Hi, I'm running openSUSE 11.1 with KDE 3.5.10. /home mounts a RAID1 mirrored array, /dev/md0, made up of two identical 1TB Western Digital disks, bought about 6 to 9 months ago. mdadm has kicked one of these disks out of the array twice in the last 24 hours. The first time this happened, I issued #mdadm --manage /dev/md0 --add /dev/sdd1 mdadm: re-added /dev/sdd1 so it appeared to be happy to put this disk back into the array. However, tonight it's happened again, and the same command results in #mdadm --manage /dev/md0 --add /dev/sdd1 mdadm: Cannot open /dev/sdd1: Device or resource busy Does this mean that sdd is failing and needs to be replaced? I sort of know the answer I'm going to get, but thought I'd check here first, in case I was missing something obvious. Bob -- Registered Linux User #463880 FSFE Member #1300 GPG-FP: A6C1 457C 6DBA B13E 5524 F703 D12A FB79 926B 994E openSUSE 11.1, Kernel 2.6.27.7-9-default, KDE 3.5.10 Intel Core2 Quad Q9400 2.66GHz, 4GB DDR RAM, nVidia GeForce 9200GS -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org