Opensolaris ZFS RaidZ setup

As you no doubt know, raidz is one of the supremely cool parts of OpenSolaris. Unfortunately when I was setting it up I could not find any really clear instructions on how to configure it. Below are the steps I ended up using to get it working.

First, you need to know what disks are available to you for the raid, you can find them with:

format

This will give an output that looks like this:

Searching for disks...done


AVAILABLE DISK SELECTIONS:<br/>
       0. c7t0d0 <Adaptec-3805-V1.0-698.54GB><br/>
          /pci@0,0/pci8086,2845@1c,3/pci8086,370@0/pci9005,2bc@e/disk@0,0<br/>
       1. c7t1d0 <Adaptec-3805-V1.0-1.36TB><br/>
          /pci@0,0/pci8086,2845@1c,3/pci8086,370@0/pci9005,2bc@e/disk@1,0<br/>
       2. c9d0 <WDC WD20-  WD-WCAVY085017-0001-1.82TB><br/>
          /pci@0,0/pci-ide@1f,2/ide@0/cmdk@0,0<br/>

To escape that, just press ctrl+c

Now we can create the RAIDZ with that information:

zpool create -f backup raidz1 c7t1d0 c9d0 c7t0d0

Working through that, this is what the switches mean:

-f: Force, in this case I dont care about errors, just make the pool. If you are unsure about overwriting a disk, just omit this switch
backup:This is the name of the storage pool I want to make
raidz1: I want to create a raidz level 1 (what the levels mean are outlined at the bottom of this)
c7t1d0 c9d0 c7t0d0:Selecting the disks that I want to use

Now we can view the result of the above command with:

zpool status

You should now see your new raidz pool "backup" in the list.

NAME     SIZE   USED  AVAIL    CAP  HEALTH  ALTROOT<br/>
backup  3.41T   223K  3.41T     0%  ONLINE  -<br/>
rpool   1.81T  4.22G  1.81T     0%  ONLINE  -<br/>

If you want to know how the individual members are doing you can run:

zpool status<br/>
 pool: backup<br/>
 state: ONLINE<br/>
 scrub: none requested<br/>
config:<br/>
<br/>
        NAME        STATE     READ WRITE CKSUM<br/>
        backup      ONLINE       0     0     0<br/>
          raidz1    ONLINE       0     0     0<br/>
            c7t1d0  ONLINE       0     0     0<br/>
            c9d0    ONLINE       0     0     0<br/>
            c7t0d0  ONLINE       0     0     0<br/>

That looks like all of our disks are now online, now if you want, you can try adding some options to your new pool.

Add ISCSI

zfs create -V 100G backup/lun1<br/>
pfexec pkg install pkg:/SUNWiscsitgt<br/>
zfs set shareiscsi=on backup/lun1<br/>
iscsitadm list target<br/>

Change lun1 size (Expand volume)

zfs set volsize=200G backup/lun1

Samba (CIFS) share

zfs set sharesmb=on backup/lun1

Links

Here are some great links that helped me