AMFETCHDUMP(8) | System Administration Commands | AMFETCHDUMP(8) |
NAME¶
amfetchdump - extract backup images from multiple Amanda tapes.SYNOPSIS¶
amfetchdump [-c | -C | -l] [-p | -n] [-a]
[-O directory] [-d device] [-h |
--header-file filename | --header-fd fd]
[--decompress | --no-decompress | --server-decompress | --client-decompress]
[--extract --directory
directory [--data-path amanda |
directtcp] [--application-property NAME=VALUE]*]
[--decrypt | --no-decrypt | --server-decrypt | --client-decrypt]
[--exact_match] [ -o configoption...] config
hostname [
disk [ date [ level [
hostname [...] ] ] ]]
DESCRIPTION¶
Amfetchdump pulls one or more matching dumps from tape or from the holding disk, handling the reassembly of multi-tape split dump files as well as any tape autochanger operations. The dump are by default decompressed and decrypted. It will automatically use the Amanda catalog to locate available dumps on tape, in the same way that the find feature of amadmin(8) lists available dumps. The hostname, diskname, datestamp, and level dump specifications are further described in amanda-match(7). Note that at minimum a hostname must be specified. Unless -p is used, backup images are extracted to files in the current directory named: If a changer error occurs, or the -d option is given, then amfetchdump prompts for each required volume. hostname.diskname.datestamp.dumplevelOPTIONS¶
-pPipe exactly one complete dump file to stdout,
instead of writing the file to disk. This will restore only the first matching
dumpfile (where "first" is determined by the dump log search
facility).
-h
Output the amanda header as a 32K block to same output as
the image.
--header-fd fd
Output the amanda header to the numbered file
descriptor.
--header-file filename
Output the amanda header to the filename.
-d device_or_changer
Restore from this device or changer instead of the
default, prompting for each volume.
-O directory
Output restored files to this directory, instead of to
the current working directory.
-c
Compress output, fastest method available.
-C
Compress output, smallest file size method
available.
--decompress
Always do the decompression, this is the default.
--no-decompress
Never do the decompression.
--server-decompress
Do the decompression only if the compression was done on
the server.
--client-decompress
Do the decompression only if the compression was done on
the client.
--decrypt
Always do the decryption, this is the default.
--no-decrypt
Never do the decryption.
--server-decrypt
Do the decryption only if the encryption was done on the
server.
--client-decrypt
Do the decryption only if the encryption was done on the
client.
--exact-match
The host and disk are parsed as exact values
--extract
Extract the backup on the server in the directory
directory.
--directory directory
Where to extract the backup with the --extract
option.
Warning: All files in that directory can be removed.
--data-path amanda|directtcp
The data path to use with --extract, the default
is to use the fatest data path.
--application-property NAME=VALUE
Application property to send to the application with
--extract.
-l
Leave dumps in the compressed/uncompressed and
encrypted/unencrypted state in which they were found on tape. It is a synonym
for --no-decompression --no-decryption
-a
Assume that all tapes are already available, via tape
changer or otherwise, instead of prompting the operator to ensure that all
tapes are loaded.
-n
Do not reassemble split dump files at all, just restore
each piece as an individual file.
-o configoption
See the "CONFIGURATION OVERRIDE" section
in amanda(8).
EXAMPLES¶
All the examples here assume your configuration is called SetA. Here's a simple case, restoring all known dumps of the host vanya to the current working directory.$ amfetchdump SetA vanyaA more likely scenario involves restoring a particular dump from a particular date. We'll pipe this one to GNU-tar as well, to automatically extract the dump.
$ amfetchdump -p SetA vanya /home 20051020 | gtar -xvpf -
CAVEATS¶
Amfetchdump is dependent on accessing your server's config, tape changer, and (normally) dump logs. As such, it's not necessarily the most useful tool when those have all been wiped out and you desperately need to pull things from your tape. Pains have been taken to make it as capable as possible, but for seriously minimialist restores, look to amrestore(8) or dd(8) instead.SEE ALSO¶
amanda(8), amanda-match(7), amadmin(8), amrestore(8) The Amanda Wiki: : http://wiki.zmanda.com/AUTHORS¶
John Stange <building@nap.edu>National Academies Press
Ian Turner <ian@zmanda.com>
Zmanda, Inc. (http://www.zmanda.com)
07/11/2014 | Amanda 3.3.6 |