amadmin — administrative interface to control Amanda backups
Amadmin performs various administrative tasks on the config Amanda configuration.
See the amanda(8) man page for more details about Amanda.
Commands that take a hostname [ disks ] parameter pair operate on all disks in the disklist for that hostname if no disks are specified. Where hostname is also marked as being optional, the command operates on all hosts and disks in the disklist. Both hostname and disks are special expressions, see the "HOST & DISK EXPRESSION" section of amanda(8) for a description.
Show the current version and some compile time and runtime parameters. The config parameter must be present but is ignored.
Force the disks on hostname to bump to a new incremental level during the next Amanda run.
Force the disks on hostname to not bump to a new incremental level during the next Amanda run.
Undo a previous force-bump or force-no-bump command.
Force the disks on hostname to do a full (level 0) backup during the next Amanda run.
Undo a previous force command.
The tapes listed will be available for reuse at their point in the tape cycle.
The tapes listed will not be reused when their turn comes up again in the tape cycle. Note that if this causes the number of reusable tapes to drop below the amanda.conf tapecycle value, Amanda will request new tapes until the count is satisfied again.
Show when the next full dump is due.
hkdlpb] [ hostname [ disks ]* ]*
Display all backups currently on tape or in the holding disk. The tape label or holding disk filename, file number, and status are displayed.
--sort option changes the sort order using the following flags:
h host name k disk name d dump date l backup level p dump part b tape label
An uppercase letter reverses the sort order for that key. The default sort order is hkdlpb.
Delete the specified disks on hostname from the Amanda database.
Display the tape(s) Amanda expects to write to during the next run. See also amcheck(8).
Display the current bump threshold parameters, calculated for all backup levels.
Display the distribution of full backups throughout the dump schedule.
Convert records from the Amanda database to a text format that may be transmitted to another Amanda machine and imported.
Convert exported records read from standard input to a form Amanda uses and insert them into the database on this machine.
Display the disklist information for each of the disks on hostname (or all hosts). Mostly used for debugging.
Display the database record for each of the disks on hostname (or all hosts). Mostly used for debugging.
Request three specific file systems on machine-a get a full level 0 backup during the next Amanda run.
$ amadmin daily force machine-a / /var /usr amadmin: machine-a:/ is set to a forced level 0 tonight. amadmin: machine-a:/var is set to a forced level 0 tonight. amadmin: machine-a:/usr is set to a forced level 0 tonight.
Request all file systems on machine-b get a full level 0 backup during the next Amanda run.
$ amadmin daily force machine-b amadmin: machine-b:/ is set to a forced level 0 tonight. amadmin: machine-b:/var is set to a forced level 0 tonight. amadmin: machine-b:/usr is set to a forced level 0 tonight. amadmin: machine-b:/home is set to a forced level 0 tonight.
Undo the previous
The other file systems will still get a full level 0 backup.
$ amadmin daily unforce machine-b /home amadmin: force command for machine-b:/home cleared.
Locate backup images of
tape or file
column displays either a tape label or a filename depending on whether
the image is on tape or is still in the holding disk.
If the image is on tape, the
column tells you which file on the tape has the image
(file number zero is a tape label).
This column shows zero and is not meaningful if the image
is still in the holding disk.
column tells you whether the backup was successful or had
some type of error.
$ amadmin daily find machine-c /var date host disk lv tape or file file part status 2000\-11\-09 machine\-c /var 0 000110 9 -- OK 2000\-11\-08 machine\-c /var 2 000109 2 -- OK 2000\-11\-07 machine\-c /var 2 /amanda/20001107/machine-c._var.2 0 OK 2000\-11\-06 machine\-c /var 2 000107 2 -- OK 2000\-11\-05 machine\-c /var 2 000106 3 -- OK 2000\-11\-04 machine\-c /var 2 000105 2 -- OK 2000\-11\-03 machine\-c /var 2 000104 2 -- OK 2000\-11\-02 machine\-c /var 2 000103 2 -- OK 2000\-11\-01 machine\-c /var 1 000102 5 -- OK 2000\-10\-31 machine\-c /var 1 000101 3 -- OK
Forget about the
If you do not also remove the disk from the
file, Amanda will treat it as a new disk during the next run.
$ amadmin daily delete machine-d /workspace amadmin: machine-d:/workspace deleted from database. amadmin: NOTE: you'll have to remove these from the disklist yourself.
Find the next tape Amanda will use (in this case,
$ amadmin daily tape The next Amanda run should go onto tape 123456 or a new tape.
Show how well full backups are balanced across the dump cycle. The due-date column is the day the backups are due for a full backup. #fs shows the number of filesystems doing full backups that night, and orig KB and out KB show the estimated total size of the backups before and after any compression, respectively.
The balance column shows how far off that night's backups are from the average size (shown at the bottom of the balance column). Amanda tries to keep the backups within +/- 5%, but since the amount of data on each filesystem is always changing, and Amanda will never delay backups just to rebalance the schedule, it is common for the schedule to fluctuate by larger percentages. In particular, in the case of a tape or backup failure, a bump will occur the following night, which will not be smoothed out until the next pass through the schedule.
The last line also shows an estimate of how many Amanda runs will be made between full backups for a file system. In the example, a file system will probably have a full backup done every eight times Amanda is run (e.g. every eight days).
$ amadmin daily balance due-date #fs orig KB out KB balance ------------------------------------------- 11/10 Mon 21 930389 768753 +5.1% 11/11 Tue 29 1236272 733211 +0.2% 11/12 Wed 31 1552381 735796 +0.6% 11/13 Thu 23 1368447 684552 -6.4% 11/14 Fri 32 1065603 758155 +3.6% 11/15 Sat 14 1300535 738430 +0.9% 11/16 Sun 31 1362696 740365 +1.2% 11/17 Mon 30 1427936 773397 +5.7% 11/18 Tue 11 1059191 721786 -1.3% 11/19 Wed 19 1108737 661867 -9.5% ------------------------------------------- TOTAL 241 12412187 7316312 731631 (estimated 8 runs per dumpcycle)
James da Silva,
<firstname.lastname@example.org> : Original text
Stefan G. Weichinger,
<email@example.com>, maintainer of the