TBSM v6.1 marks the first time that TBSM can take advantage of the benefits of 64bit operating systems. One of the primary key benefits from this is support for larger service model instantiation within memory. Service models in excess of 100K objects should make use of properly provisioned and tuned 64bit operating system platforms. Regardless of 32bit or 64bit operating system platform selection, proper system sizing and tuning for each environment’s current state and future growth is critical. An updated version of the TBSM Performance and Tuning guide for TBSM v6.1 should be available in late Q4 2011 on the TBSM Wiki.
The following page provides recommended hardware specifications for TBSM v6.1. An important note for hardware provisioning when using a 64bit operating system is to multiply the 32-bit memory value by 1.5. For example, if the memory value for a 32-bit system is 4 GB, it is 6 GB for a 64-bit system.
The following page contains the list of supported operating systems for TBSM v6.1.
I recommend use of properly provisioned and tuned 64bit systems for all production TBSM v6.1 deployments.