On Thu, 2005-01-06 at 09:55 -0700, Lars Rasmussen wrote: > I second the rsync approach. No need to use compression that way.
I also use rsync. Ed Schaller once showed me a way to use rysnc (to another hard disk) to create hard links which make incremental backups where each day's backup would appear to be a complete, coherent image (ie full backup) while actually taking up only space for new or changed files. Perhaps he'd be willing to share this with the list again. From what I can tell, you can even fake hard links on DVDs and CDROMs, so you could have what appears to be several copies of multi-gigabyte folders on one 4.5 gb disk. Just some food for thought here. RAID is not a backup. RSYNCing and TARing is good only for disaster recovery. An incremental system is the only way to get a true backup where you can go back through time and recover files that you overwrote or changed a few days ago. That's where a good backup because a truly valuable tool. I am looking into a way of writing DVDs of file changesets to disk every day. that way if you start with your full backup (near-line), you should be able to go back through the DVDs and find any version of the file over a whole year, for example. Anyway, just some ramblings. Michael > > Josh's approach will save space and money, though. > > Another question is: Do you want an additive backup or do you want to > delete files from the backup drive that no longer exist on your source > drive? > > Buy a new drive for $66 and use your current drive for the backups: > > Western Digital Special Edition 80GB 7200RPM IDE Hard Drive, Model > WD800JB, OEM Drive Only > http://www.newegg.com/app/ViewProductDesc.asp?description=22-144-122&depa=1 > > 60GB drives are a bit scarce on NewEgg right now. -- -------------------- BYU Unix Users Group http://uug.byu.edu/ The opinions expressed in this message are the responsibility of their author. They are not endorsed by BYU, the BYU CS Department or BYU-UUG. ___________________________________________________________________ List Info: http://uug.byu.edu/cgi-bin/mailman/listinfo/uug-list
