ZFS Pools
creating a new zpool
zpool create [-fnd] [-o property=value] ...
[-O file-system-property=value] ... [-m mountpoint] [-R root]
[-t tempname] pool vdev ...Example:
create a mirror (RAID 1) storage called “mypool” from two disks(/dev/ada1 /dev/ada2)
zpool create mypool mirror /dev/ada1 /dev/ada2
Result:
rootn-bsd01:~:% zpool status
pool: mypool
state: ONLINE
scan: none requested
config:
NAME STATE READ WRITE CKSUM
mypool ONLINE 0 0 0
mirror-0 ONLINE 0 0 0
ada1 ONLINE 0 0 0
ada2 ONLINE 0 0 0
errors: No known data errors
pool: zroot
state: ONLINE
scan: none requested
config:
NAME STATE READ WRITE CKSUM
zroot ONLINE 0 0 0
ada0p3 ONLINE 0 0 0
errors: No known data errors% zpool list
NAME SIZE ALLOC FREE CKPOINT EXPANDSZ FRAG CAP DEDUP HEALTH ALTROOT
mypool 31.5G 316K 31.5G - - 0% 0% 1.00x ONLINE -
zroot 61.5G 2.32G 59.2G - - 2% 3% 1.00x ONLINE -ZFS Datasets
Creating a new dataset
zfs create [-pu] [-o property=value]... filesystem
zfs create [-ps] [-b blocksize] [-o property=value]... -V size volumeExample:
Create a dataset upload under mypool
% zfs create mypool/upload
Result:
% zfs list
NAME USED AVAIL REFER MOUNTPOINT
mypool 488K 30.5G 88K /home/ftp
mypool/upload 88K 30.5G 88K /home/ftp/uploadMounting
zfs set property=value [property=value]... filesystem|volume|snapshot...Example:
Mount mypool on /home/ftp
% zfs set mountpoint=/home/ftp mypool
Result:
% zfs list
NAME USED AVAIL REFER MOUNTPOINT
mypool 488K 30.5G 88K /mypool
...Setting other properties
zfs set property=value [property=value]... filesystem|volume|snapshot...Example:
Setting mypool compression to lz4
zfs set compress=lz4 mypool
Result:
% zfs get all mypool
NAME PROPERTY VALUE SOURCE
mypool type filesystem -
...
mypool compression lz4 local
...