collaborative backup system?

[gusl]

Does there exist some kind of collaborative backup system?

Your HD could be partnered with a few other Internetted computers (or to be more efficient, use a checksum system like RAID) to make backups of each other (or just the most important directories). There could be a daily update of the changes made.

I think most people would want some sort of encryption, so that users of the remote computers else can't read their data.

Comments

[dusc.livejournal.com]

In preference to noise, you could create a virtual RAID across multiple systems. Forward Error Correction could be used to create multiple system redundancy. Compression and a 1 KB segment size would prevent any single machine from "accidentally" being in posession of porn, or other illegal content in a recoverable format.

This would seem to address the desired specs.

You'd need some simple propogation and caching methods for commands, like "Add" and "Delete", but the virtual raid could be self adjusting, allowing for the addition and removal of servers. I'd have to actually think about it to spec out a "good" approach for these.


For most things, I'd just email anything I want backed up offsite to a 1 GB free email account. Plenty of free splitters are out there for data > 10MB. Clumsy, but how often have most of us really used backup recovery for anything but source code?

[dusc.livejournal.com]

This suggestion is not intended to be an endosement of child porn, or any other illegal or even immoral materials which could potentially obstruct any future attempts to obtain a secret clearance.