Re: Clustering (was: Re: HP announces new Integrity Blade Servers)
- From: JF Mezei <jfmezei.spamnot@xxxxxxxxxxxx>
- Date: Fri, 16 Dec 2005 10:36:51 -0500
Bill Gunshannon wrote:
> if anything, would be the advantage of building a cluster of, let's say,
> 2 multi-processor Vaxen like I currently have in the department and
> a dozen or so VS3100's? Could all the VS3100's run diskless getting
> all their support from the HSJ served disks on the big boxes?
Yes. And you could have a single SYSUAF etc. satellite nodes
(workstations) can still have their own batch queues, controlled from
the main central queue manager. So you could have user X submit a job
that ends up running on some worksattion while its owner is out for lunch.
These are concepts which were up and running in the 1980s and which HP
is tryng to get running on Windows 20 years later.
Also, any user could use any workstation. Each workstation has its own
root in the boot servers and that root contain the workstation specific
codes/parameters. But when you login through decwindows, you are given
your own personalised environment.
This is stuff Windows can do, but it is quite a mess to manage due to
the registry being distributed between workstation, central server and
user, and it isn't clear where an application's keys will be stored when
you install it.
In terms of lan traffic, it depends on your users. you can have
pagefiles local to the workstation, and then it is only the image
activations that really generate lan-based disk activity.
VMS clustering is really *WAY* ahead of windows in terms of supporting
workgroup workstations. Remember that it supports up to 96 workstations
in a cluster. Try that with windows.
The problem is that the owners of VMS years ago have decided that VMS
was not to flaunt its capabilities in such setups and nobody has had the
guts to get the new owners to review those 10 year old decisions by palmer.
.
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