gzbd-viewer8
Zoned block devices zone state graphical interface
Usage
gzbd-viewer [options]
device
Overview
gzbd-viewer is used to dynamically display the state of zones of a zoned block device. Each zone is displayed as a box representing the sector range of the zone. A zone box is filled with different colors based on the zone type and on the use of sectors within the zone. The condition of zones is indicated by highlighting a zone box border with different colors.
Zone type and usage color codes
| Magenta | Conventional zones |
| Red | Written sectors of a sequential zone |
| Green | Unwritten and usable sectors of a sequential zone |
| Rosy brown | Unusable sectors of a sequential zone |
Zone condition color codes
| Light blue | Explicitly opened zones |
| Dark blue | Implicitly opened zones |
| Dark orange | Closed zones |
| Grey | Offline zones |
The device argument must be the pathname of the target zoned block device.
By default, gzbd-viewer will display at most 100 zones using a 10 x 10 grid. This default display size can be changed using options as explained below.
Options
-
-?, --help -
Show help options and exit.
-
--help-all -
Show all help options and exit.
-
--help-gtk -
Show GTK+ options and exit.
-
-v, --verbose -
Use libzbd verbose mode (for debug).
-
-i, --interval msec -
Set refresh interval to msec milliseconds (default: 500).
-
-w, --width columns -
Display zones in a matrix of columns columns.
-
-h, --height rows -
Display zones in a matrix of rows rows.
-
-b, --block size -
Use size as the unit for displaying a zone position, length and write pointer position instead of the default byte value.
-
--display=DISPLAY -
Specify the X display to use.