MIS Systems Thread, SIMS + Terminal Server in Technical; We are due to have SIMS installed in a couple of weeks and we have already decided to go down ...
20th April 2008, 10:00 PM #1
SIMS + Terminal Server
We are due to have SIMS installed in a couple of weeks and we have already decided to go down the terminal server route for accessing it. The question is, has anybody already done this and what kind of impact has it had on the server running SIMS on it and it being a terminal server.
We will have approx 200 clients connecting to it - not all at once, but I would estimate maybe 150 at any one time.
20th April 2008, 10:08 PM #2
- Rep Power
We also use SIMS over Terminal Server and I have had no issues at all - although I would have a server with alot of RAM - we have 2 servers with 4gb in each but plan to upgrade this to 8gb in both
20th April 2008, 10:09 PM #3
SIMS does run on terminal server but it's quite a heavy app you'll need some steam to run 150 instances of it on one box.
20th April 2008, 10:10 PM #4
- Rep Power
I would also advise NOT to use the SIMS DB server as the termnal server.
20th April 2008, 10:10 PM #5
Oh yes .. plenty of RAM ... and look at load balancing your TS as well ... pretty key to be honest. This is the voice of bitter experience.
20th April 2008, 10:12 PM #6
I would base the number of servers you need as 30 concurrent connections per server. SIMS is a hog, especially as staff create SIMS reports or complete marksheets in Assessment Manager .. then disconnect leaving an open connection (usually without saving the marksheets they are working on!)
20th April 2008, 10:13 PM #7
So have SQL Server on another server hosting the DB and the main app + ts on a server together?
Originally Posted by bjeffery
20th April 2008, 10:15 PM #8
Based on that figure, I need 5 servers
Originally Posted by GrumbleDook
20th April 2008, 10:24 PM #9
Yes probably. You will need x64 if you want to use less servers as 150 concurrent sessions on a single server and you will hit the 2GB Kernel Memory Limit. Not that i can see any server running 150 SIMS instances.
20th April 2008, 10:30 PM #10
Not to mention SIMS.net not being supported on x64... Although there is no reason you can't have multiple 32bit virtual installs of windows on a 64bit host OS.
Originally Posted by cookie_monster
20th April 2008, 10:36 PM #11
Oxfordshire run SIMS on Terminal Services for most of their schools. I will try to find out how many servers they use but I think its around 6 for 150 schools including secondaries.
20th April 2008, 10:38 PM #12
Exactly. I might have to re-think this one slightly. Has anybody run SIMS in a virtual environment?
Originally Posted by localzuk
20th April 2008, 10:39 PM #13
Is SIMS still not supported on x64? Poor very poor
20th April 2008, 10:40 PM #14
It would also be nice to know how many concurrent connections they have, if poss.
Originally Posted by PhilNeal
20th April 2008, 10:54 PM #15
We have a load of schools running SIMS (including FMS)on TS via both Sun Ray and Secure Global desktop.
You need to look very carefully at the concurrency.
I would listen to bjeffery and Grumbledook as they have been running it in anger for sometime.
Is it going to be straight RDP connections ? If so you will need to loadbalance. Do not use the MS loadbalancer as it sucks. 2x is a good option if hardware loadbalancing is too expensive (which for most it is)
Based on our experience 5 servers is about right, you may get away with 4 if the loadbalancer does a good job.
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