[b]Set up for test:[/b]
(I picked v8 for no particular reason this linux install can speak zfs v3
and zpool v13, as can our solaris b101 installs, but some of the older solaris
boxes we have can't I guess... so... I picked 8? I want to use this my little
500gb external ZFS disk. But first some testing!)
sdd is an external USB drive.
from dmesg:
usb-storage: device found at 11
usb-storage: waiting for device to settle before scanning
usb-storage: device scan complete
scsi 7:0:0:0: Direct-Access WDC WD50 00AAKB-00UKA0 PQ: 0 ANSI: 0
sd 7:0:0:0: [sdd] 976773168 512-byte hardware sectors (500108 MB)
sd 7:0:0:0: [sdd] Write Protect is off
sd 7:0:0:0: [sdd] Mode Sense: 33 00 00 00
sd 7:0:0:0: [sdd] Assuming drive cache: write through
sd 7:0:0:0: [sdd] 976773168 512-byte hardware sectors (500108 MB)
sd 7:0:0:0: [sdd] Write Protect is off
sd 7:0:0:0: [sdd] Mode Sense: 33 00 00 00
sd 7:0:0:0: [sdd] Assuming drive cache: write through
sdd: sdd1
sd 7:0:0:0: [sdd] Attached SCSI disk
sd 7:0:0:0: Attached scsi generic sg4 type 0
ganymede:~# uname -a
Linux ganymede 2.6.27.4-51.fc10.x86_64 #1 SMP Sun Oct 26 20:40:00 EDT 2008
x86_64 x86_64 x86_64 GNU/Linux
ganymede:~# zpool create -f external -o version=8 sdd
ganymede:~# zpool status
pool: external
state: ONLINE
status: The pool is formatted using an older on-disk format. The pool can
still be used, but some features are unavailable.
action: Upgrade the pool using 'zpool upgrade'. Once this is done, the
pool will no longer be accessible on older software versions.
scrub: none requested
config:
NAMESTATE READ WRITE CKSUM
externalONLINE 0 0 0
sdd ONLINE 0 0 0
errors: No known data errors
ganymede:~# zfs set compression=gzip-9 external
ganymede:~# cd /external/
ganymede:/external#
ganymede:/external# ls -al
total 6
drwxr-xr-x 2 root root2 2008-10-31 12:20 .
drwxr-xr-x 26 root root 4096 2008-10-31 12:20 ..
ganymede:/external# touch testfile
ganymede:/external# ln -s testfile a_symlink
ganymede:/external# ln -s /to/some/random/location/to/see/what/happens
another_symlink
ganymede:/external# ls -al
total 7
drwxr-xr-x 2 root root5 2008-10-31 12:25 .
drwxr-xr-x 26 root root 4096 2008-10-31 12:20 ..
lrwxrwxrwx 1 root root 44 2008-10-31 12:25 another_symlink -
/to/some/random/location/to/see/what/happens
lrwxrwxrwx 1 root root8 2008-10-31 12:24 a_symlink - testfile
-rw-rw-rw- 1 root root0 2008-10-31 12:24 testfile
ganymede:/external# zfs snapshot [EMAIL PROTECTED]
ganymede:/external# zfs list
NAMEUSED AVAIL REFER MOUNTPOINT
external 64K 457G19K /external
[EMAIL PROTECTED] 0 -19K -
ganymede:/external# zpool status
pool: external
state: ONLINE
status: The pool is formatted using an older on-disk format. The pool can
still be used, but some features are unavailable.
action: Upgrade the pool using 'zpool upgrade'. Once this is done, the
pool will no longer be accessible on older software versions.
scrub: none requested
config:
NAMESTATE READ WRITE CKSUM
externalONLINE 0 0 0
sdd ONLINE 0 0 0
errors: No known data errors
ganymede:/external#
ganymede:/external# cd /
ganymede:/# zpool export external
ganymede:/#
[b]Now we boot the b99 livecd import and look at it:[/b] (this is the same
machine as the linux box, ie. ganymede)
[EMAIL PROTECTED]:~$ pfexec zpool import
pool: external
id: 6611776765231431925
state: ONLINE
status: The pool is formatted using an older on-disk version.
action: The pool can be imported using its name or numeric identifier, though
some features will not be available without an explicit 'zpool upgrade'.
config:
externalONLINE
c3t0d0p0 ONLINE
[EMAIL PROTECTED]:~$ pfexec zpool import external
[EMAIL PROTECTED]:~$ ls -al /external/
total 4
drwxr-xr-x 2 root root 5 2008-10-30 18:55 .
drwxr-xr-x 24 root root 512 2008-10-30 19:22 ..
lrwxrwxrwx 1 root root 44 2008-10-30 18:55 another_symlink -
/to/some/random/location/to/see/what/happens
lrwxrwxrwx 1 root root 8 2008-10-30 18:54 a_symlink - testfile
-rw-rw-rw- 1 root root 0 2008-10-30 18:54 testfile
[EMAIL PROTECTED]:~$ pfexec zpool scrub external
[EMAIL PROTECTED]:~$ pfexec zpool status
pool: external
state: ONLINE
status: The pool is formatted using an older on-disk format. The pool can
still be used, but some features are unavailable.
action: Upgrade the pool using 'zpool upgrade'. Once this is done, the
pool will no longer be accessible on older software versions.
scrub: scrub completed after 0h0m with 0 errors on Thu Oct 30 19:23:37 2008
config:
NAMESTATE READ WRITE CKSUM
externalONLINE 0 0 0
c3t0d0p0 ONLINE 0 0 0
errors: No known data errors
[EMAIL PROTECTED]:~$
