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Jun 9, 2008, 11:06 AM
Post #1 of 1
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[OT] was Re: Maildir filesystem advice
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Robin Bowes <robin-lists[at]robinbowes.com> wrote:
> Charles Cazabon wrote:
> >
> > I have heard many people say good things about ZFS, but my one experience
> > with it was with a file server that was converted from Linux+ext3 to
> > OpenSolaris+ZFS -- and the Solaris file server was molasses-slow. After
> > the sysadmin spent a couple of weeks trying to tune it up to the speed of
> > the previous (unoptimized) Linux configuration, I converted it back.
>
> Hmm, interesting. I've had nothing but good experiences with ZFS. What sort
> of box was it running in? It really needs 64-bit, and *lots* of RAM, i.e.
> minimum of 2GB, preferably lots more.
Note this is getting offtopic, and I don't particularly care why the
performance we saw sucked, as I wasn't the one administering the box. If I
thought it was an inherent property of ZFS, I wouldn't have phrased my report
the way I did.
For those curious, hardware wasn't a problem. The filesystem in question was
sitting on top of four disks (with nothing else on them), and the server had 2
dual-core Opterons (running 64-bit mode) and 8GB of memory.
As I said, I gave the sysadmin two weeks to try getting the performance up to
scratch before reverting the box to Linux+ext3, which solved our performance
problems. Maybe the sysadmin could or should have done more, but I can't
argue that point, and it doesn't belong on this list in any case.
Charles
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