5 May
2013
5 May
'13
10:46 a.m.
With VAX/VMS,
having lots of physical memory is neither necessary nor
sufficient. More important is how the virtual memory system is configured.
Perhaps you are low on pagefile space or non-paged pool or something like
that?
I was musing on this while reviewing the install manual and it does
mention that at least 24 MB physical memory is necessary for TCP/IP
5.1. I don't know how hard and fast that is, but it's possible that
the changes I made to the pool allocation per the manual have
destabilized the system. Since I don't have much running on there,
I've reinstalled from scratch to see if I have the same problem with
no TCP/IP installed/running.
5 May
5 May
11:45 a.m.
On May 5, 2013, at 1:46 PM, Peter Coghlan wrote:
I would worry more about DECWindows needing large
amounts of memory rather
than TCP/IP but having said that, I've always used Multinet rather than TCP/IP
services so I don't know a lot about it.
Perhaps. I'm not running DECWindows, though.
I suspect the manual is saying that a typical workload
on a more capable VAX
than an MVII would need 24 MB for good performance. I think you should be able
to get by with rather less memory than that, particularly if you don't have a
graphics card.
That was essentially my assumption as well, but I'm just not 100%
sure if the pool adjustments I made to install it threw things
out of whack for my system. This is a slight bit beefier than an
MVII, but not by a lot. At some point in the near future, I'm
acquiring a VAX4000, which has a bit more to it; this one is
probably mostly going to be a curiosity or at most a file/DNS
server.
It should not be necessary to reinstall to see the
effect of not running TCP/IP
services. Just comment out the command to start it
(probably in sys$manager:systartup_vms.com) and reboot.
That part was simple, but I have no clue as of yet how to back out
the adjustments I made to the pool to run TCP/IP because I don't
fully understand AUTOGEN yet. I'll get there eventually, but I
need a stable system first and I can afford to throw the baby out
with the bathwater at the moment. :-) It's all in the Essentials
manual, but that's 500 pages, so it'll be a while before I'm done
reading it.
- Dave
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