Recommendations for installation

Minimum requirements for your Touchstone(Re) installation.

Note: While model files can be deployed locally on the Analysis Server (compute node), we recommend that you use a model share for cost savings and efficiency.

Table 1. Recommendations for a Touchstone(Re) 2025 (13.0) installation
	Client Machine user interface	Application Server IIS	Analysis Manager HPC head node	Analysis Engines HPC compute node	Model Share
Cores	4 cores 8 GB RAM 250 GB storage	4 cores 8 GB RAM 250 GB storage	4 cores 8 GB RAM 250 GB storage	8 cores 128 GB RAM¹ 500 GB storage² Up to 5 TB storage³	4 cores 16 GB RAM Up to 7 TB storage
Operating System	Windows 11 Windows Server 2022 Standard	Windows Server 2022 Standard	Windows Server 2022 Standard	Windows Server 2022 Standard
Third-party Software		HPC 2019 Update 3 Microsoft IIS 10.0	HPC 2019 Update 3	HPC 2019 Update 3
Scaling	Scales with the number of users	Scales with the number of users	Supports HPC Pack fail-over clustering	Scales based on number of required concurrent analyses
Notes		Load balance options		HPC automatically handles redundancy and fail-over

Note:

For small installations, leave some space on the compute nodes for the operating system.
If you wish to make adjustments for your particular installation, contact the Technical Services Group.

¹ For smaller use cases like single peril or a smaller portfolio (< 1 million locations), a 1:8 CORE:RAM ratio is still viable to run Touchstone. For Touchstone Re configurations a 1:8 CORE:RAM ratio is sufficient.

² Space requirements may change based on the number of cores in the compute node.

³ If models are deployed locally, storage requirements are directly related to licensed models.