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Conference bulova::decw_jan-89_to_nov-90

Title:DECWINDOWS 26-JAN-89 to 29-NOV-90
Notice:See 1639.0 for VMS V5.3 kit; 2043.0 for 5.4 IFT kit
Moderator:STAR::VATNE
Created:Mon Oct 30 1989
Last Modified:Mon Dec 31 1990
Last Successful Update:Fri Jun 06 1997
Number of topics:3726
Total number of notes:19516

52.0. "Need improved DECwindows cluster installation" by HICKRY::MAEHNER () Fri Jan 27 1989 12:38

		DECwindows installation on big clusters

Hi,

we have a mixed NICI cluster with 4 CI members and currently 20 NI cluster
member workstations. As we have several system disks, you have to install 
DECwindows on each of the disk. We use our cluster for CAD engineering, and
various CAD-tools we use allow the cluster-wide installation on a particular
disk on the cluster disk farm, as some other VMS layered products do as well.

We don't use DECwindows currently because most of tha applications haven't
converted to the DECwindows programming calls, but we use it experimentally.
Anyway, for large clusters, it would be good if the none-device specific code 
(programming libraries, common sharable fonts etc.) could be stored cluster 
wide on some cluster disk (specified at installation time). This would reduce
the installation time and disk usage a lot. 

Do you anticipate to make DECwindows a "cluster tool"? Why didn't you do it
in the first place?

Herbert Maehner, SASE, MSESU


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52.1What does cluster tool mean?IAGO::SCHOELLERWho's on first?Fri Jan 27 1989 13:189
>Do you anticipate to make DECwindows a "cluster tool"? Why didn't you do it
>in the first place?

I think I know what you mean.  However, if I do then you have misunderstood
DECwindows.  Think of DECwindows as part of the OS.  There are some optional
parts but it is still essentially part of VMS or ULTRIX not a layered product.

Dick

52.2sure, part of the OS, but think distributed...DEADWD::MAEHNERFri Feb 03 1989 10:1612
    ...but even if it's part of the OS, it doesn't mean that ALL DECwindows
    files have to reside on the system disk. Don't restrict the OS to
    the system disk, think distributed. I did a modified DECwindows
    installation into a cluster-wide central directory and got most
    of the functions working. At least the programming libraries should
    be on a central place...
    
    Thanks for your understanding, anyway....
    
    Herbert
    

52.3STAR::ROBERTSat Feb 04 1989 08:2014
As part of the SBT program, the VMS/BSPE group will be looking at
ways to generalize access to software to allow a much more distributed
mode of operation.  The benefits of this will apply within VAXclusters
and to DECwindows inherently.

In general, we would like read-only access to certain types of
data on the net to be simple, transparent, and where performance
allows, effective.

This isn't very high-tech, more a matter of making the system/cluster/network
management easy, and removing some unnecessary locality restrictions.

- greg