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US 10,482,010 B2Granted
Persistent host memory buffer
AssigneeIntel Corporation
InventorsJames A. Boyd, John W. Carroll, Sanjeev N. Trika
Life of this patent
Estimating the term…
Abstract
An embodiment of a memory apparatus may include a persistent host memory buffer, and a memory controller communicatively coupled to the persistent host memory buffer to control communication between the persistent host memory buffer and a persistent storage media device. Other embodiments are disclosed and claimed.
Claims12
A memory apparatus, comprising:
- a persistent host memory buffer;
- and
- a memory controller communicatively coupled to the persistent host memory buffer to control communication between the persistent host memory buffer and a persistent storage media device, wherein the memory controller is further to:
- pair the persistent host memory buffer with the persistent storage media device with a soft binding in response to an identification that the persistent storage media device and the persistent host memory buffer are not expected to be permanently connected to each other, and a permanent binding in response to an identification that the persistent storage media device and the persistent host memory buffer are expected to remain permanently connected to each other;
- extend the persistent storage media device with the persistent host memory buffer by a utilization of the persistent host memory buffer as a write-back cache for the persistent storage media device only when the permanent binding is used to pair the persistent host memory buffer with the persistent storage media device;
- and
- utilize the persistent host memory buffer as a write-through cache for the persistent storage media device when the soft binding is used to pair the persistent host memory buffer with the persistent storage media device.
4 more elements
A method of controlling memory, comprising:
- persistently storing data in a persistent host memory buffer;
- controlling communication between the persistent host memory buffer and a persistent storage media device;
- pairing the persistent host memory buffer with the persistent storage media device with a soft binding in response to an identification that the persistent storage media device and the persistent host memory buffer are not expected to be permanently connected to each other, and a permanent binding in response to an identification that the persistent storage media device and the persistent host memory buffer are expected to remain permanently connected to each other;
- extending the persistent storage media device with the persistent host memory buffer by utilizing the persistent host memory buffer as a write-back cache for the persistent storage media device only when the permanent binding is used to pair the persistent host memory buffer with the persistent storage media device;
- and
- utilizing the persistent host memory buffer as a write-through cache for the persistent storage media device when the soft binding is used to pair the persistent host memory buffer with the persistent storage media device.
3 more elements
At least one non-transitory computer readable storage medium, comprising a set of instructions, which when executed by a computing device, cause the computing device to:
- persistently store data in a persistent host memory buffer;
- control communication between the persistent host memory buffer and a persistent storage media device;
- pair the persistent host memory buffer with the persistent storage media device with a soft binding in response to an identification that the persistent storage media device and the persistent host memory buffer are not expected to be permanently connected to each other, and a permanent binding in response to an identification that the persistent storage media device and the persistent host memory buffer are expected to remain permanently connected to each other;
- extend the persistent storage media device with the persistent host memory buffer by a utilization of the persistent host memory buffer as a write-back cache for the persistent storage media device only when the permanent binding is used to pair the persistent host memory buffer with the persistent storage media device;
- and
- utilize the persistent host memory buffer as a write-through cache for the persistent storage media device when the soft binding is used to pair the persistent host memory buffer with the persistent storage media device.
3 more elements
A memory controller communicatively coupled to a processor, a solid state drive, and a persistent host memory buffer to control communication between the solid state drive and the persistent host memory buffer, wherein the memory controller is to:
- pair the persistent host memory buffer with the solid state drive with a soft binding in response to an identification that the solid state drive and the persistent host memory buffer are not expected to be permanently connected to each other, and a permanent binding in response to an identification that the solid state drive and the persistent host memory buffer are expected to remain permanently connected to each other;
- extend the solid state drive with the persistent host memory buffer by a utilization of the persistent host memory buffer as a write-back cache for the solid state drive only when the permanent binding is used to pair the persistent host memory buffer with the solid state drive;
- and
- utilize the persistent host memory buffer as a write-through cache for the solid state drive when the soft binding is used to pair the persistent host memory buffer with the solid state drive.
1 more element
Dependencies are inferred from the claim text.