ZFS On Linux - Notes to Self / (aka forget mdadm, this is easier!)

Set up repositories:

deb http://ppa.launchpad.net/dajhorn/zfs/ubuntu natty main
deb-src http://ppa.launchpad.net/dajhorn/zfs/ubuntu natty main
apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 1EE8660B

Fix "Samba sharing is not supported.":

apt-get install nfs-kernel-server

Create pool:

# zpool create chasm raidz /dev/sda /dev/sdb /dev/sdc /dev/sdd
# zpool list

NAME    SIZE  ALLOC   FREE    CAP  DEDUP  HEALTH  ALTROOT
chasm  1.81T   303K  1.81T     0%  1.00x  ONLINE  -

Create filesystem and set options:

# zfs create chasm/data
# zfs set atime=off chasm
# zfs set mountpoint=/srv/pub chasm/data
# zfs list

NAME         USED  AVAIL  REFER  MOUNTPOINT
chasm        215K  1.33T  41.9K  /chasm
chasm/data  67.3K  1.33T  67.3K  /srv/pub

Set up share with no real security but a decent slice of space:

# vi /etc/samba/smb.conf

[media]
path = /srv/pub/media
comment = Various media.
valid users = greyproc smbadmin uninvited
write list = greyproc smbadmin
read list = uninvited
available = yes
browseable = yes
writable = no
guest ok = no
printable = no
locking = no
strict locking = no

And verify:

$ smbclient -L localhost -U greyproc

Enter greyproc's password:
Domain=[Khazadum] OS=[Unix] Server=[Samba 3.5.8]

        Sharename       Type      Comment
        ---------       ----      -------
        ...
        media           Disk      Various media.
        ...
        IPC$            IPC       IPC Service (Here Be Dragons (Frostfall 3.5.8))

Reference:

https://launchpad.net/~dajhorn/+archive/zfs
http://groups.google.com/group/kqstor-zfs-discuss/browse_thread/thread/c4cd225c45530964?tvc=2
http://zfsonlinux.org/