---
name: "backup_delhost"
section: "8"
platform: "linux"
package: "openafs-client"
version: "1.8.13.2-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/backup_delhost"
---

# backup\_delhost(8)

Deletes a Tape Coordinator entry from the Backup Database

## NAME

backup\_delhost - Deletes a Tape Coordinator entry from the Backup Database

## SYNOPSIS

**backup delhost** **-tapehost** \<*tape machine name*\>\
     \[**-portoffset** \<*TC port offset*\>\] \[**-localauth**\]\
     \[**-cell** \<*cell name*\>\] \[**-help**\]

**backup delh** **-t** \<*tape machine name*\>\
     \[**-p** \<*TC port offset*\>\]\
     \[**-l**\] \[**-c** \<*cell name*\>\] \[**-h**\]

## DESCRIPTION

The **backup delhost** command deletes the indicated Tape Coordinator entry from the Backup Database. It is then impossible to submit backup operations to that Tape Coordinator, even if it is still running. To keep configuration information consistent, also remove the corresponding entry from the */var/lib/openafs/backup/tapeconfig* file on the Tape Coordinator machine.

To list the Tape Coordinator machines and port offsets defined in the Backup Database, issue the **backup listhosts** command.

## OPTIONS

- **-tapehost** \<*tape machine name*\>

  Specifies the hostname of the machine housing the Tape Coordinator to delete.

- **-portoffset** \<*TC port offset*\>

  Specifies the port offset number of the Tape Coordinator to delete.  If omitted, it defaults to `0`. If provided, it is an integer between `0` (zero) and `58510`, and must match the port offset number assigned to the same combination of Tape Coordinator and tape device or file in the */var/lib/openafs/backup/tapeconfig* file on the Tape Coordinator machine indicated by the **-tapehost** argument.

- **-localauth**

  Constructs a server ticket using a key from the local */etc/openafs/server/KeyFile* file. The **backup** command interpreter presents it to the Backup Server, Volume Server and VL Server during mutual authentication. Do not combine this flag with the **-cell** argument. For more details, see [**backup**(8)](/backup/8.md).

- **-cell** \<*cell name*\>

  Names the cell in which to run the command. Do not combine this argument with the **-localauth** flag. For more details, see [**backup**(8)](/backup/8.md).

- **-help**

  Prints the online help for this command. All other valid options are ignored.

## EXAMPLES

The following command deletes the Backup Database entry for the Tape Coordinator with port offset 2 on the Tape Coordinator machine `"backup3.example.com"`:

```
   % backup delhost -tapehost backup3.example.com -portoffset 2
```

## PRIVILEGE REQUIRED

The issuer must be listed in the */etc/openafs/server/UserList* file on every machine where the Backup Server is running, or must be logged onto a server machine as the local superuser `"root"` if the **-localauth** flag is included.

## SEE ALSO

[**backup**(8)](/backup/8.md), [**backup\_addhost**(8)](/backup_addhost/8.md), [**backup\_listhosts**(8)](/backup_listhosts/8.md)

## COPYRIGHT

IBM Corporation 2000. \<http://www.ibm.com/\> All Rights Reserved.

This documentation is covered by the IBM Public License Version 1.0.  It was converted from HTML to POD by software written by Chas Williams and Russ Allbery, based on work by Alf Wachsmann and Elizabeth Cassell.