I''ve got a system with a 1-partition (74G) root pool and an
8-whole-disk
(500Gx8) raidz2 pool called tank.  I reinstalled the OS recently, after
zfs export''ing tank, and did a zpool import -af.  The following is what
I ended up with.  I''m totally at a loss to explain these
"Xc..." pools;
there isn''t enough storage in the machine to account for them!  Can
anyone clear this mystery up for me?
Thanks!
# zpool list
NAME        SIZE   USED  AVAIL    CAP  HEALTH  ALTROOT
Xc8t1d0p0   464G  89.5K   464G     0%  ONLINE  -
Xc9t0d0p0   464G  89.5K   464G     0%  ONLINE  -
Xc9t1d0p0   464G  74.5K   464G     0%  ONLINE  -
rpool        74G  7.43G  66.6G    10%  ONLINE  -
tank       3.62T  91.3G  3.54T     2%  ONLINE  -
root at hoss:~# zpool status
  pool: Xc8t1d0p0
 state: ONLINE
 scrub: none requested
config:
        NAME        STATE     READ WRITE CKSUM
        Xc8t1d0p0   ONLINE       0     0     0
          c8t1d0p0  ONLINE       0     0     0
errors: No known data errors
  pool: Xc9t0d0p0
 state: ONLINE
 scrub: none requested
config:
        NAME        STATE     READ WRITE CKSUM
        Xc9t0d0p0   ONLINE       0     0     0
          c9t0d0p0  ONLINE       0     0     0
errors: No known data errors
  pool: Xc9t1d0p0
 state: ONLINE
 scrub: none requested
config:
        NAME        STATE     READ WRITE CKSUM
        Xc9t1d0p0   ONLINE       0     0     0
          c9t1d0p0  ONLINE       0     0     0
errors: No known data errors
  pool: rpool
 state: ONLINE
 scrub: none requested
config:
        NAME        STATE     READ WRITE CKSUM
        rpool       ONLINE       0     0     0
          c7d0s0    ONLINE       0     0     0
errors: No known data errors
  pool: tank
 state: ONLINE
 scrub: none requested
config:
        NAME         STATE     READ WRITE CKSUM
        tank         ONLINE       0     0     0
          raidz2     ONLINE       0     0     0
            c8t0d0   ONLINE       0     0     0
            c8t1d0   ONLINE       0     0     0
            c9t0d0   ONLINE       0     0     0
            c9t1d0   ONLINE       0     0     0
            c10t0d0  ONLINE       0     0     0
            c10t1d0  ONLINE       0     0     0
            c10t2d0  ONLINE       0     0     0
            c10t3d0  ONLINE       0     0     0
-- 
Dave Abrahams
BoostPro Computing
http://www.boostpro.com