Another bit of useful information - can you post the output of smartctl on all your drives? smartctl -x /dev/sd[a,b,c...] Seeing as the drives are Seagate 1TB drives, I suspect they do support ERC and timeout mismatch is not the problem, but this will tell us. I'll let others chime in with recovery info, but this information will definitely help them. Cheers, Wol On 19/07/16 17:29, Amit Biswas wrote: > Greetings! > > Backup server was acting up and the issue was the drives (all of them) > :( Could use some guidance or verdict. > > It has a total of 6 drives: sda,b,c,d,e,f. From the superblock info > (attached), there is a raid 1, and a raid 10 volume. Problem is all > the disks are part of both raid volumes (according to superblock). > > I am currently booted into an ubuntu live disk shell. > -- 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