| Hi John,
Well, I'll take a crack at answering some of your performance
questions... Caveat, I'm not in POLYCENTER Engineering; I've done alot
of work at customer sites with MCC in the past 2 years, so here goes...
First of all, you didn't mention your configuration other than the 4600
and the 2 X terminals, so I'll *probe* abit...
. 4600 - how much memory? I would recommend that you get as much
as the box can hold. 128mg would be nice! No kidding. MCC does
much better with lots of memory since it's design uses a caching
technique.
If it is NOT practical to get alot of physical memory, use very
large PAGEFILES and lots of them. I recommend ~ 2-300mbytes (4-6
00,000 blocks) of diskspace for paging. May seem like alot, but
you'll need it.
. X Terminals - how much memory? We use 2 VXT2000s at a customer
site for VCS, which is far less resource demanding, IMHO, and
constantly run out of memory with, I believe we have either 14 or
16mb of memory in each. Again, as much as you can get, GET IT!
. Event Logging Sink - you haven't described your LAN? WAN? I
will give you an example of what I've seen... I had a LAN of
about 30-40 DNA4 entities (VAX workstations running DECnet IV) and
lots (~ 40 DECrouter 2000s), with numerous PCs and a fair amount of
LAT traffic going on for a customer. When I starting sinking any
4.* events I would see significant performance degradation on the
MCC Server. In this config I had a VAX 4090 with 64mb of memory.
. Misc - you haven't described if you have other things "planned",
ie: EXPORTER background processes with EXPORTing active?
HISTORIAN background processes with RECORDing active? Will you be
doing an ALARMS? They can be very resource intensive...
I don't mean to dissuade you against using MCC. As a matter of fact,
I have found DECnet Events an excellent candidate for using MCC and the
Data Collector has helped me with several product demos because of it's
ability to do things *other* than network management...
I would just caution you to think about ALL performance issues, plan
accordingly, and not get wrapped up in how many events/??? you can
track. If you set customer expectations to an exact value you may
regret it... From one who has done so and regretted it a couple of
times...smile. Hope this helps.
/Mic
|
| Mic,
Thanks for your quick response. Here is some more information that may
help in getting us towards some more accurate figure.
The customer configuration is:
VAX 4000 model 600
128 Meg memory
More disk than you can wave a stick at!
Display stations:
2 VXT 2000 with 10Meg memory.
The management environment is planned as 60 DECnet VAXes (a mixture of
all types from VAXstation 3100-90 to VAX 6000. The LAN comprises 6
DEChub 900s. There are also 2 DECnis 600s and a DECnis 500 in the
config.
We will be doing DECnet management of the VAXes and DECnis'. We will
be using HUBwatch (on the 4000-600) to manage the DEChub 900s.
The VAX 4000 will also be controlling POLYCENTER Scheduler which will
coordinate the backup of the systems to be managed.
The customer will require us to set an expectation of how many event
per minute the configuration will handle, and what event rate will
cause the VAX 4000 to fail/hang.
I understand that it will be more-or-less impossible to give an accurate
figure, but some approximation would be welcomed.
Regards,
John
|
| John,
Sounds like you've done alot of "upfront" planning...smile. At this
point I would recommend that you look at MCC-TOOLS (I believe it's
still on NOTED) and/or blast this question to RACER::DAVE. He has done
some performance evaluation in the past and he might be able to give
you exact figures...
With the emergence of NETVIEW, I believe some (most?) of the
development staff that did MCC are setting their sites on NETVIEW. In
which case, you might want to post a note in NOTED::NETVIEW, (I think
it's on that system??? But be ready to get spanked with: "...that
question is better handled in MCC...a bit of a mobius strip, eh? Good
luck.
/Mic
|