Hi all, I've a strange issue. I've a PC with 2 HDs in RAID-10 f2 with bitmap. There are actually 3 md devices, boot, swap and root. It happens that one SATA cable is/was flaky, so sometimes, at boot, /dev/sdb does not show up. The RAID starts in degraded mode, tracking the writes in the bitmap. On the next reboot, /dev/sdb is again there, so it is possible to re-add it. The md device resyncs what is to be resynced, very quickly, due to the bitmap. Later, if I run a check, usually a lot of mismatches show up. After repair (or add) further checks return zero mismatches. Without boot failure, no mismatches showed up after check. On a different PC, with same setup, but good cables, something similar happened. I tried, just for testing, to fail-remove-writeSomething-reAdd one HD, a then run a check. This was also returned some (few) mismatches. Now, this test I did not repeat, so I cannot say this was always the case. Nevertheless I'm a bit concerned. Is this behaviour somehow expected? Is there something special to take into account when removing and re-adding a RAID component? Thanks a lot in advance, bye, -- piergiorgio -- 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
