Re: [orca-list] Backup Strategies

[Steve Holmes <steve holmes88 gmail com>]

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I thought about rsync and thanks again for reminding me about unison.
I use unison to keep a thumb drive in sync with one of my machines at
work which is a windows box.  The thing I like about traditional
backups like tar is the ability to keep files archived around that
perhaps I accidentally delete.  Sync type backups like rsync keeps the
current and backup in sync so the accidentally deleted file would also
have disappeared from the backup after the sync run completes.  I
wouldn't mind using tar with it's ability to do full and incrimental
backups but the extract speed kills me.  That's why I was interested
in other possibilities.

On Wed, Oct 29, 2008 at 05:55:40PM +0000, Jon wrote:
> Hi,
>
> I have recently been playing with diffrent data resilience stratigies 
> (thanks to a disk failure), and i decided to settle with using ZFS 
> (Thanks Sun)
>
> http://en.wikipedia.org/wiki/Zfs
>
> It allows for raidz, a form or striped raid, which ensures that if one 
> particular disk dies, the information stored on remaining disks are able 
> to calculate the missing data.
>
> Not all of the disks have to be online at any given time, when disks 
> come online they will automatically synchronize in the background to 
> make sure they all are up to date.
> ZFS also allows for snap shotting (or elementary backup), a way of 
> version controling your file system without taking any further disk 
> space.
>
> standard external disks can be used, as well as over a network.
>
> yes, ZFS works under linux, a fuse port, and the project is not dead, 
> the person does work on it from time to time, although he does not 
> update the blog or the website.
>
> Please Sun, make ZFS public under the GPL.
>
> Obviously more clasical backup tools such as rsync (recommended) is 
> worth playing with, and unison.
>
> If after a while you get tempted to use ZFS and you need a hand, then 
> I'm happy to explain how i got things set up.
>
> Do remember though, ZFS volumes are not accessable by windows, unless 
> they are running across a network share.
>
> Hope this gives some ideas.
>
> -Jon
> On Wed 29/10/2008 at 10:19:49, Steve Holmes wrote:
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> > I'm curious as to what people are using out there to backup their
> > systems.  In the unix world, tar seems to be king but I've got to tell
> > you, there doesn't seem to be anything slower either.  I have a 20 GB
> > tar backup I recently took and it takes over an hour just to find and
> > extract a single file.  There's got to be something better than that.
> > I'm talking about 2 or 3 different computers at home and I don't need
> > tape drives or elaborate off premise storage.  Is there something
> > better or faster I can use?  I've thought about zip but I thought that
> > had some draw-backs.  Is cpio any faster?
> >
> > I'm open for ideas.  Thanks.
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