Hi Wesley, On 01/19/2015 06:01 PM, Wesley W. Terpstra wrote: > I was in the middle of a reshape of this 4-disk raid5 when something > rebooted the computer. The system seems otherwise fine, and I suspect > someone in the house. > > What is the correct next step? Should I try --run ? I would obviously > prefer not to lose the data on this array. I expect that the reshape > was NOT complete, so just recreating the array will probably corrupt > its contents. > > Kernel version 3.17.8 and mdadm version 3.3.2. There have been many bug fixes to mdadm since that kernel was retired. You should temporarily boot a current liveCD (my favorite is systemrescuecd) and do "mdadm -Afv /dev/mdX /dev/sdX ..." Show us the output of that if it doesn't work (it should resume your reshape). When it is done reshaping/recovering, consider upgrading your kernel. > Thanks for any help. If I lose this array, I am going to face a lot of grief... I shouldn't have to say this, but RAID is for availability, not for data security. You still need a backup system for any important data. Phil -- 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