On 05/03/2013 09:52 AM, John Stoffel wrote: > > After watching endless threads about RAID5 arrays losing a disk, and > then losing a second during the rebuild, I wonder if it would make > sense to: > > - have MD automatically increase all disk timeouts when doing a > rebuild. The idea being that we are more tolerant of a bad sector > when rebuilding? The idea would be to NOT just evict disks when in > potentially bad situations without trying really hard. This would be conterproductive for those users who actually follow manufacturer guidelines when selecting drives for their arrays. Anyways, it's a policy issue that belongs in userspace. Distros can do this today if they want. There's no lack of scripts in this list's archives. > - Automatically setup an automatic scrub of the array that happens > weekly unless you explicitly turn it off. This would possibly > require changes from the distros, but if it could be made a core > part of MD so that all the blocks in the array get read each week, > that would help with silent failures. I understand some distros already do this. > We've got all these compute cycles kicking around that could be used > to make things even more reliable, we should be using them in some > smart way. But the "smart way" varies with the hardware at hand. There's no "one size fits all" solution here. 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
