On 1/2/15 5:01 AM, Aryeh Leib Taurog wrote: > While doing this I discovered one of the usb cables is flaky, which > explains why the device (sdc below) wasn't always coming on line. Okay, that's probably the source of the problem, then. One of the times when you restarted, only the non-flaky one was available. That made md assemble the array with only that member, increasing the event count on that partition. So now the partitions are "different" (although perhaps you didn't change the data on them if you never mounted the array after the problem started). Your question is about how to reassemble them without a resync, which is understandable, but the reason md isn't doing that automatically is that it thinks they might be different. I personally would always do a resync in such a case. A flaky cable suggests that data on it is suspect, and this is one of the things RAID 1 is for: it allows you to copy clean data to suspect partitions. But I'm known to be data-paranoid. Other people may have different opinions/suggestions. -- Robert L Mathews, Tiger Technologies, http://www.tigertech.net/ -- 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
