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Old 07-25-2006, 02:21 PM   #1 (permalink)
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Default Maximum number of simultaneous wireless activation

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We are planning a migration of users from one BES server to another. We will be migrating a set of users at a time, so on one morning, there might be anywhere from 20 to 60 people trying to perform enterprise activation over the air (not all at once, but as they come in in the morning they will be doing the activation)

Is there a limit on how many activations can occur at once? (In terms of the BES server being able to handle the load). What is the maximum number you guys have tried with?

Thanks
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Old 07-25-2006, 02:33 PM   #2 (permalink)
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Yes there is a maximun number of simultaneous activations you want to perform. But, this is going to depend on your server load. Activation is a CPU intensive process. You will have to keep an eye on it and see at what point your activations fail to start or mail delivery slows to an unacceptable level.
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Old 07-25-2006, 02:34 PM   #3 (permalink)
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BES Limits it to 7 users per thread
I would recommend do 7 users at a time.It depends on other factors like:

How many Exchange servers?
DO users belong to same or different Exchange Servers?
If multi Exchange servers - are you using SQL or MSDE?
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Old 07-25-2006, 03:00 PM   #4 (permalink)
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Currently it will be 4 or 6 Exchange servers, and to the new BES server, all of the exchange servers will be in the local network. And the database is on a separate SQL server/cluster. The new BES server will be a VM on VMWare ESX with 2.41 GHz Opteron and 2GB RAM.

What do you exactly mean by 7 users per thread? How many threads can it have then?

Thanks again for your inputs.
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Old 07-25-2006, 04:51 PM   #5 (permalink)
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Hmmm,Check with RIM if they would support you on a SQL Cluster and Vmware,as far as I know,they support neither.

So speaking in a general manner:
BES uses worker threads to complete any given processes
A single Messaging Agent on BES 4.0 can have upto 100 threads
Using MSDE you can have upto 2 Messaging Agents
Using SQL 5 by default ,can increase to 15 using a registry hack

BES dedicates 2-4 Threads per Exchange Server to keep a MAPI connection alive,while rest are using for users.

In you scenario since you are using SQL and using have 4-6 servefs with 2--6- uses,I don't see any performance issues.

But you enviorment will not be supported by RIM Tech support
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Old 07-25-2006, 04:52 PM   #6 (permalink)
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slimbim,

7 is a good number. I think my max was around 15 simultaneous and somewhere over 100 in one day.

Don't forget to backup the BBs and then do a handheld wipe on the since you're moving from BES-a to BES-b. (If anyone knows a better way to delete the IT Policy from the HH please let me know)

Also, don't be afraid to go old-school. If you can do a wired Enterprise Activation, go for it. You'll save a LOT of time.

HTH
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Old 07-25-2006, 05:55 PM   #7 (permalink)
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IT policy should be overwritten in general,when a BES is activated to a new BES

There is another way to remove an IT policy from the BB than wiping, trust me wiping is better
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Old 07-26-2006, 09:41 AM   #8 (permalink)
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Is backing up the devices necessary? Most users do not have desktop manager installed unless they had the blackberry's since long time ago when we had 3.6. It will be a pain to get them to all install the desktop manager and then guide them on backing up/restoring the data. Only thing I will lose by doing a wipe will be personal settings, such as profiles, and maybe personally installed applications correct? I think we are mostly concerned with Outlook data (messages, calendar, contacts) and those should be all synced again when the activation is done correct?

Total users after the entire migration happens will be around 500. I say it will be about 20 to 60 users at a time doing enterprise activation because we are not moving everyone at once but in phases.

We've had 1 physical BES machine, and 3 BES VM's for a while, and had no issues performance wise. Also no issues getting t-support from RIM, if they do check into that. It is not just a VM running on a desktop, but clustered ESX enterprise attached to SAN (have more than 20 production VM's on it, and more than 30 including test VM's).

Again Thank you all for your inputs. I love browsing this board for information at least once a day.
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Old 07-26-2006, 10:06 AM   #9 (permalink)
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Quote:
Originally Posted by slimbim
We are planning a migration of users from one BES server to another. We will be migrating a set of users at a time, so on one morning, there might be anywhere from 20 to 60 people trying to perform enterprise activation over the air (not all at once, but as they come in in the morning they will be doing the activation)

Is there a limit on how many activations can occur at once? (In terms of the BES server being able to handle the load). What is the maximum number you guys have tried with?

Thanks
I am going back to your orignal post,we did not get into how you are migrating your users.There are ways of migrating users with minimal impact or downtime.

Your question was more in line to server performance.

If you have T - Support from RIM call them and discuss a Migration Startegy with minimal impact.

Lets say,there are ways to migrate without having the customer do anything at all
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Old 07-26-2006, 10:27 AM   #10 (permalink)
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I've talked to T-support in the beginning of planning, and since we have separate BES database for each BES server (each BES server is for different exchange environment), they told me that we would have to wipe the device and re-activate since the users are moving from one database to another. Unless there is another way you know of to do this?
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Old 07-26-2006, 12:11 PM   #11 (permalink)
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So,you mean,users are being moved to a different Exchange Org aswell?
If that is the case,RIM is right...

Seprate Databases can be consolidated..
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