The vulnerability is in how quickly you reuse media, and I was simply observing that just cycling between media gives you a very short window to realise you lost data, and to then restore it from backup.
has no one been listening or my statements about rdiff-backup or does everyone think I'm full of crap?
From the website: ----
What is it?
rdiff-backup backs up one directory to another, possibly over a network. The target directory ends up a copy of the source directory, but extra reverse diffs are stored in a special subdirectory of that target directory, so you can still recover files lost some time ago. The idea is to combine the best features of a mirror and an incremental backup. rdiff-backup also preserves subdirectories, hard links, dev files, permissions, uid/gid ownership, and modification times. Also, rdiff-backup can operate in a bandwidth efficient manner over a pipe, like rsync. Thus you can use rdiff-backup and ssh to securely back a hard drive up to a remote location, and only the differences will be transmitted. Finally, rdiff-backup is easy to use and settings have sensical defaults.
----
it looks to me like rdiff-backup solves many day to day disaster recovery backup problems. Its not designed for archiving, but for disaster recovery I can't find a better open source product.
I don't have any real affliation with the product aside from being a happy user and hosting the wiki for the creator. The author is a PhD in logic from Stanford so its a pretty well thought out product.
oh well,
dave -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
