=linux-raid&m=142487508806844&w=3 >> http://marc.info/?l=linux-raid&m=144535576302583&w=2 > > Thanks, will go read. You will find detailed explanations for my comments above in these old threads. Phil -- 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
