pool in pool

gistfile1.txt

Josephs-MacBook-Pro:zfs joe$ dd if=/dev/zero of=poolonzvol.bin bs=1m count=256
256+0 records in
256+0 records out
Josephs-MacBook-Pro:zfs joe$ sudo ./cmd.sh zpool create outter `pwd`/poolonzvol.bin
Josephs-MacBook-Pro:zfs joe$ sudo ./cmd.sh zpool status
  pool: outter
 state: ONLINE
  scan: none requested
config:

	NAME                                       STATE     READ WRITE CKSUM
	outter                                     ONLINE       0     0     0
	  /Users/joe/Developer/zfs/poolonzvol.bin  ONLINE       0     0     0

errors: No known data errors
Josephs-MacBook-Pro:zfs joe$ sudo ./cmd.sh zfs create -V 64M outter/thezvol
Josephs-MacBook-Pro:zfs joe$ readlink /var/run/zfs/zvol/dsk/outter/thezvol 
/dev/disk3
Josephs-MacBook-Pro:zfs joe$ sudo ./cmd.sh zpool create inner /var/run/zfs/zvol/dsk/outter/thezvol 
Josephs-MacBook-Pro:zfs joe$ sudo gpt -r show /dev/disk3
   start    size  index  contents
       0  131072         
Josephs-MacBook-Pro:zfs joe$ sudo ./cmd.sh zpool export inner
Running process: '/usr/sbin/diskutil' 'unmount' '/inner' 
Unmount successful for /inner
Josephs-MacBook-Pro:zfs joe$ sudo ./cmd.sh zpool export outter
Running process: '/usr/sbin/diskutil' 'unmount' '/outter' 
Unmount successful for /outter
Attempting to eject volume 'outter/thezvol'
Running process: '/usr/sbin/diskutil' 'unmountDisk' '/dev/disk3' 
Unmount of all volumes on disk3 was successful
Josephs-MacBook-Pro:zfs joe$ dd if=/dev/zero of=placeholder.img bs=1m count=32
32+0 records in
32+0 records out
33554432 bytes transferred in 0.057441 secs (584154772 bytes/sec)
Josephs-MacBook-Pro:zfs joe$ hdid -nomount placeholder.img 
/dev/disk3          	                               	
Josephs-MacBook-Pro:zfs joe$ sudo ./cmd.sh zpool import -d . outter
Josephs-MacBook-Pro:zfs joe$ readlink /var/run/zfs/zvol/dsk/outter/thezvol 
/dev/disk4
Josephs-MacBook-Pro:zfs joe$ sudo ./cmd.sh zpool import
   pool: inner
     id: 398251020643748209
  state: ONLINE
 action: The pool can be imported using its name or numeric identifier.
 config:

	inner       ONLINE
	  disk4     ONLINE
Josephs-MacBook-Pro:zfs joe$ sudo ./cmd.sh zpool import -d /var/run/zfs/zvol/dsk/outter
   pool: inner
     id: 398251020643748209
  state: ONLINE
 action: The pool can be imported using its name or numeric identifier.
 config:

	inner                                   ONLINE
	  /var/run/zfs/zvol/dsk/outter/thezvol  ONLINE
Josephs-MacBook-Pro:zfs joe$ sudo ./cmd.sh zpool import -d /var/run/zfs/zvol/dsk/outter inner
Josephs-MacBook-Pro:zfs joe$ sudo ./cmd.sh zpool status
  pool: inner
 state: ONLINE
  scan: none requested
config:

	NAME                                    STATE     READ WRITE CKSUM
	inner                                   ONLINE       0     0     0
	  /var/run/zfs/zvol/dsk/outter/thezvol  ONLINE       0     0     0

errors: No known data errors

  pool: outter
 state: ONLINE
  scan: none requested
config:

	NAME                                       STATE     READ WRITE CKSUM
	outter                                     ONLINE       0     0     0
	  /Users/joe/Developer/zfs/poolonzvol.bin  ONLINE       0     0     0

errors: No known data errors
Josephs-MacBook-Pro:zfs joe$