The backup addhost command creates a Tape Coordinator entry in the
Backup Database. The entry records
The host name of the Tape Coordinator machine where the Tape Coordinator
(butc) process runs, as specified with the -tapehost argument.
The Tape Coordinator's port offset number, as specified with the
-portoffset argument. An entry for the port offset must also appear in
the /var/lib/openafs/backup/tapeconfig file on the Tape Coordinator machine,
where it is mapped to a UNIX device name (for a tape device) or pathname
(for a backup data file).
Each Tape Coordinator must have its own port offset number, and the
command fails if a Backup Database entry already exists for the requested
port offset number. To display existing Tape Coordinator entries, use the
backup listhosts command.
-tapehost <tape machine name>
Specifies the fully-qualified hostname of the machine for which to create
a Tape Coordinator entry in the Backup Database. The machine must have an
entry in either the cell's naming service (such as the Domain Name
Service) or the host file (/etc/hosts or equivalent) on the machine
where the command is issued.
-portoffset <TC port offset>
Specifies the Tape Coordinator's port offset number. Provide an integer
from the range 0 through 58510, or omit this argument to use the
default value of 0 (zero). The value must match the port offset number
recorded for the same combination of Tape Coordinator and tape device or
file in the /var/lib/openafs/backup/tapeconfig file on the Tape Coordinator
machine named by the -tapehost argument.
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).
-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).
Prints the online help for this command. All other valid options are
The following command creates an entry in the Backup Database that assigns
port offset number 4 to a Tape Coordinator running on the machine
The following command creates a Backup Database entry that assigns port
offset number 0 to a Tape Coordinator on the machine "backup3.abc.com":
% backup addhost backup3.abc.com
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
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