ZFS is the best option for a NAS system. It makes for a super simple home NAS, and does away with a lot of config hassles. This is due to the fact that a lot of core services are built into zfs, or into the zfs stack rather. To setup any “extra” of zfs, all you need is a one line zfs command. (zfs set sharenfs=on <pool> == instant nfs share)
1) Create the Pool
We need to fetch the disk ID’s (the number after the disk number)
format &lt;/dev/null
So if we run that command I can pull out (c8d0 c8d1 c9d0 c9d1) as shown below:
root@TrayNAS:~# format &lt;/dev/null
Searching for disks...done
AVAILABLE DISK SELECTIONS:
0. c7d0 &lt;DEFAULT cyl 3904 alt 2 hd 128 sec 32&gt;
/pci@0,0/pci-ide@1f,1/ide@0/cmdk@0,0
1. c8d0 &lt;DEFAULT cyl 60797 alt 2 hd 255 sec 252&gt;
/pci@0,0/pci-ide@1f,2/ide@0/cmdk@0,0
2. c8d1 &lt;DEFAULT cyl 60798 alt 2 hd 255 sec 189&gt;
/pci@0,0/pci-ide@1f,2/ide@0/cmdk@1,0
3. c9d0 &lt;DEFAULT cyl 60798 alt 2 hd 255 sec 189&gt;
/pci@0,0/pci-ide@1f,2/ide@1/cmdk@0,0
4. c9d1 &lt;DEFAULT cyl 60798 alt 2 hd 255 sec 189&gt;
/pci@0,0/pci-ide@1f,2/ide@1/cmdk@1,0
Specify disk (enter its number):
Take the extracted disk ID’s (c8d0 c8d1 c9d0 c9d1) and apply them to the next command. Edit accordingly depending on what pool type you would like. (mirror, raidz1, raidz2)
zpool create -f ambry raidz1 c8d0 c8d1 c9d0 c9d1
I had to use -f because I have 3x 1.5TB drives, and one 2TB drive…
Now that we have the pool created, lets marvel at what we accomplished:
root@TrayNAS:~# zpool list ambry
NAME SIZE USED AVAIL CAP HEALTH ALTROOT
ambry 5.44T 137K 5.44T 0% ONLINE -
root@TrayNAS:~# zfs list ambry
NAME USED AVAIL REFER MOUNTPOINT
ambry 95.8K 4.00T 28.4K /ambry
The difference in size is just one of those little quirks (zpool == raw disks, zfs == real space)
Another check just to make sure were all good, and using raidz1 (1 parity disk)
root@TrayNAS:~# zpool status ambry
pool: ambry
state: ONLINE
scrub: none requested
config:
NAME STATE READ WRITE CKSUM
ambry ONLINE 0 0 0
raidz1 ONLINE 0 0 0
c8d0 ONLINE 0 0 0
c8d1 ONLINE 0 0 0
c9d0 ONLINE 0 0 0
c9d1 ONLINE 0 0 0
errors: No known data errors
Everything looks good, lets setup some filesystems, sharing, compression, and copy over our data…
For the rest of the write up, I’ll just output the commands I used to create my environment:
root@TrayNAS:~# zfs create ambry/Media
root@TrayNAS:~# zfs create ambry/Downloads
root@TrayNAS:~# zfs list | grep ambry
ambry 176K 4.00T 31.4K /ambry
ambry/Downloads 28.4K 4.00T 28.4K /ambry/Downloads
ambry/Media 28.4K 4.00T 28.4K /ambry/Media
root@TrayNAS:~# zfs get all ambry
NAME PROPERTY VALUE SOURCE
ambry type filesystem -
ambry creation Sat Nov 21 12:48 2009 -
ambry used 176K -
ambry available 4.00T -
ambry referenced 31.4K -
ambry compressratio 1.00x -
ambry mounted yes -
ambry quota none default
ambry reservation none default
ambry recordsize 128K default
ambry mountpoint /ambry default
ambry sharenfs off default
ambry checksum on default
ambry compression off default
ambry atime on default
ambry devices on default
ambry exec on default
ambry setuid on default
ambry readonly off default
ambry zoned off default
ambry snapdir hidden default
ambry aclmode groupmask default
ambry aclinherit restricted default
ambry canmount on default
ambry shareiscsi off default
ambry xattr on default
ambry copies 1 default
ambry version 3 -
ambry utf8only off -
ambry normalization none -
ambry casesensitivity sensitive -
ambry vscan off default
ambry nbmand off default
ambry sharesmb off default
ambry refquota none default
ambry refreservation none default
ambry primarycache all default
ambry secondarycache all default
ambry usedbysnapshots 0 -
ambry usedbydataset 31.4K -
ambry usedbychildren 144K -
ambry usedbyrefreservation 0 -
I just created two filesystems to store my data, and then listed the zfs attributes available to me. I would like to take advantage of a few attributes, namely (compression, nfs, snapshots)
root@TrayNAS:~# zfs set sharenfs=rw,anon=0 ambry #allows root access from all hosts
root@TrayNAS:/# zfs set compression=on ambry/Media
root@TrayNAS:/# zfs set compression=on ambry/Downloads
^^^ I could set compression on for the whole ambry device, but want a little more fine grained control. ^^^
mkdir -p /old_ambry/Media
mkdir /old_ambry/Downloads
mount 10.0.0.100:/ambry/Media /old_ambry/Media
mount 10.0.0.100:/ambry/Downloads /old_ambry/Downloads
--- copied all my date over ---
I set compression on before moving data since it doesn’t activate recursively. Also I could have used zfs cloning, yet I have no need for my previous snapshots, so it’s not necessary…
More to come soon, but at this point you should be able to have a fully functioning NAS, with nfs. Enjoy
