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
       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)

   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  re-
       set a range of zones.

       By  default,  the command will operate from the zone at device sector 0
       and reset all zones. Options may be used to  modify  this  behavior  as
       well as specify the operation to be performed on the zone, as explained
       below.

OPTIONS
       The offset and length option arguments may be followed  by  the  multi-
       plicative  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.

       -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)

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

util-linux                       February 2017                      BLKZONE(8)