On 24/07/17 20:58, Dark Penguin wrote: > On 24/07/17 22:36, Wols Lists wrote: >> On 24/07/17 16:27, Dark Penguin wrote: >>> On 24/07/17 17:48, Wols Lists wrote: >>>>> On 22/07/17 19:39, Dark Penguin wrote: >>>>>>> Greetings! >>>>>>> >>>>>>> I have a mirror RAID with two devices (sdc1 and sde1). It's not a root >>>>>>> partition, just a RAID with some data for services running on this >>>>>>> server. (I'm running Debian Jessie x86_64 with a 4.1.18 kernel.) The >>>>>>> RAID is listed in /etc/mdadm, and it has an external bitmap in /RAID . >>>>> >>>>> As an absolute minimum, can you please give us your version of mdadm. >>> Oh, right, sorry. I thought the "absolute minimum" would be the kernel >>> version and the distribution. :) >>> >>> mdadm - v3.3.2 - 21st August 2014 >>> >>> >> I was afraid it might be that ... >> >> You've hit a known bug in mdadm. It doesn't always successfully assemble >> a mirror. I had exactly that problem - I created one mirror and when I >> rebooted I had two ... >> >> Can't offer any advice about how to fix your damaged mirror, but you >> need to upgrade mdadm! That's two minor versions out of date - 3.4 and 4.0. >> >> Cheers, >> Wol > > My mirror is not damaged anymore - it's quite healthy and cleanly > missing some information I've overwritten. :) Of course, there's no way > to help that now - that's what backups are for. I just wanted to learn > how to avoid this situation in the future. And learn how is it really > supposed to handle such things. > > Is this bug fixed in the newer mdadm? Or is it "known, but not fixed yet"? > > Long fixed :-) Cheers, Wol -- 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