[mythtv-users] Mythbacked on ESXi 5.0
jra at baylink.com
Mon Oct 24 20:55:56 UTC 2011
----- Original Message -----
> From: "Raymond Wagner" <raymond at wagnerrp.com>
> > People running separate file storage, router/firewall applications
> > can have them all on the same hardware.
> > m0n0wall, Vyatta, pfSense, FreeNAS, openfiler, etc. will all run
> > very happily in a virtualised environment.
> But the question is _why_ would you want to? One has to seriously
> question the sanity of the person who uses virtual machines so they
> can run half a dozen border firewalls on the same machine.
C'mon, Ray. He never suggested anyone would want to do that.
> You completely misunderstand the entire purpose for virtual machines to
> exist. Modern operating systems have this wondrous technique called
> preemptive multitasking, that allows them to run multiple applications
> on the same image just fine. You don't need to employ a virtual
> machine to achieve that. You don't even need a virtual machine to provide
> isolation between applications for convenience and manageability. A
> simple chroot provides most of the benefits as a VM in that regards,
> and para-virtualization techniques such as jails, containers, and vservers
> can pick up much of the rest, like isolated memory space, dedicated
> network stack, and cpu/memory quotas.
You've clearly never dealt with apps like WebGUI, Zimbra, Openfiler,
and the like, which all *desperately* want their own entire machine,
for administrative reasons.
Certainly, if you're motivated enough, you *can* get those things all
to play well together, but *how much do you bill an hour*. I sure charge
enough that I don't want to spend it on non-revenue activities like
that for myself, when there's a much more time-effective solution.
> So where does this get you with MythTV? The home user isn't doing
> anything that is going to be bothered too much by the occasional
I tend to think that anyone sufficiently inclined to use Myth at all
is a more... motivated viewer than average.
> The home user isn't going to have hot spare systems to fail over to in
> the event of a hardware failure (and the free ESXi doesn't allow such
> anyway). With all its runtime information stored in the database,
> MythTV is already fairly close to the "elegant solution". Change the
> IP address of the master backend, and with a few keystrokes, a slave
> backend gets promoted to master and you can start back up.
This much is true.
> There is a time and place to run VM software, but like Govindarajan, I
> don't see a home user running MythTV to be one of them. If you find it
> fun and amusing, or even just good practice for a career, have at it.
Which is a suitable reason, certainly. As is "I have all this knowledge
anyway, and I might as well use it here.
> I just don't see how it can make management and operation an easier
Economy of scale is one other reason you didn't mention...
Jay R. Ashworth Baylink jra at baylink.com
Designer The Things I Think RFC 2100
Ashworth & Associates http://baylink.pitas.com 2000 Land Rover DII
St Petersburg FL USA http://photo.imageinc.us +1 727 647 1274
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