HOWTO Restore Files From Amanda: Difference between revisions
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This process will output the files and directories in the current folder. You can aboard the process at anytime when your file has been recovered (CTRL-C). | This process will output the files and directories in the current folder. You can aboard the process at anytime when your file has been recovered (CTRL-C). | ||
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If you need multiple tapes, simply rewind (below), eject (below), insert the next tape, and repeat the above '''amrestore''' command. | |||
== Finish Up == | == Finish Up == | ||
Revision as of 05:22, 5 May 2007
How to restore files from an Amanda tape backup.
SSH to musashi for recovering files from a machine, and SSH to yamato to recover files from users or projects.
Finding Where the Files you want to Restore are Located
hostname / # su - amanda amanda@hostname ~ $ amadmin $backupname find $hostname/$ipaddress $directorypath
Worked Example: amanda@hostname ~ $ amadmin DailyMusashi find 209.87.56.16 /etc
You should see something like this:
2006-04-07 209.87.56.16 /etc/ 0 DailyMusashi20 24 OK 2006-04-10 209.87.56.16 /etc/ 1 DailyMusashi21 16 OK 2006-04-11 209.87.56.16 /etc/ 1 DailyMusashi22 19 OK 2006-04-12 209.87.56.16 /etc/ 1 DailyMusashi23 23 OK 2006-04-13 209.87.56.16 /etc/ 1 DailyMusashi24 29 OK 2006-04-18 209.87.56.16 /etc/ 1 DailyMusashi25 23 OK
Another example:
amanda@trainwreck ~ $ amadmin Daily find inferno /srv/www Scanning /holding... Scanning /holding... date host disk lv tape or file file status 2007-04-23 inferno /srv/www 0 Daily05 8 OK 2007-04-24 inferno /srv/www 1 Daily06 4 OK 2007-04-25 inferno /srv/www 1 Daily07 2 OK 2007-04-26 inferno /srv/www 1 Daily08 2 OK 2007-04-27 inferno /srv/www 1 Daily09 2 OK 2007-04-30 inferno /srv/www 0 Daily10 10 OK 2007-05-01 inferno /srv/www 1 Daily01 6 OK 2007-05-02 inferno /srv/www 1 Daily02 2 OK 2007-05-03 inferno /srv/www 1 Daily03 2 OK 2007-05-04 inferno /srv/www 1 Daily04 2 OK
Restoring Files
Looking at the file-listing, you are interested in the most-recent level0 backup (to begin with), and the most-recent level1. None of the others (ie xxx ) are of any interest at all. We will only use DailyMusashi20, and DailyMusashi25 in the first example; Daily10 and Daily04 in the second example.
Now that you know what tape the files are on, insert the first tape into the drive and ask for the files. Note: The files will be extracted into the current directory.
NOTE: Make sure you have enough drive-space for the extraction to succeed! df -h
amanda@hostname ~ $ mkdir restore; cd restore amanda@hostname ~ $ amrestore -p /dev/nst0 209.87.56.16 /etc | tar xvf -
This process will output the files and directories in the current folder. You can aboard the process at anytime when your file has been recovered (CTRL-C).
If you need multiple tapes, simply rewind (below), eject (below), insert the next tape, and repeat the above amrestore command.
Finish Up
Rewind a tape; as root:
hostname / # mt -f /dev/st0 rewind (/dev/nst0 is the non-rewinding device, although it may rewind anyway) hostname / # mt -f /dev/nst0 eject