Solo uso un disco iscsi nuevo para reemplazar el disco iscsi antiguo en Ubuntu 14.04. Tuve que montar uno nuevo, migrar datos y reemplazar el punto de montaje (/var/vcap/store). Pero el antiguo objetivo de la ISCSI todavía existía.
colocated/1a24af4c-ad6a-4ac8-b3d4-c17e64397be4:/var/vcap/bosh_ssh/bosh_dd4aa9f0a6194c1# dmsetup ls
3600a09803830374d763f4a314a6e4544-part1 (252:3)
3600a09803830374d782b4a4445544176 (252:0)
3600a09803830374d782b4a4445544176-part1 (252:1)
3600a09803830374d763f4a314a6e4544 (252:2)
colocated/1a24af4c-ad6a-4ac8-b3d4-c17e64397be4:/var/vcap/bosh_ssh/bosh_dd4aa9f0a6194c1# df -h
Filesystem Size Used Avail Use% Mounted on
udev 3.9G 4.0K 3.9G 1% /dev
tmpfs 802M 200K 802M 1% /run
/dev/xvda1 2.9G 1.2G 1.6G 44% /
none 4.0K 0 4.0K 0% /sys/fs/cgroup
none 5.0M 0 5.0M 0% /run/lock
none 4.0G 0 4.0G 0% /run/shm
none 100M 0 100M 0% /run/user
/dev/xvdc2 91G 84M 86G 1% /var/vcap/data
tmpfs 1.0M 0 1.0M 0% /var/vcap/data/sys/run
/dev/mapper/3600a09803830374d763f4a314a6e4544-part1 20G 44M 19G 1% /var/vcap/store
colocated/1a24af4c-ad6a-4ac8-b3d4-c17e64397be4:/var/vcap/bosh_ssh/bosh_dd4aa9f0a6194c1# multipath -ll
3600a09803830374d782b4a4445544176 dm-0 NETAPP ,LUN C-Mode
size=40G features='1 queue_if_no_path' hwhandler='0' wp=rw
|-+- policy='round-robin 0' prio=0 status=enabled
| `- 14:0:0:177 sde 8:64 failed faulty running
`-+- policy='round-robin 0' prio=0 status=enabled
`- 15:0:0:177 sdc 8:32 failed faulty running
3600a09803830374d763f4a314a6e4544 dm-2 NETAPP ,LUN C-Mode
size=20G features='1 queue_if_no_path' hwhandler='0' wp=rw
|-+- policy='round-robin 0' prio=4 status=active
| `- 12:0:0:4 sdd 8:48 active ready running
`-+- policy='round-robin 0' prio=1 status=enabled
`- 13:0:0:4 sda 8:0 active ready running
Por ejemplo, quiero eliminar 3600a09803830374d782b4a4445544176 iscsi como se muestra arriba.