zfs variables

zfs get
missing property argument
usage:
        get [-rHp] [-d max] [-o "all" | field[,...]] [-s source[,...]]
            <"all" | property[,...]> [filesystem|volume|snapshot] ...

The following properties are supported:

        PROPERTY       EDIT  INHERIT   VALUES

        available        NO       NO   <size>
        compressratio    NO       NO   <1.00x or higher if compressed>
        creation         NO       NO   <date>
        defer_destroy    NO       NO   yes | no
        mounted          NO       NO   yes | no
        origin           NO       NO   <snapshot>
        refcompressratio  NO       NO   <1.00x or higher if compressed>
        referenced       NO       NO   <size>
        type             NO       NO   filesystem | volume | snapshot
        used             NO       NO   <size>
        usedbychildren   NO       NO   <size>
        usedbydataset    NO       NO   <size>
        usedbyrefreservation  NO       NO   <size>
        usedbysnapshots  NO       NO   <size>
        userrefs         NO       NO   <count>
        aclinherit      YES      YES   discard | noallow | restricted | passthrough | passthrough-x
        aclmode         YES      YES   discard | groupmask | passthrough
        atime           YES      YES   on | off
        canmount        YES       NO   on | off | noauto
        casesensitivity  NO      YES   sensitive | insensitive | mixed
        checksum        YES      YES   on | off | fletcher2 | fletcher4 | sha256
        compression     YES      YES   on | off | lzjb | gzip | gzip-[1-9] | zle
        copies          YES      YES   1 | 2 | 3
        dedup           YES      YES   on | off | verify | sha256[,verify]
        devices         YES      YES   on | off
        exec            YES      YES   on | off
        logbias         YES      YES   latency | throughput
        mlslabel        YES      YES   <sensitivity label>
        mountpoint      YES      YES   <path> | legacy | none
        nbmand          YES      YES   on | off
        normalization    NO      YES   none | formC | formD | formKC | formKD
        primarycache    YES      YES   all | none | metadata
        quota           YES       NO   <size> | none
        readonly        YES      YES   on | off
        recordsize      YES      YES   512 to 128k, power of 2
        refquota        YES       NO   <size> | none
        refreservation  YES       NO   <size> | none
        reservation     YES       NO   <size> | none
        secondarycache  YES      YES   all | none | metadata
        setuid          YES      YES   on | off
        sharenfs        YES      YES   on | off | share(1M) options
        sharesmb        YES      YES   on | off | sharemgr(1M) options
        snapdir         YES      YES   hidden | visible
        sync            YES      YES   standard | always | disabled
        utf8only         NO      YES   on | off
        version         YES       NO   1 | 2 | 3 | 4 | current
        volblocksize     NO      YES   512 to 128k, power of 2
        volsize         YES       NO   <size>
        vscan           YES      YES   on | off
        xattr           YES      YES   on | off
        zoned           YES      YES   on | off
        userused@...     NO       NO   <size>
        groupused@...    NO       NO   <size>
        userquota@...   YES       NO   <size> | none
        groupquota@...  YES       NO   <size> | none

Sizes are specified in bytes with standard units such as K, M, G, etc.

User-defined properties can be specified by using a name containing a colon (:).

The {user|group}{used|quota}@ properties must be appended with
a user or group specifier of one of these forms:
    POSIX name      (eg: "matt")
    POSIX id        (eg: "126829")
    SMB name@domain (eg: "matt@sun")
    SMB SID         (eg: "S-1-234-567-89")