On 04/30/2013 10:39 AM, Roberto Nunnari wrote: > Mikael Abrahamsson wrote: >> On Tue, 30 Apr 2013, Roberto Nunnari wrote: >> >>> How do I increase that timeout? >> >> for x in /sys/block/sd[a-z] ; do echo 180 > $x/device/timeout ; done > > what the... these are SECONDS! What on earth could delay a sata attached > disk read for 30 (now 180) seconds if not a disk failure? I OS hang? > Sorry about that question, but I don't understand.. I have never seen > such a problem. The worst horror stories on this mailing list are directly attributable to this problem. Usually after months or even years of apparently trouble-free operation. Consumer-grade drives intended for desktop usage are not "out-of-the-box" compatible with RAID. Some of them are configurable after each power-up to behave like an enterprise drive. The rest must be accommodated with extended driver timeouts. Search the list archives for "scterc", "timeout", and "URE" (or combinations thereof). 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
