Systems and methods for selective save operations in a persistent memory
In accordance with embodiments of the present disclosure, an information handling system may include a processor and a persistent memory system communicatively coupled to the processor, the persistent memory system comprising one or more persistent memory modules and a plurality of targeted save registers, each targeted save register associated with a respective portion of the persistent memory system, and each targeted save register having a value indicative of how save operations from volatile memory to non-volatile memory of the persistent memory system are to be performed with respect to the respective portion of the persistent memory system.
1. An information handling system comprising:
a processor; and
a persistent memory system communicatively coupled to the processor, the persistent memory system comprising one or more persistent memory modules and a plurality of targeted save registers, each targeted save register associated with a respective portion of the persistent memory system, and each targeted save register having a value indicative of a data criticality level for data stored in the respective portion, the data criticality level being usable to determine whether or not save operations from volatile memory to non-volatile memory of the persistent memory system are to be performed with respect to the respective portion of the persistent memory system;
wherein each of the respective portions comprises a respective Joint Electron Device Engineering Council (JEDEC) rank of the persistent memory system.
2. The information handling system of claim 1 , wherein the value of each targeted save register sets forth, with respect to the respective portion of the persistent memory system associated with the targeted save register, a second portion of the persistent memory system to which data stored in volatile memory of the respective portion of the persistent memory system is duplicated in response to a condition for performing a save operation.
3. The information handling system of claim 1 , wherein the processor is configured to, alone or in combination with a memory controller of the persistent memory system, set values of the targeted save registers for usage and provisioning of the persistent memory system by the processor.
4. The information handling system of claim 3 , wherein the processor is further configured to set values of the targeted save registers based on capacity of a battery for powering a save operation, and/or health of computer-readable media making up the persistent memory system.
5. A method comprising, in a persistent memory system comprising one or more persistent memory modules and a plurality of targeted save registers associated with respective portions of the persistent memory system:
storing a respective value in each of the plurality of targeted save registers; and
performing a save operation of the persistent memory system based on the respective values, wherein each respective value is indicative of a data criticality level for data stored in the respective portion, the data criticality level being usable to determine whether or not save operations from volatile memory to non-volatile memory of the persistent memory system are to be performed with respect to the respective portion of the persistent memory system;
wherein each of the respective portions comprises a respective Joint Electron Device Engineering Council (JEDEC) rank of the persistent memory system.
6. The method of claim 5 , wherein the value of each targeted save register sets forth, with respect to the respective portion of the persistent memory system associated with the targeted save register, a second portion of the persistent memory system to which data stored in volatile memory of the respective portion of the persistent memory system is duplicated in response to a condition for performing a save operation.
7. The method of claim 5 , wherein setting the values comprises setting values of the targeted save registers for usage and provisioning of the persistent memory system by a processor communicatively coupled to the persistent memory system.
8. The method of claim 7 , further comprising setting values of the targeted save registers based on capacity of a battery for powering a save operation, and/or health of computer-readable media making up the persistent memory system.
9. A persistent memory system comprising:
one or more persistent memory modules; and
a plurality of targeted save registers, each targeted save register associated with a respective portion of the persistent memory system, and each targeted save register having a value indicative of a data criticality level for data stored in the respective portion, the data criticality level being usable to determine whether or not save operations from volatile memory to non-volatile memory of the persistent memory system are to be performed with respect to the respective portion of the persistent memory systems;
wherein each of the respective portions comprises a respective Joint Electron Device Engineering Council (JEDEC) rank of the persistent memory system.
10. The persistent memory system of claim 9 , wherein the value of each targeted save register sets forth, with respect to the respective portion of the persistent memory system associated with the targeted save register, a second portion of the persistent memory system to which data stored in volatile memory of the respective portion of the persistent memory system is duplicated in response to a condition for performing a save operation.
11. The persistent memory system of claim 9 , wherein values of the targeted save registers are set by a processor communicatively coupled to the persistent memory system, alone or in combination with a memory controller of the persistent memory system, for usage and provisioning of the persistent memory system by the processor.
12. The persistent memory system of claim 11 , wherein the processor is further configured to set values of the targeted save registers based on capacity of a battery for powering a save operation, and/or health of computer-readable media making up the persistent memory system.