Sorry for newbie question. Software-RAID-HOWTO said the following would stop an array for shutdown. mdadm complains the array is still in use. Why? mdadm --stop --scan md: md0 still in use. mdadm: fail to stop array /dev/md0: Device or resource busy /dev/md0 is not mounted. There is no filesystem built on the partitions yet. Just mdadm --create --verbose /dev/md0 --level=raid1 --raid-devices=2 /dev/sda1 /dev/sdb1 cat /proc/mdstat Personalities : [raid1] md0 : active raid1 sdb1[1] sda1[0] 71826496 blocks [2/2] [UU] unused devices: <none> mdadm --query --detail /dev/md0 /dev/md0: Version : 00.90.01 Creation Time : Mon Aug 23 20:54:44 2004 Raid Level : raid1 Array Size : 71826496 (68.50 GiB 73.55 GB) Device Size : 71826496 (68.50 GiB 73.55 GB) Raid Devices : 2 Total Devices : 2 Preferred Minor : 0 Persistence : Superblock is persistent Update Time : Mon Aug 23 21:16:09 2004 State : clean, no-errors Active Devices : 2 Working Devices : 2 Failed Devices : 0 Spare Devices : 0 Number Major Minor RaidDevice State 0 8 1 0 active sync /dev/sda1 1 8 17 1 active sync /dev/sdb1 UUID : 4b2b674d:2b170d5e:3fbbf170:373f1bee Events : 0.2 Thanks, BobH -- ------------------------------ Bob Hillegas bobhillegas@xxxxxxxxxxxxxx - 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