Subject: Re: Which snapshot strategy to use? was: How to capture all file system writes (fwd)
To: NetBSD Kernel Technical Discussion <tech-kern@netbsd.org>
From: Juergen Hannken-Illjes <hannken@eis.cs.tu-bs.de>
List: tech-kern
Date: 10/24/2003 00:03:51
On Thu, Oct 23, 2003 at 04:02:35PM -0400, gabriel rosenkoetter wrote:
>  ...
>
> Not directly related:
> 
> Do we have any intention of having checkpoints ala VxFS 5? (I find
> those especially useful in production Oracle environments under
> Solaris with Veritas VM managing the disk.)
> 
> Are we on our way to a full-on virtualized disk manager? (If so,
> keen. But that'll be a massive amount of code...)
> 
> Is Kirk already doing (some of) this in FFS2? (I don't exactly pay
> attention to FreeBSD.)
> 
> -- 
> gabriel rosenkoetter
> gr@eclipsed.net

FreeBSD's snapshot for FFS gives 20 persisten snapshots but to my
knowledge it is not possible to "go back" to one of these snapshots.
You may only read or unlink them.

-- 
Juergen Hannken-Illjes - hannken@eis.cs.tu-bs.de - TU Braunschweig (Germany)