-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Дана понедељак 19 новембар 2007, G T Smith је написао(ла):
Philippe Landau wrote:
What can a simple user use to backup his installation ?
This is an old topic, but well worth reviewing.
This topic is not so old, IMHO :)
1) Dar in some ways the most limited of the options, to effectively be used with removable media some scripting is required. It can be considered as basically Tar with most of the more sophisticated options removed. It is not particularly fast in operation. KDar the gui frontend when I last looked at it made only limited use of the limited number of Dar options available. This is the simplest option. It also has some minor limitations on what it will store.
It is designed to be used with removable and fixed media (but not really tapes), and I am not entirely convinced about how usable it would be if one only wanted to recover a single file.
It works quite well if you want to recover only one (or several) files. Although I don't really know if doing that would be too easy using CLI, but KDar GUI can browse through dar archives and you can recover any file you want. Good thing is that you can also make so called isolations which are small and can be kept on the disk. You can think of the isolation as the table of contents for the archive. You just open the most recent isolation, find your file and drag it to the place you want to put it. Afterwards KDar will tell you to put the right CD/DVD into the drive and copy the file. Quite usable.
2) Tar is the old staple (with star as its posix compliant cousin). It has an intimidating number of options, but it is reliable and very powerful. It is worth reading the info documentation (the man page is more likely to confuse someone who has not dealt with tar before). While originally designed for tape backups it is much more than that now.
The worst problem with tar is it not supporting incremental backups. With 500GB disks I think that incremental backup is crucial for home users (it does introduce bigger probability of loosing backup, but it also uses less DVDs which are cheap, but take a lot of space @ home and a lot of time when you have to burn them once a month or so).
3) Rsync is the most powerful option, however I not completely convinced 4) Bacula is a tape orientated backup solution, as is Taper (
Rsync, tapes and RAIDs are mostly for servers. If I had another drive, I would fill it with data, not with backup :) And most home users don't have tapes, as far as I know.
As data backup and archive solutions 1) and 2) do have a major limitation in that information on the backup is limited to each backup. Tracking of different versions of file over time has to be done independently of the backup application.
Nope, as I said dar supports incremental backups and therefore file versioning
from backup to backup.
Happy hacking
Filip
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Filip Brcic