Jeremy, The intended use of both are vastly different.
A snapshot is a point-in-time image of a file system that as you have pointed out, may have missed several versions of changes regardless of frequency. Versioning (ala VAX -- ok, I feel old now) keeps versions of every changes up to a specified limit. It cannot be used to construct a point-in-time image so is pretty useless in a restore situation. For most cases where it matters, version control systems should be used. They may be a little less wieldy than automatic FS versioning but affords better control (with features like branching/merging/concurrent access). So, back to the advantage of versioning FS vs frequent ZFS snapshot, there is no other advantages than you have stated. Versioning FS gives you exactly that 1 feature. ZFS snapshots may approximate this behaviour but it will not be as efficient or convenient. -- Just me, Wire ... On 10/6/06, Jeremy Teo <[EMAIL PROTECTED]> wrote:
What would versioning of files in ZFS buy us over a "zfs snapshots + cron" solution? I can think of one: 1. The usefulness of the ability to get the prior version of anything at all (as richlowe puts it) Any others? -- Regards, Jeremy _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
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