Hi all, I have raid5 array working without problem for some months. A SATA cable failed and de raid5 works fine keeping the superblock persistent, but now, I can't get the old device inserted into the array. This is the array just now: root@Torero-2:/mnt/raid5 # mdadm --detail /dev/md0 /dev/md0: Version : 00.90.01 Creation Time : Tue May 31 19:37:37 2005 Raid Level : raid5 Array Size : 1367507456 (1304.16 GiB 1400.33 GB) Device Size : 195358208 (186.31 GiB 200.05 GB) Raid Devices : 8 Total Devices : 7 Preferred Minor : 0 Persistence : Superblock is persistent Update Time : Sun Jul 17 13:06:17 2005 State : clean, degraded Active Devices : 7 Working Devices : 7 Failed Devices : 0 Spare Devices : 0 Layout : left-symmetric Chunk Size : 512K UUID : c4ed8e45:2a036953:92bff479:7cf5bac9 Events : 0.162797 Number Major Minor RaidDevice State 0 8 1 0 active sync /dev/sda1 1 8 17 1 active sync /dev/sdb1 2 8 33 2 active sync /dev/sdc1 3 8 49 3 active sync /dev/sdd1 4 8 65 4 active sync /dev/sde1 5 8 81 5 active sync /dev/sdf1 6 8 97 6 active sync /dev/sdg1 7 0 0 - removed And I try to re-add the old disk in this way: root@Torero-2:/mnt/raid5 # mdadm /dev/md0 -a /dev/sdh1 mdadm: Cannot open /dev/sdh1: Device or resource busy What is wrong? What I am doing bad? Sdh1 is absolutely unused, so I don't understand the error "resource busy" Thanks, Paco Zafra. - 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