Hi John, I do the summary of disk and states : /dev/sdb : 1TB : OK /dev/sdc : 1TB : ?? /dev/sdd : 2TB : ddrescued /dev/sde : 3TB : Not synchronized Something is wrong in this list. It seems that i have remove a wrong disk. I should investigate with my friends tomorrow evening for us, afternoon for you. I will on the road tomorrow. And it is may be free for you? I wish you a good eve for this evening, and see you next year ;-). Best Regards Sylvain Depuille ----- Mail original ----- De: "John Stoffel" <john@xxxxxxxxxxx> À: "Sylvain Depuille" <sylvain.depuille@xxxxxxxxxxx> Cc: "John Stoffel" <john@xxxxxxxxxxx> Envoyé: Mercredi 31 Décembre 2014 18:27:03 Objet: Re: Re: Re : Re: Big trouble during reassemble a Raid5 Sylvain> But the missing disk is the rescued disk! I understand that, but we're looking to get the RAID5 up and working again, but the event count looks wrong on that disk, so it shouldn't be used to re-assemble the array. There is going to be some data loss here, but let's minimize it and get the array going again. Sylvain> And the 3TB should be rebuild, because i have change It just Sylvain> before the issue :-(sorry iPhone in French) I think it's ok, since the other three disks have matching event counts. It's the /dev/sdc1 that's behind the rest, so it needs to be excluded at first. Try it out and let me know. Sylvain> I haven't mailings list in copy because html :-( Sylvain> If necessary i Will revend the mail from House! Sylvain> Best Regards Sylvain> Sylvain Depuillr Sylvain> Envoyé depuis un telephone portable >> Le 31 déc. 2014 à 17:08, John Stoffel <john@xxxxxxxxxxx> a écrit : >> >> sylvain> It's my fault too, because the mailing list doesn't accept sylvain> HTML format. And my provider doesn't offer plain text option sylvain> with the mobile site :-( >> >> It's a total pain at times. I'm still reading email with plain ascii >> most of the time, I don't care for HTML email generally since it just >> gets in the way. >> sylvain> Back to the issue : >> sylvain> I have stop the raid. sylvain> mdadm --stop /dev/md2 sylvain> mdadm: stopped /dev/md2 >> sylvain> cat /proc/mdstat sylvain> Personalities : [raid1] [raid6] [raid5] [raid4] sylvain> unused devices: <none> >> sylvain> And when i try to re-assemble, the command is aborting : sylvain> mdadm --assemble --force /dev/md2 /dev/sd[bcde]1 sylvain> mdadm: /dev/md2 assembled from 2 drives and 1 spare - not enough to start the array. >> >> So if I look at the event counts, there's a mismatch between >> /dev/sd[bde]1 and /dev/sdc1. So let's try to assemble without /dev/sdc1: >> >> mdadm -vv --assemble --force /dev/md2 /dev/sdb1 missing /dev/sdd1 /dev/sde1 >> >> and see what happens then. With three out of the four devices, the >> RAID5 array should start up, and then you can add in /dev/sdc1 to >> rebuild the parity. >> >> John -- 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
