Mailinglist Archive: opensuse-security (465 mails)

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Re: [suse-security] Dot Snapshot
  • From: Michael Salmon <Michael.Salmon@xxxxxxxxxxxxxxx>
  • Date: Thu, 06 Dec 2001 08:54:16 +0100
  • Message-id: <0.1007625256@uabs78c65>
On Wednesday, December 05, 2001 05:49:31 AM -0900 John Andersen <jsa@xxxxxxxxxxxxxx> wrote:
| Have a user contemplating replacing his Netware server with
| Suse 7.3. One thing he really likes about netware is the "Salvage"
| ability which will recover deleted files up until the owner/deleter
| issues the purge command or the server runs out of least reciently
| used disk space.
| (He's well aware of the security aspects of this, they don't have
| secret data, just expensive to recreate data).
| Is there some package on Suse that provides the equivelent of
| the .snapshot directory on netapp boxes?
| Any other way to achieve similar capabilities?

The netapp snapshots are a part of wafl and are only practical on that file system. Basically each block can be a member of up to 32 file trees, data on tap (dot) reserves 2 of them, the current state and the last stable file system, the other 30 are available for creating backups which can then be accessed vi the .snapshot pseudo directory. Without this capability you need to copy blocks, this is what others (e.g. Veritas) do in their snapshots.

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