Thanks very much, Mike, I'll probably give that a shot myself just to
see what happens.
Mike Pflugfelder wrote:
The licensing and the files / pointers that you mentioned earlier were
the only issues that we encountered. Once all of that was taken care
of, it's very simple to just move the 'application' from one server to
another. If I ever do get a chance to try it on dis-similar hardware,
I'll post a note.
-Mike
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Peter Ivanick
Sent: Tuesday, January 24, 2006 7:24 AM
To: [email protected]
Subject: Re: [U2] Hypothetical question about switching server frontends
to SAN w/o reinstalling Universe
Many thanks, Mike, good to know it's in use elsewhere. Anything I'm
missing in terms of the switching out frontends/enabling a new system,
or any gotchas I need to worry about apart from the licensing issues you
bring up?
Mike Pflugfelder wrote:
Peter,
I've had experience with the same setup. We have used SANs for
High Availability environments as well as Disaster Recovery as well.
We
have used this in quite a few environments that want to be up all of
the
time. We haven't ever tried to use different OS releases as the
purpose
was to keep the system highly available or be back online as quickly
as
possible. One of the advantages of a scenario like this is that you
don't need to purchase additional licenses for other servers. If your
application goes down for any reason, you fail the disks over to
another
server and bring up the application from there. In other scenarios,
you
either purchase hot-standby licenses at a percentage of the full
price,
or purchase a small user license, then replace it with the full
license
if you have a disaster situation.
Just my $0.02
Michael Pflugfelder | Systems Integrator | Keystone Information
Systems
| 856-722-0700 | [EMAIL PROTECTED]
--
Peter Ivanick
Web Services and Instructional Technologies
School of Veterinary Medicine, University of Pennsylvania
Email: [EMAIL PROTECTED]
Phone: 215.573.2306 Fax: 215.573.8777
http://www.vet.upenn.edu/
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