> from:Mikael Abrahamsson >On Mon, 28 Dec 2009, jin zhencheng wrote: > >> I think maybe the disk deal with one write comnd with errror,but the >> disk maybe is also ok,and rewrite to other place or rewrite again >> will be good. >> >> why one write error ,set the whole disk faulty. > >If the disk has *WRITE* errors, something is seriously wrong. Read errors >is one thing, write errors is completely different. > >> Disk if very expensive! > >Most drives have at least 2-3 years warranty and that should be used. If >the drive has write errors, then it's really time to replace it, it won't >be reliable. I agree, the capacity and safety of data is the most important issue for raid layer, if a write error happens on one drive, more errors may soonly follow, where and how much will be remapped? it would involve complicated algorithms and may cause serious performance decline. ------------------ spren.gm@xxxxxxxxx 2009-12-28 -- 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
