Gregg Eldred

As my memory isn't the greatest, I may think that I have installed 64-bit Lotus Domino on a 64-bit operating system. But how can I tell for certain? Thankfully, you have two methods of determining this. First, the server console will display Server name: Lotus Domino Server (64-bit) at the top of the window. If that isn't enough, you can use a Server Statistic to display the version of Domino (this is my personal preference).

At the Domino Server Console type:

sh stat server.version.architecture

Press enter.

You will see a response similar to this:



Mystery solved.

Why would you consider running 64-bit Domino on a 64-bit operating system? From the FAQ: 64-bit version of Domino:

The objective of 64-bit Domino is to provide memory relief for customers who today are experiencing problems such as crashes, or system hangs due to out of memory conditions. Several customers are experiencing such issues where memory limitations especially on Windows and AIX result in such problems. If you are currently running 32-bit Domino on AIX or Microsoft® Windows® 64-bit platforms, and you are experiencing low memory issues, then using 32- bit or 64- bit Domino on Windows 2003 64-bit relieves this memory issue. In the case of AIX, 64-bit Domino is required for relief.

On Windows: 32-bit Domino on 64-bit Windows can obtain ~4GB of memory from the OS. 64-bit Domino on 64-bit Windows can obtain much more from the OS.

On AIX: If you were constrained by memory segments running 32-bit Domino on 64-bit AIX, then 64-bit Domino can help with that constraint.

Essentially, in 64-bit Domino, both OS memory limits and internal Domino memory limits have been greatly expanded, and this helps with memory issues that might be experienced with 32-bit Domino.

Link: FAQ: 64-bit version of Domino

Link: How to determine whether a computer is running a 32-bit version or 64-bit version of the Windows operating system

Link: How to determine if the operating system is running in 64 bit mode

Technorati tag: SnTT Show-n-Tell Thursday

Comment posted by Tony Austin07/21/2010 11:43:35 AM
Homepage: http://notestracker.com/

Nice tip, Gregg! ... I have 32-bit Domino running on 64-bit Windows 7 Ultimate (for development and testing purposes only, not for production). Here's what I get:

> sh stat server.version.architecture
Server.Version.Architecture = 32 Bit
1 statistics found

> sh ser
Lotus Domino (r) Server (Release 8.5.1FP3 for Windows/32) 22/07/2010 01:33:17

What's the significance of the "Windows/32" part of the response? What would I get from the latter command (sh ser) if I had 64-bit Domino installed?

---