Comments on: Backup Basics and Different types of backup http://www.debianadmin.com/backup-basics-and-different-types-of-backup.html Debian/Ubuntu Linux System Administration Tutorials,Howtos,Tips Thu, 19 Nov 2009 13:24:32 -0500 http://wordpress.org/?v=2.8.6 hourly 1 By: AJ http://www.debianadmin.com/backup-basics-and-different-types-of-backup.html/comment-page-1#comment-2373 AJ Mon, 09 Feb 2009 01:37:16 +0000 http://www.debianadmin.com/backup-basics-and-different-types-of-backup.html#comment-2373 how much storage space will I need for a typical full backup? how much storage space will I need for a typical full backup?

]]> By: Pepito http://www.debianadmin.com/backup-basics-and-different-types-of-backup.html/comment-page-1#comment-928 Pepito Fri, 20 Apr 2007 05:22:25 +0000 http://www.debianadmin.com/backup-basics-and-different-types-of-backup.html#comment-928 "s. Check that you can restore the backup so that all these are preserved." That is the only thing I know and why I expected to read. The same applies to almost everything in the article. “s. Check that you can restore the backup so that all these are preserved.”

That is the only thing I know and why I expected to read. The same applies to almost everything in the article.

]]> By: Larry http://www.debianadmin.com/backup-basics-and-different-types-of-backup.html/comment-page-1#comment-927 Larry Wed, 28 Mar 2007 01:08:23 +0000 http://www.debianadmin.com/backup-basics-and-different-types-of-backup.html#comment-927 (* I think those long options in Chris' note above need double-hyphens *) Some other commands available in Linux that may be of interest -- partimage rdiff-backup copydir (in pkg "mirrordir") I still think that dump/restore (through a process pipe) is quite useful for migrating (populating) a new/local filesystem. Larry (* I think those long options in Chris’ note above need double-hyphens *)

Some other commands available in Linux that may be of interest –
partimage
rdiff-backup
copydir (in pkg “mirrordir”)

I still think that dump/restore (through a process pipe) is quite useful
for migrating (populating) a new/local filesystem. Larry

]]> By: Chris http://www.debianadmin.com/backup-basics-and-different-types-of-backup.html/comment-page-1#comment-926 Chris Fri, 23 Mar 2007 16:09:10 +0000 http://www.debianadmin.com/backup-basics-and-different-types-of-backup.html#comment-926 You can have the ease of restore of a full backup, with the speed and space efficiency of an incremental backup using rsync and hard links. Lets say we are backing up everything from / to /backup/ This gives you a full backup in /backup/1: rsync --archive --delete --links --progress --stats --verbose --exclude /backup/ / /backup/1 Then if you run: cp -al /backup/1 /backup/2 You'll get a hardlinked copy of the full backup. If you then run: rsync --archive --delete --links --progress --stats --verbose --exclude /backup/ / /backup/2 Rsync will perform an incremental backup into 2, and only replace updated files. Thus, in /backup/1 you have the original backup, in /backup/2 you have the updated backup, and common files arn't duplicated, so it's nice and space efficient. To restore, simply copy the most recent backup folder. Of course, you might want more meaningful folders than /backup/1 and /backup/2. I use the date as the folder name myself. You can have the ease of restore of a full backup, with the speed and space efficiency of an incremental backup using rsync and hard links.

Lets say we are backing up everything from / to /backup/

This gives you a full backup in /backup/1: rsync –archive –delete –links –progress –stats –verbose –exclude /backup/ / /backup/1

Then if you run: cp -al /backup/1 /backup/2
You’ll get a hardlinked copy of the full backup.

If you then run:
rsync –archive –delete –links –progress –stats –verbose –exclude /backup/ / /backup/2
Rsync will perform an incremental backup into 2, and only replace updated files. Thus, in /backup/1 you have the original backup, in /backup/2 you have the updated backup, and common files arn’t duplicated, so it’s nice and space efficient.

To restore, simply copy the most recent backup folder.

Of course, you might want more meaningful folders than /backup/1 and /backup/2. I use the date as the folder name myself.

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