Hwarf Nugen

HOWTO: ZFS RAID-Z Up and Running on NexentaCP

Posted on the June 29th, 2007 under HOWTOs,Sys Admin,Technology / Computing by jglemza

1. Install NexentaCP. (You can use any Solaris flavor you’d like though. I chose Nexenta for it’s apt-get repository.)
2. Run the ‘format’ command to determine which drives you’re going to add to the pool.
   root@ufuk:~# format
   Searching for disks...done
   
   
   AVAILABLE DISK SELECTIONS:
          0. c0d0 <default cyl 4862 alt 2 hd 255 sec 63>
             /pci@0,0/pci-ide@1f,1/ide@0/cmdk@0,0
          1. c1d0 <st350064-         3PM0FS6-0001-465.76GB>
             /pci@0,0/pci-ide@1f,1/ide@1/cmdk@0,0
          2. c1d1 <default cyl 24790 alt 2 hd 255 sec 63>
             /pci@0,0/pci-ide@1f,1/ide@1/cmdk@1,0
          3. c2d0 <maxtor S-         5QG01BG-0001-465.76GB>
             /pci@0,0/pci8086,244e@1e/pci-ide@3/ide@0/cmdk@0,0
          4. c4d0 <maxtor S-         5QG01BM-0001-465.76GB>
             /pci@0,0/pci8086,244e@1e/pci-ide@3/ide@1/cmdk@0,0
          5. c5d0 <st350063-         9QG0QH4-0001-465.76GB>
             /pci@0,0/pci8086,244e@1e/pci-ide@4/ide@0/cmdk@0,0
   Specify disk (enter its number):
   Do a Ctrl-C at ‘Specify disk’ to not actually use the ‘format’ command on a drive. The disks that I want to install on are c1d0, c2d0, and c4d0. This will give me ~1TB of storage.
3. Create the pool by running, replace ‘shet’ with your name:
   root@ufuk:~# zpool create shet raidz c1d0 c2d0 c4d0
   Be sure to not include partitions/slices if you want to use the whole drive as part of the pool, write-caching will be disabled. Replace ‘raidz’ with ‘mirror’ if you prefer to mirror your drives.
4. The pool is instantly mounted to ‘/shet’. You can check this by running:
   root@ufuk:~# zfs list
   NAME                     USED  AVAIL  REFER  MOUNTPOINT
   shet                     212G   703G   212G  /shet
   syspool                 2.73G  33.0G    24K  none
   syspool/rootfs          2.73G  33.0G  2.56G  legacy
   syspool/rootfs@default   178M      -   648M  -
   You can check the status of a pool by running:
   root@ufuk:~# zpool status
     pool: shet
    state: ONLINE
    scrub: none requested
   config:
   
           NAME        STATE     READ WRITE CKSUM
           shet        ONLINE       0     0     0
             raidz1    ONLINE       0     0     0
               c1d0    ONLINE       0     0     0
               c2d0    ONLINE       0     0     0
               c4d0    ONLINE       0     0     0
   
   errors: No known data errors
   
     pool: syspool
    state: ONLINE
    scrub: none requested
   config:
   
           NAME        STATE     READ WRITE CKSUM
           syspool     ONLINE       0     0     0
             c0d0s0    ONLINE       0     0     0
   
   errors: No known data errors