https://lenovopress.lenovo.com/servers/options/memory
In addition, you can take advantage of a memory configurator, which is available at the following site:
https://dcsc.lenovo.com/#/memory_configuration
Enable Software Guard Extensions (SGX)
Intel
® 
Software Guard Extensions (Intel
® 
SGX) operates under the assumption that the security perimeter 
includes only the internals of the CPU package, and leaves the DRAM untrusted.
Make sure to refer to “Memory module installation rules and order” section in the User Guide or Hardware 
Maintenance Guide, which specifies whether your sever supports SGX and lists the memory module 
population sequence for SGX configuration.
Complete the following steps to enable SGX.
Step 1.  Restart the system. Before the operating system starts up, press the key specified in the on-screen 
instructions to enter the Setup Utility. (For more information, see the “Startup” section in the LXPM 
documentation compatible with your server at 
https://sysmgt.lenovofiles.com/help/topic/lxpm_ 
frontend/lxpm_product_page.html
.)
Step 2.  Go to System settings ➙ Processors ➙ UMA-Based Clustering and disable the option.
Step 3.  Go to System settings ➙ Processors ➙ Total Memory Encryption (TME) and enable the option.
Step 4.  Save the changes, then go to System settings ➙ Processors ➙ SW Guard Extension (SGX) and 
enable the option.
RAID configuration
Using a Redundant Array of Independent Disks (RAID) to store data remains one of the most common and 
cost-efficient methods to increase server's storage performance, availability, and capacity. 
RAID increases performance by allowing multiple drives to process I/O requests simultaneously. RAID can 
also prevent data loss in case of a drive failure by reconstructing (or rebuilding) the missing data from the 
failed drive using the data from the remaining drives.
RAID array (also known as RAID drive group) is a group of multiple physical drives that uses a certain 
common method to distribute data across the drives. A virtual drive (also known as virtual disk or logical 
drive) is a partition in the drive group that is made up of contiguous data segments on the drives. Virtual drive 
is presented up to the host operating system as a physical disk that can be partitioned to create OS logical 
drives or volumes.
An introduction to RAID is available at the following Lenovo Press website:
https://lenovopress.lenovo.com/lp0578-lenovo-raid-introduction
Detailed information about RAID management tools and resources is available at the following Lenovo Press 
website:
https://lenovopress.lenovo.com/lp0579-lenovo-raid-management-tools-and-resources
Notes: 
•  Before setting up RAID for NVMe drives, follow the below steps to enable VROC: 
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ThinkSystem SR850 V3 System Configuration Guide