amdump − back up all disks in an Amanda configuration

amdump [−−no−taper] [−−no−dump] [−−no−flush] [−−no−vault]
[−−exact−match] [−o configoption...] config
[host [disk...]...]

     Amdump is the main interface to the Amanda backup
process. It loads the specified configuration and attempts
to back up every disk specified by the disklist(5).  Amdump
is normally run by cron.

     The command optionally takes a set of DLE
specifications (see amanda‐match(7)) to narrow the DLEs that
will be dumped. All disks are dumped if no expressions are

     If a file named hold exists in the configuration
directory, amdump will wait until it is removed before
starting the backups. This allows scheduled backups to be
delayed when circumstances warrant, for example, if the tape
device is being used for some other purpose. While waiting,
amdump checks for the hold file every minute.

     In some cases it is desirable to dump all Amanda
clients to holding disk without writing anything to storage
media. The −−no−taper option instructs Amanda to not start
the taper, and thus enter degraded mode immediately.

     See the amanda(8) man page for more details about

     Disable writting to tape, including flush and vault.

     Disable dump operations.

     Disable flush, like setting autoflush to NO for all

     Dump done in this run will be flushed.

     Disable all vault.

     The host and disk are parsed as exact values.


     −o configoption
     See the "CONFIGURATION OVERRIDE" section in amanda(8).

     host [disk]*
     Specify the host and disk on which the command will
     work −− see the description of DLE specifications in

     Here is a typical crontab entry. It runs amdump every
weeknight at 1 a.m. as user bin:
0 1 * * 1−5 bin /usr/local/sbin/amdump daily

     Please see the crontab(5) or crontab(1) manual page for
the correct crontab format for your system.

     amdump: waiting for hold file to be removed
     The "hold" file exists and amdump is waiting for it to
     be removed before starting backups.

     amdump: amdump or amflush is already running, or you
must run amcleanup
     Amdump detected another amdump or amflush running, or
     the remains of a previous incomplete amdump or amflush
     run. This run is terminated. If the problem is caused
     by the remains of a previous run, you must execute
     amcleanup(8) and then rerun amdump.

The exit code of amdump is the ORed value of:
 0  = success
 1  = error
 2  = a dle give strange message
 4  = a dle failed
 8  = Don't know the status of a dle (RESULT_MISSING in the report)
 16 = tape error or no more tape

     amanda(8), amcheck(8), amcleanup(8), amrestore(8),
amflush(8), cron(8), amanda‐match(7)

     The Amanda Wiki: :

     James da Silva <>

     Stefan G. Weichinger <>