I tried following steps to remove a RAID array. While /dev/md0 was removed
the two disks comprising the array still show them attached to it:
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sdf 8:80 0 1.8T 0 disk
└─md0 9:0 0 1.8T 0 raid1
sdd 8:48 0 1.8T 0 disk /mnt/data3
sdb 8:16 0 1.8T 0 disk
├─sdb2 8:18 0 100G 0 part /opt
├─sdb3 8:19 0 1.3T 0 part /data1
└─sdb1 8:17 0 400G 0 part /home
sr0 11:0 1 1024M 0 rom
sde 8:64 0 1.8T 0 disk
└─md0 9:0 0 1.8T 0 raid1
sdc 8:32 0 1.8T 0 disk /mnt/data2
sda 8:0 0 232.9G 0 disk
├─sda2 8:2 0 32G 0 part [SWAP]
├─sda3 8:3 0 200.8G 0 part /
└─sda1 8:1 0 100M 0 part /boot/efi
Using cfdisk I deleted the partitions on /dev/sd{e,f} but cannot start
recreating the RAID1 because mdadm tells me it's busy.
A clue is needed so I can rebuild the RAID1 and rebuild my backup bank.
TIA,
Rich
