Les Mikesell wrote: > On Tue, Sep 2, 2014 at 1:33 PM, <m.roth at 5-cent.us> wrote: <snip> >>> But sdd _should_ have the correct data - it just isn't being detected >>> as a raid member. I think with smaller devices - or at least devices >>> with smaller partitions and FD type in the MBR it would have worked >>> automatically with the kernel autodetect. <snip> >> Anyway, the upshot was my manager was rather annoyed - I *should* have >> pulled sdc, and put in a new one, and just let that go. I still think it >> would have failed, given the inability of mdadm to find the info on sdd. >> We wound up just remaking the RAID, and rebuilding the mirror over the >> weekend. > > I think either adding the ARRAY entry in /etc/mdadm.conf and rebooting > or some invocation of mdadm could have revived /dev/md4 with /dev/sdd > (and the contents you wanted) active. Tried that. No joy. mark