Currently running BES 4.045 for Domino on VMware. My question is, is it normal for the NBES.exe process to cache large amounts of RAM? Ours normally averages approx 890Mb for 150 users.

Any help would be appreciated.

Thanks

First of all, RIM does not support the BES on a Virtual Machine..so keep that in mind if/when you talk to their support. Secondly if the configuration database is on the same box/VM as the BES, you may want to consider migrating it to a separate SQL Server. See article KB-03112 on the Blackberry Support website.

4.1.2 is supported under VMWare, so you may need to upgrade to the latest version to get support. I only have 45 users on my BES and have the same memory issue with nbes.exe. The problem started for me on 4.0.x and hasn't gone away even after the last few upgrades. I'm up to 4.1.2 with Hotfix#2 running on Domino 7.0.2, and it's still doing it.

Have you tried turning off Hyperthreading in BIOS?
Hyper-threading is Intel's name for a feature where a single processor can simultaneously run two threads. It's been built into the Pentium 4 since the start, but until recently only enabled for some Xeon chips. With all Pentium 4s from 3GHz speeds upwards, hyper-threading is enabled -- but you can turn it off in your computer BIOS. Not all software works well with hyper-threading.

^ Great idea. I've turned HT off in VMWare but I have to reboot the entire host to have it take affect. I'll try to do that tonight and see how it goes.

I've turned off HT in ESX and the BES is only running as a single-processor instance. The memory usage of nbes.exe continues to be very high. My server isn't crashing at all, though.

Dude, upgrade your server to BES 4.0.6 and see how.

I'm on 4.1.2 and still having the memory issue. Going to 4.0.6 didn't help me either.