On Tue, Dec 19, 2006 at 02:04:37PM +0000, Darren J Moffat wrote: > In case it wasn't clear I am NOT proposing a UI like this: > > $ zfs bleach ~/Documents/company-finance.odp > > Instead ~/Documents or ~ would be a ZFS file system with a policy set > something like this: > > # zfs set erase=file:zero > > Or maybe more like this: > > # zfs create -o erase=file -o erasemethod=zero homepool/darrenm > > The goal is the same as the goal for things like compression in ZFS, no > application change it is "free" for the applications.
I like the idea, I really do, but it will be soooo expensive because of ZFS' COW model. Not only file removal or truncation will call bleaching, but every single file system modification... Heh, well, if privacy of your data is important enough, you probably don't care too much about performance. I for one would prefer encryption, which may turns out to be much faster than bleaching and also more secure. -- Pawel Jakub Dawidek http://www.wheel.pl [EMAIL PROTECTED] http://www.FreeBSD.org FreeBSD committer Am I Evil? Yes, I Am!
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