From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: Date: Sun, 27 Mar 2005 12:13:02 -0500 From: Russ Cox To: Fans of the OS Plan 9 from Bell Labs <9fans@cse.psu.edu> Subject: Re: [9fans] Couple of Venti questions In-Reply-To: <20050327152052.GC22577@smp500.sitetronics.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit References: <20050327152052.GC22577@smp500.sitetronics.com> Topicbox-Message-UUID: 2d53df26-ead0-11e9-9d60-3106f5b1d025 > Well, actually, there's only one question. I'm wondering if it's > possible to, instead of configuring Venti to take snapshots of > entire filesystems at a given interval, configure Venti to take > a snapshot of a single file and only when you tell it to > yourself. No, there isn't. Full file system snapshots are not that expensive. Let yourself go. If you're worried about particular huge churn, you could chmod +t (or maybe +T, I forget) certain things to exclude them from the periodic snapshots. For example chmod +t $home/tmp, or if you're super aggressive, chmod +t /386/bin /386/lib. You'll find that once you've had daily snapshots of everything around for a while you'll never want to go back to having to explicitly ask for something to be snapshotted. But see also vac(1). Russ