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.
-h, --help
Display help text and exit.
-V, --version
Print version 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/util-linux/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 2.38.1 2022-05-11 BLKZONE(8)
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