Kevin Shanahan wrote: > Of the remaining drives, SMART attributes for /dev/sd[cghijkl] all show: > > 196 Reallocated_Event_Count 0x0032 100 100 000 Old_age Always - 0 > 197 Current_Pending_Sector 0x0012 100 100 000 Old_age Always - 0 > > /dev/sde shows: > > 196 Reallocated_Event_Count 0x0032 100 100 000 Old_age Always - 0 > 197 Current_Pending_Sector 0x0012 100 100 000 Old_age Always - 3 > > /dev/sdf shows: > > 196 Reallocated_Event_Count 0x0032 100 100 000 Old_age Always - 2 > 197 Current_Pending_Sector 0x0012 100 100 000 Old_age Always - 0 > > Unfortunately the original /dev/sdd isn't currently attached, but I'll > hook that up on Monday and check. I'd expect to see some high numbers > there. > >> These errors could be >> Result of something relatively benign, like unexpected power loss. > > Sorry, are you saying that about the errors from libata layer or just > the errors from the md layer? I wouldn't dream of contradicting David and I'm sure you've got nothing to worry about. What's a few bad blocks between friends anyway :) I will say that I have had very similar problems. I used ddrescue to read the area around the block until it read without error, and then re-wrote it. A subsequent smartctl -tlong /dev/sdX would then show no errors. In my experience the bad blocks returned regularly and I became very familiar indeed with forced rebuilds of arrays, array re-creation and other mdadm incantations as the errors hit the system. I will say that I've returned a *lot* of these under RMA (after discussions with Samsung engineers). Any drive that returns *fail* for a built-in self-test now gets 1 chance and is then RMAed. David -- "Don't worry, you'll be fine; I saw it work in a cartoon once..." -- 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
