The device argument is the pathname of the block device.
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.
|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|
|nw||Not write pointer|
|x?||Reserved conditions (should not be reported)|
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.
- -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.
Shaun Tancheff <email@example.com> Karel Zak <firstname.lastname@example.org>