blkzone

BLKZONE(8)                   System Administration                  BLKZONE(8)

NAME
       blkzone - run zone command on a device

SYNOPSIS
       blkzone command [options] device

DESCRIPTION
       blkzone is used to run zone command on device that support the Zoned
       Block Commands (ZBC) or Zoned-device ATA Commands (ZAC). The zones to
       operate on can be specified using the offset, count and length options.

       The device argument is the pathname of the block device.

COMMANDS
   report
       The command blkzone report is used to report device zone information.

       By default, the command will report all zones from the start of the
       block device. Options may be used to modify this behavior, changing the
       starting zone or the size of the report, as explained below.

       Report output:

       +--------+----------------------------+
       |        |                            |
       |start   | Zone start sector          |
       +--------+----------------------------+
       |        |                            |
       |len     | Zone length in number of   |
       |        | sectors                    |
       +--------+----------------------------+
       |        |                            |
       |cap     | Zone capacity in number of |
       |        | sectors                    |
       +--------+----------------------------+
       |        |                            |
       |wptr    | Zone write pointer         |
       |        | position                   |
       +--------+----------------------------+
       |        |                            |
       |reset   | Reset write pointer        |
       |        | recommended                |
       +--------+----------------------------+
       |        |                            |
       |non-seq | Non-sequential write       |
       |        | resources active           |
       +--------+----------------------------+
       |        |                            |
       |cond    | Zone condition             |
       +--------+----------------------------+
       |        |                            |
       |type    | Zone type                  |
       +--------+----------------------------+

       Zone conditions:

       +---+--------------------------+
       |   |                          |
       |cl | Closed                   |
       +---+--------------------------+
       |   |                          |
       |nw | Not write pointer        |
       +---+--------------------------+
       |   |                          |
       |em | Empty                    |
       +---+--------------------------+
       |   |                          |
       |fu | Full                     |
       +---+--------------------------+
       |   |                          |
       |oe | Explicitly opened        |
       +---+--------------------------+
       |   |                          |
       |oi | Implicitly opened        |
       +---+--------------------------+
       |   |                          |
       |ol | Offline                  |
       +---+--------------------------+
       |   |                          |
       |ro | Read only                |
       +---+--------------------------+
       |   |                          |
       |x? | Reserved conditions      |
       |   | (should not be reported) |
       +---+--------------------------+

   capacity
       The command blkzone capacity is used to report device capacity
       information.

       By default, the command will report the sum, in number of sectors, of
       all zone capacities on the device. Options may be used to modify this
       behavior, changing the starting zone or the size of the report, as
       explained below.

   reset
       The command blkzone reset is used to reset one or more zones. Unlike
       sg_reset_wp(8), this command operates from the block layer and can
       reset a range of zones.

   open
       The command blkzone open is used to explicitly open one or more zones.
       Unlike sg_zone(8), open action, this command operates from the block
       layer and can open a range of zones.

   close
       The command blkzone close is used to close one or more zones. Unlike
       sg_zone(8), close action, this command operates from the block layer
       and can close a range of zones.

   finish
       The command blkzone finish is used to finish (transition to full
       condition) one or more zones. Unlike sg_zone(8), finish action, this
       command operates from the block layer and can finish a range of zones.

       By default, the reset, open, close and finish commands will operate
       from the zone at device sector 0 and operate on all zones. Options may
       be used to modify this behavior as explained below.

OPTIONS
       The offset and length option arguments may be followed by the
       multiplicative suffixes KiB (=1024), MiB (=1024*1024), and so on for
       GiB, TiB, PiB, EiB, ZiB and YiB (the "iB" is optional, e.g., "K" has
       the same meaning as "KiB") or the suffixes KB (=1000), MB (=1000*1000),
       and so on for GB, TB, PB, EB, ZB and YB. Additionally, the 0x prefix
       can be used to specify offset and length in hex.

       -o, --offset sector
           The starting zone specified as a sector offset. The provided offset
           in sector units (512 bytes) should match the start of a zone. The
           default value is zero.

       -l, --length sectors
           The maximum number of sectors the command should operate on. The
           default value is the number of sectors remaining after offset. This
           option cannot be used together with the option --count.

       -c, --count count
           The maximum number of zones the command should operate on. The
           default value is the number of zones starting from offset. This
           option cannot be used together with the option --length.

       -f, --force
           Enforce commands to change zone status on block devices used by the
           system.

       -v, --verbose
           Display the number of zones returned in the report or the range of
           sectors reset.

       -V, --version
           Display version information and exit.

       -h, --help
           Display help text and exit.

AUTHORS
       Shaun Tancheff <shaun@tancheff.com>, Karel Zak <kzak@redhat.com>

SEE ALSO
       sg_rep_zones(8)

REPORTING BUGS
       For bug reports, use the issue tracker at
       https://github.com/karelzak/util-linux/issues.

AVAILABILITY
       The blkzone command is part of the util-linux package which can be
       downloaded from Linux Kernel Archive
       <https://www.kernel.org/pub/linux/utils/util-linux/>.

util-linux 2.37.2                 2021-06-02                        BLKZONE(8)