Amanda-Users

Re: Rackable IDE-RAID1 Harddisk Backup System

2003-11-13 08:40:27
Subject: Re: Rackable IDE-RAID1 Harddisk Backup System
From: "R.M. Evers" <amanda AT hbh-it DOT nl>
To: Paul Bijnens <paul.bijnens AT xplanation DOT com>
Date: Thu, 13 Nov 2003 14:36:41 +0100
thank you paul, this seems fairly straightforward. too bad debian/stable
contains amanda-server 2.4.2p2 though.. it's been a long time since i
actually had to compile something ;-)

now to find a suitable server, and off we go..

thanks again,
-rodi.


On Thu, 2003-11-13 at 14:04, Paul Bijnens wrote:
> R.M. Evers wrote:
> 
> > - is amanda easy to configure to dump to harddisk instead of tapes?
> 
> Yes, using a recent version (2.4.3 at least) with the "file" driver.
> See in the manpage under section "OUTPUT DRIVERS".
> 
> You could also leave the files in a large holdingdisk, as Zoltan
> suggested, but then there is no easy way to remove old dumps in some
> automated way, and keeping the indexes etc synchronised with what is
> available to restore.  (At least I don't know any.)
> 
> With the file driver, together with a chg-multi changer, you can
> emulate all your tapes online.
> 
> In amanda.conf add/change these lines:
> =========
> runtapes 1
> tpchanger "chg-multi"   # the tape-changer glue script
> #tapedev "/dev/rmt/0n" # the no-rewind tape device to be used
> #tapedev "file:/space/amanda-bkup/test"
> changerfile "/var/opt/amanda/etc/test/chg-multi.conf"
> 
> amrecover_check_label yes
> amrecover_changer "chg-multi"
> ========
> 
> In the "chg-multi.conf" file:
> ========
> multieject 0
> gravity 0
> needeject 0
> ejectdelay 0
> statefile /var/opt/amanda/archive/changer-status
> firstslot 1
> lastslot 4
> slot 1 file:/space/amanda-bkup/test/Test-01
> slot 2 file:/space/amanda-bkup/test/Test-02
> slot 3 file:/space/amanda-bkup/test/Test-03
> slot 4 file:/space/amanda-bkup/test/Test-04
> =========
> 
> Each "slot" in the config file is a directory, which contains
> a "data" subdirectory.  You have to create these manually.
> You can have as many slots (directories) as you like.
> The maximum size of each backup run is still limited by
> what is specified in the tapetype.  You can make up a tapetype
> with a suitable capacity.
> You still have to "amlabel" each virtual tape, but buying more
> tapes is as simple as creating a new directory, with subdir "data"
> and adding a new slot in your "chg-multi" configuration.
> All the tapes are constatntly online; no need to "insert the
> correct tape" etc.
> 
> The filesystem where your backups are stored need to be
> able to contain large files (> 4 GByte), unless you can limit
> all your backup images to some safe upper bound. (Any recent
> Linux will do fine.)
> 
> You still need a holdingdisk, otherwise amanda cannot run multiple dumps
> in parallel.