Re: [zfs-discuss] Re: [security-discuss] Thoughts on ZFS Secure Delete - without using Crypto

2007-01-01 Thread David Bustos
Quoth Darren J Moffat on Thu, Dec 21, 2006 at 03:31:59PM +: > Pawel Jakub Dawidek wrote: > >I like the idea, I really do, but it will be s expensive because of > >ZFS' COW model. Not only file removal or truncation will call bleaching, > >but every single file system modification... Heh, we

[zfs-discuss] Happy NW Lucy

2007-01-01 Thread Lucy Teague
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[zfs-discuss] Re: Re: [security-discuss] Thoughts on ZFS SecureDelete - without usingCrypto

2007-01-01 Thread Anton B. Rang
Good point. Verifying that the new überblock is readable isn’t actually sufficient, since it might become unreadable in the future. You’d need to wait for several transaction groups, until the block was unreachable by the oldest remaining überblock, to be safe in this sense. On the other hand