---
name: "sg_reset_wp"
section: "8"
platform: "linux"
package: "sg3_utils"
version: "1.49-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/sg_reset_wp"
---

# sg\_reset\_wp(8)

send SCSI RESET WRITE POINTER command

## NAME

sg\_reset\_wp - send SCSI RESET WRITE POINTER command

## SYNOPSIS

**sg\_reset\_wp** \[*--all*\] \[*--count=ZC*\] \[*--help*\] \[*--verbose*\] \[*--version*\] \[*--zone=ID*\] *DEVICE*

## DESCRIPTION

Sends a SCSI RESET WRITE POINTER command to the *DEVICE*. This command is described in ZBC standard (INCITS 536-2016) and the draft ZBC-2 documents at T10 (e.g. zbc2r12.pdf).

## OPTIONS

Arguments to long options are mandatory for short options as well.

- **-a**, **--all**

  sets the ALL field in the cdb. This causes a reset write pointer operation of all open zones and full zones. When this option is given then the *--zone=ID* option is ignored. Either this option or the *--zone=ID* option is required.

- **-C**, **--count**=*ZC*

  ZC is placed in the Zone Count field in the cdb of the RESET WRITE POINTER command supported by this utility. ZC should be a value from 0 to 65535 (0xffff) inclusive.\
   The action that the *DEVICE* takes with this option depends on whether the *--all* option is set. See the RESET WRITE POINTER command description (e.g. section 5.9, table 46 in zbc2r12.pdf).

- **-h**, **--help**

  output the usage message then exit.

- **-v**, **--verbose**

  increase the level of verbosity, (i.e. debug output).

- **-V**, **--version**

  print the version string and then exit.

- **-z**, **--zone**=*ID*

  where *ID* is placed in the cdb's ZONE ID field. A zone id is a zone start logical block address (LBA). This causes a reset write pointer operation on the zone identified by the ZONE ID field. The default value is 0. Either this option or the *--all* option is required. *ID* is assumed to be in decimal unless prefixed with '0x' or has a trailing 'h' which indicate hexadecimal.

## NOTES

The Zones Emptied log parameter in the Zoned Block Device Statistics log page counts the number of times the RESET WRITE POINTER command has been (successfully) invoked.

## EXIT STATUS

The exit status of sg\_reset\_wp is 0 when it is successful. Otherwise see the [sg3\_utils(8)](/sg3_utils/8.md) man page.

## AUTHORS

Written by Douglas Gilbert.

## REPORTING BUGS

Report bugs to \<dgilbert at interlog dot com\>.

## COPYRIGHT

Copyright © 2014-2022 Douglas Gilbert\
 This software is distributed under a BSD-2-Clause license. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

## SEE ALSO

**sg\_rep\_zones,sg\_zone(sg3\_utils)**