--On November 3, 2006 12:04:33 PM -0500 7v5w7go9ub0o
<7v5w7go9ub0o gmail.com> wrote:
>
> Lots of interest in VMs lately - Is this to increase
security (isolating
> servers and components in case one is compromised)? Or
perhaps you are
> isolating components for the purpose of evaluating
them?
there are additional benefits, mainly for enterprise use,
such as being
able to move the virtual server to a new box in case of
failure of the
first box. This is much cheaper than maintaining an
identically configured
second box. VMWare's high-end (not free) product can do this
automatically
if partnered with a SAN. Using SAN technology the second box
could even be
off-site, providing a virtually instant disaster recovery
plan (just not a
cheap one.)
You could even save the cost of redundant box by using
Amazon's Elastic
Compute Cloud as your redundancy. Keep a copy of the image
on Amazon S3
then fire up the image if the main one goes down. Might be
a bit slower
but that beats being down.
Also snapshot technology is getting pretty cool, where you
can take a
snapshot, upgrade a virtual box, and if the upgrade fails
just roll back to
the snapshot. Beats a backup/restore cycle by a mile.
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