On Wednesday January 23, mail@xxxxxxxxxxxxxxxx wrote: > Hi, > > I'm not sure this is completely linux-raid related, but I can't figure out where to start: > > A few days ago, my server died. I was able to log in and salvage this content of dmesg: > http://pastebin.com/m4af616df At line 194: end_request: I/O error, dev sdb, sector 80324865 then at line 384 end_request: I/O error, dev sda, sector 80324865 > > I talked to my hosting-people and they said it was an io-error on /dev/sda, and replaced that drive. > After this, I was able to boot into a PXE-image and re-build the two RAID-1 devices with no problems - indicating that sdb was fine. > > I expected RAID-1 to be able to stomach exactly this kind of error - one drive dying. What did I do wrong? Trouble is it wasn't "one drive dying". You got errors from two drives, at almost exactly the same time. So maybe the controller died. Or maybe when one drive died, the controller or the driver got confused and couldn't work with the other drive any more. Certainly the "blk: request botched" message (line 233 onwards) suggest some confusion in the driver. Maybe post to linux-ide@xxxxxxxxxxxxxxx - that is where issues with SATA drivers and controllers can be discussed. NeilBrown - 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
