Considerations for running arcplan / Longview Analytics 64-bit
As the adoption of 64-bit architecture increases, in particular for database systems, you will have to deal with platform specific requirements for running arcplan on a 64-bit operating system like Windows 2008 R2. The 64-bit platform can provide performance improvements mainly based on higher RAM capacity and therefore higher user scalability.
The following 3 questions are critical in your preparation:
- Are you upgrading your backend system to 64-bit?
- Does the backend system provide a 64-bit client?
- How can the 32-bit client be used to connect?
First, when upgrading your backend server to 64-bit it is the perfect time to evaluate 64-bit arcplan / Longview Analytics as well. Especially when you are running memory-intensive or high-concurrency applications, the 64-bit platform can easily address capacity or scalability issues. 64-bit operating systems can manage much more physical memory than 32-bit systems. Please verify the respective limit of the server operating system in use [Resource: Memory Limits for Microsoft Windows Releases].
Second, most vendors have released 64-bit clients of their latest versions that can leverage the advantages of the new architecture. Please make sure that the specific database version actually does have the proper client components available in 64-bit. If in doubt, please check with your database vendor accordingly. Your support team can specify what exact client components are necessary. If there is no 64-bit client available, you need to run 32-bit Longview Analytics for compatibility reasons.
Here are a few installation hints to help you in your transition to 64-bit Windows:
1. Be aware of different program directories
- 32-bit applications are installed to C:\Program Files(x86)
This applies to Application Designer, Administration Console and 32-bit client components
- 64-bit applications are installed to C:\Program Files
This applies to Longview Analytics server and 64-bit client components
2. Be aware of different system directories
- 32-bit application space is %WINDIR%\SysWOW64
- 64-bit application space is %WINDIR%\System32
This sounds counterintuitive, but Microsoft implemented this concept for backwards compatibility
3. Be aware of different ODBC interfaces
- 32-bit Data Source Administrator is located in %WINDIR%\SysWOW64\odbcad32.exe
- 64-bit Data Source Administrator is located in %WINDIR%\System32\odbcad32.exe
You would need two DSN entries if you run 64-bit Longview Analytics Server and the Application Designer on the same server. [Microsoft Knowledge Base Note]
4. Be aware of environment variable PATH
When Longview Analytics loads a third party component, it will first refer to the directories listed in the PATH variable. If multiple client versions are installed, Longview Analytics will load the first accessible components. Make sure the respective release and 32-bit/64-bit version is listed first.