Hello, Per a recent request, this is my own little HOWTO on how to set up Amanda to backup using a hard disk instead of tape. I tried to post this to the FOM at <http://amanda.sourceforge.net/fom-serve/cache/191.html> but I received a permission denied error when I tried to create a new login. So I'm posting it here. In addition to installation, I added a section on recovering with amrecover.
Thanks especially to John R. Jackson for helping me set this up. Also, as noted recently, there's also a nice summary by Alex Muc at <http://www.mail-archive.com/[email protected]/msg07758.html>. Regards, Clinton Hogge Industrial Images Backing up to hard disk instead of tape --------------------------------------- Assumes that: Config files are in /etc/amanda Configuration named "DailySet1" Local state directory is /var/lib/amanda Amanda is configured --with-user=amanda --with-group=disk 14 day dump cycle with an unattended "rotation" of the "tapes" For the backup device I use a separate 4 gig hard drive mounted at /var2 Installation ------------ 1. Obtain the tapeio source from sourceforge: $cvs -d:pserver:[EMAIL PROTECTED]:/cvsroot/amanda login $cvs -z3 -d:pserver:[EMAIL PROTECTED]:/cvsroot/amanda checkout -r amanda-242-tapeio amanda $cd amanda $./autogen 2. Install Amanda as usual. 3. Edit the following config files (all mode 644, owner amanda, group disk): --------------------------------- /etc/amanda/DailySet1/amanda.conf --------------------------------- # These are the options that differ from examples/amanda.conf dumpcycle 14 days tapecycle 14 #runspercycle # defaults to 1 per day runtapes 1 tpchanger "chg-multi" changerfile "/etc/amanda/DailySet1/changer.conf" # Comment out tapedev and changerdev tapetype HARD-DISK labelstr "^DailySet1[0-9][0-9]*$" define tapetype HARD-DISK { comment "Hard disk instead of tape" length 4000 mbytes # Simulates end of tape on hard disk (a 4 GB disk here) } define dumptype hard-disk-dump { global comment "Back up to hard disk instead of tape - using dump" holdingdisk no index yes priority high } define dumptype hard-disk-tar { hard-disk-dump comment "Back up to hard disk instead of tape - using tar" program "GNUTAR" } ---------------------------------- /etc/amanda/DailySet1/changer.conf ---------------------------------- multieject 0 gravity 0 needeject 0 ejectdelay 0 statefile /var/lib/amanda/DailySet1/changer-status firstslot 1 lastslot 14 slot 1 file:/var2/amandadumps/tape01 slot 2 file:/var2/amandadumps/tape02 slot 3 file:/var2/amandadumps/tape03 slot 4 file:/var2/amandadumps/tape04 slot 5 file:/var2/amandadumps/tape05 slot 6 file:/var2/amandadumps/tape06 slot 7 file:/var2/amandadumps/tape07 slot 8 file:/var2/amandadumps/tape08 slot 9 file:/var2/amandadumps/tape09 slot 10 file:/var2/amandadumps/tape10 slot 11 file:/var2/amandadumps/tape11 slot 12 file:/var2/amandadumps/tape12 slot 13 file:/var2/amandadumps/tape13 slot 14 file:/var2/amandadumps/tape14 ------------------------------ /etc/amanda/DailySet1/disklist ------------------------------ # hostname diskdev dumptype # Replace "dumptype" with either "hard-disk-dump" or "hard-disk-tar" # localhost /home hard-disk-dump # localhost /etc hard-disk-tar ------------------------------ 4. Create the "tapes" on the tape server hard drive with the associated data directories: $mkdir /var2/amandadumps $mkdir /var2/amandadumps/tape01 $mkdir /var2/amandadumps/tape01/data ... $mkdir /var2/amandadumps/tape14 $mkdir /var2/amandadumps/tape14/data $chown -R amanda.disk /var2/amandadumps $chmod -R 770 /var2/amandadumps 5. Use amlabel to label the tapes: $amlabel DailySet1 DailySet101 slot 1 ... $amlabel DailySet1 DailySet114 slot 14 Recovery with amrecover ----------------------- As root on the tape server: $mkdir /tmp/restore $cd /tmp/restore $amrecover DailySet1 $setdate (Optional) $sethost foo $setdisk bar $cd dir/which/contains/filetorecover $add filetorecover $list (note which "tape" the file is on) $settape host:file:/var2/amandadumps/tapeXX In this step, replace the appropriate host and tape values. For example to extract a file from host "rustler" that's on tape 12: $settape rustler:file:/var2/amandadumps/tape12 $extract $quit The only gotcha with amrecover is that if the files you want to extract are on different tapes, you need to add only the files that are on tape01, settape for tape01, extract, add files for tape02, settape tape02, extract, etc. As a work-around, you can give amrecover a "fake" name (/tmp/whatever) with the "-d" option and then symlink that to the appropriate "tape" as it asks for it.
