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Super Intel® Optane™Persistent Memory 200 Series Configuration User's Guide
create namespaces in PMem 200 Series modules, the ndctl utility is recommended for the
Linux operating system, and PowerShell cmdlets, for Microsoft Windows operating systems.
Types of Namespaces
When a PMem module is configured in App Direct Mode, the namespace can be provisioned
in one of the following modes:
•
Filesystem-DAX (FSDAX: File-System Direct Access) mode: This mode is used as the
default mode of a namespace with Direct Access capability enabled for workloads and
working-sets.
•
Device DAX (DEVDAX: Device Direct Access) mode: This mode is used to assign Per-
sistent Memory to a virtual machine, or to register Persistent Memory for RDMA. It can
also be used for gigantic mappings.
•
Sector: This mode is used to host legacy file systems that do not checksum metadata
(instructions) or applications. It can be used for small boot volume.
•
RAW Mode: This mode is used for a memory disk that does not support Direct Access
mode.
1.4 Specifications
Operating Speed
PMem 200 Series operates at 3200 MHz DDR4 memory bus speed.
Capacity
PMem 200 Series modules are offered in capacities of 128GB, 256GB, and 512GB.
Additional Specifications
When set to App-Direct Mode, Intel PMem 200 Series provides additional data security
support, including secure-erasing and data-encryption. Intel PMem 200 Series encrypts
data using AES 256-bit encryption, and it supports the following memory functions:
ECC
ECC (Error-Correcting Code) memory, a type of computer data storage, can detect and
correct most-common internal data corruptions and errors. ECC memory is usually used in
computers that cannot tolerate data corruptions or memory errors such as computers used
for scientific or financial purposes. Normally, ECC memory maintains a memory system
