VAX resources for 7.10F

[Mike Palandri]

At 09:18 AM 3/12/98 +0000, John Webster wrote:
>With the onset of millennial madness a number of our VAX-based clients are
at last considering a move from PH 6.10 to 7.10. They have heard that it
requires an increase in system resources to run 7.10 and are afraid of the
performance impact. 
>
>The Installation instructions lay out the minimum resources, and the steps
to adjust for each particular application, so we are unable to give them a
precise answer until after they have converted, because the resources
required are dependent on the application design. 
>
>We'd obviously like to give them some guidance beforehand of what to
expect. Based on your experiences, does anyone have a feel for (a) what the
increase in system resource requirements (Page file quota, Working set
extent...) is likely to be and (b) whether there will be a degradation in
performance, assuming that a straight conversion is done and none of the
new 7.10 features are implemented.
>
>The answer expected is of the form "We needed to increase Page file quotas
by 10%; response time was 50% slower"
>
>BTW, we are impressed with Power2000 - well worth a close look if you
haven't already sorted yourselves out.
>Thanks
>John
>

We're primarily using 6.20e.  When we first brought up a handfull (4) of
7.10f3 users (OVMS 7.1 Alpha) on a newly developed system, there were no
problems.  We eventually brought up another 30-40 users on the same system,
though these do all use the system concurrently.  Perhaps coincidentally,
we started experiencing system quota errors in non-PH processes.
F'rinstance, Backup was unable to create or extend a disk file on a disk to
disk backup; users in non-PH systems that add a new log file record every
time the system is accessed were unable to create the log record and could
not access the system.  The error messages did refer to user quotas.  I
asked our systems person what she increased to cure the problem, she said:

"I increased fillm=800 and astlm=500.  I don't know if that is overkill,
but it seems to have worked."

We have not noted any change in response time between 620e and 710f3.



Mike