NAME¶

gzviewer - Graphical interface to display ZBC and ZAC devices zone state

SYNOPSIS¶

gzviewer [options] device

DESCRIPTION¶

gzviewer is used to dynamically display the state of zones of a ZBC or ZAC 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 device argument must be the pathname to the target device block device file (e.g., /dev/sdb), or to the target device SG node file (e.g., /dev/sg3). On old kernels lacking ZBC and ZAC support, only the device SG node file will be available. The target device may also be a regular block device set to emulate zones with the zbc_set_zones utility.

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 the zone refresh interval to msec milliseconds. The default is to refresh every 500 milliseconds.

-w, --width=columns

Display zones in a matrix of columns columns.

-h, --height=rows

Display zones in a matrix of rows rows.

--display=DISPLAY

Specify the X display to DISPLAY.

AUTHOR¶

Damien Le Moal <damien.lemoal@wdc.com>

SEE ALSO¶

gzbc(8)

AVAILABILITY¶

The gzviewer utility is part of the libzbc library available from
https://github.com/westerndigitalcorporation/libzbc.