Basic ZFS commands

Submitted by tschinke on Sat, 04/04/2009 - 03:00

Solaris
ZFS

Some widely used ZFS commands, as described on Heise:

Creating, or work you just do once

Identifying your disks using format and exit with Strg+c

~$ sudo format
Password: 
Searching for disks...done
 
AVAILABLE DISK SELECTIONS:
       0. c3d0 <DEFAULT cyl 19454 alt 2 hd 255 sec 63>
          /pci@0,0/pci-ide@14,1/ide@0/cmdk@0,0
       1. c4t0d0 <ATA-WDC WD10EADS-00L-1A01-931.51GB>
          /pci@0,0/pci1458,b005@12/disk@0,0
       2. c4t1d0 <ATA-WDC WD10EADS-00L-1A01-931.51GB>
          /pci@0,0/pci1458,b005@12/disk@1,0
       3. c4t2d0 <ATA-WDC WD10EADS-00L-1A01-931.51GB>
          /pci@0,0/pci1458,b005@12/disk@2,0
       4. c4t3d0 <ATA-WDC WD10EADS-00L-1A01-931.51GB>
          /pci@0,0/pci1458,b005@12/disk@3,0
Specify disk (enter its number): ^C

Creating a ZFS pool

sudo zpool create dataRaid raidz1 c4t0d0 c4t1d0 c4d2d0 c4d3d0

Create a ZFS filesystem in a pool

sudo zfs create dataRaid/home

Take a view

View the pool status

~$ zpool status
  pool: dataRaid
 state: ONLINE
 scrub: none requested
config:
 
        NAME        STATE     READ WRITE CKSUM
         dataRaid    ONLINE       0     0     0
           raidz1    ONLINE       0     0     0
             c4t0d0  ONLINE       0     0     0
             c4t1d0  ONLINE       0     0     0
             c4t2d0  ONLINE       0     0     0
             c4t3d0  ONLINE       0     0     0
 
errors: No known data errors
 
  pool: rpool
 state: ONLINE
 scrub: none requested
config:
 
        NAME        STATE     READ WRITE CKSUM
        rpool       ONLINE       0     0     0
          c3d0s0    ONLINE       0     0     0
 
errors: No known data errors

Show shared folders:

~$ sharemgr show -vp
default nfs=()
zfs
    zfs/dataRaid/backup smb=()
          dataRaid_backup=/dataRaid/backup
    zfs/dataRaid/home smb=()
          dataRaid_home=/dataRaid/home
    zfs/dataRaid/organisation smb=()
          dataRaid_organisation=/dataRaid/organisation
    zfs/rpool/tmp smb=()
          rpool_tmp=/rpool/tmp

Refactoring your organisation

Renaming a whole pool

zpool export mypool
zpool import mypool myNewPoolName

Renaming only a zfs filesystem. Obviously this can't be done efficiently, so all data will be first copied to the new filesystem. That's more or less useful.

~$ zfs rename dataRaid/organisation dataRaid/common

Deleting a filesystem

~$ zfs destroy dataRaid/organisation

Sharing your data

Sharing a ZFS filesystem with sun-smb server (don't forget to configure your pam.conf for common authentication). You can also use the flag sharenfs=on.

sudo zfs set sharesmb=on dataRaid/home

Basic ZFS commands

Creating, or work you just do once

Take a view

Refactoring your organisation

Sharing your data

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