Hello Robin, thank you for your feedback! 2014-08-29 9:46 GMT+02:00 Robin Hill <robin@xxxxxxxxxxxxxxx>: > That's a disaster waiting to happen. You should never leave a RAID array > in a degraded state for any longer than is absolutely necessary, > otherwise you might as well not bother running RAID at all. >> I could gather the following information: > Are the above --examine results from before or after the replacement? I took them before the replacement. > Was the old /dev/sdc data replicated onto the replacement disk? No, that is, not, yet. Luckily the guys in the data center kept the disk. > If the initial --examine results were done on the same disks as the > --assemble then I'm rather confused as to why mdadm would find a > superblock for one and not for the other. Could you post the mdadm and > kernel versions - possibly there's a bug that's been fixed in newer > releases. There will be no bug. I just was under a false assumption. > If the --examine was on the old disk and this wasn't replicated onto the > new one then I'm not sure what you're expecting to happen here - you've > lost 2 disks in a 3-disk RAID-5 so your data is now toast. Ok, now that is clear. I will use ddrescue to replicate the old disk to the new one and try again. Thank you, Fabio -- 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