Amul Shah on 17 Jul 2010 17:08:31 -0700


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Re: [PLUG] How do you backup your home PC's / Laptops?

  • From: "Amul Shah" <amul+plug@amulz.com>
  • To: "Philadelphia Linux User's Group Discussion List" <plug@lists.phillylinux.org>, plug@lists.phillylinux.org
  • Subject: Re: [PLUG] How do you backup your home PC's / Laptops?
  • Date: Sat, 17 Jul 2010 20:08:26 -0400
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Walt,
Giggle fseventsd.  The people at arstechnica do great reviews of most Mac OS X stuff.
http://arstechnica.com/apple/reviews/2007/10/mac-os-x-10-5.ars/7
I wonder if inotify will put Linux on par with regards to backup.

Even over GigE the initial backup takes a while.

HTH
Amul


On Sat, 17 Jul 2010 11:04 -0400, "Walt Mankowski" <waltman@pobox.com> wrote:
> On Sat, Jul 17, 2010 at 09:47:22AM -0400, Amul Shah wrote:
> > On a Mac OS X 10.5+ machines, I use TimeMachine which you can trick
> > into using an Ubuntu server as the remote backup.  Otherwise an
> > attached external FireWire (USB works but is dog slow) is the way to
> > go.  Prior to 10.5, I used CCC (aka Carbon Copy Cloner) which is the
> > equivalent of rsync that makes the backup disk bootable.
> 
> While the transfer is slow, the actual process of deciding what needs
> to be backed up is fast because OSX tracks which files have been added
> or modified.  (I assume this is a feature of HFS+, but a quick google
> didn't turn up anything.)  What this typically means is that the first
> time you run Time Machine it takes hours, but the hourly incremental
> backups that run after that generally only take a minute or two.
> 
> In contrast a backup of an ext3 partition has to recursively look
> through the entire partition each time it runs.  I use rdiff-backup to
> backup about 50 gb to an external usb drive and it takes about 40
> minutes to do an incremental backup.
> 
> Walt
> 
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