Austin S. Hemmelgarn posted on Fri, 18 Mar 2016 07:38:29 -0400 as excerpted: >>> 188 Command_Timeout 0x0032 100 099 000 Old_age >>> Always >>> - 8590065669 >> >> Again, a non-zero raw value indicating command timeouts, probably due >> to those bad seeks. It'll have to retry those commands, and that'll >> definitely mean slowdowns. >> >> Tho there's no threshold, but 99 worst-value cooked isn't horrible. >> >> FWIW, on my spinning rust device this value actually shows a worst of >> 001, here (100 current cooked value, tho), with a threshold of zero, >> however. But as I've experienced no problems with it I'd guess that's >> an aberration. I haven't the foggiest why/how/when it got that 001 >> worst. > Such an occurrence is actually not unusual when you have particularly > bad sectors on a 'desktop' rated HDD, as they will keep retrying for an > insanely long time to read the bad sector before giving up. Which is why it's mystifying to me how it could be reporting a worst- value 1, when the device seems to be working just fine, and I don't recall even one event of waiting "an insanely long time", or even anything out of the ordinary, for anything on that device, ever. Tho I suppose it's within reason that whatever it was froze up the system bad enough that I rebooted, and I attributed the one-off to something else. But with no other attributes indicating issues, I remain clueless as to what might have happened and why that 1-worst, particularly so given the 0 threshold for that attribute and that it's an old-age indicator rather than a fail indicator, but the device is neither that old, nor as I said, in any other way indicating anything close to what that 1-worst value for just that single attribute implies. -- Duncan - List replies preferred. No HTML msgs. "Every nonfree program has a lord, a master -- and if you use the program, he is your master." Richard Stallman -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
