Inventor

YANG LIFENG

CN103 patents

⚠️ This page may combine multiple inventors who share the name “YANG LIFENG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

YANG LIFENG

EMC IP HOLDING CO LLC

Flush strategy for using DRAM as cache media system and method

Disk activity balancing in mapped raid storage arrays by data remapping

System and method for creating mapped RAID group during expansion of extent pool

Methods, devices and computer readable mediums for data synchronization

Caching techniques duplicating dirty data in secondary cache

Method and apparatus for data copy

Storage device array integration of dual-port NVMe device with DRAM cache and hostside portion of software stack system and method

System and method for end to end QoS solution for data storage systems

Task-based framework for synchronization of event handling between nodes in an active/active data storage system

Methods and devices for writing data into a degraded array using a persistent cache

Method, device and computer program product for managing storage system

Method and device for managing storage system

Adaptive change of redundancy level of raid

Cache management method, storage system and computer program product

Method, apparatus and computer program product for managing address in storage system

Method, apparatus and computer program product for managing storage system

Method and device of managing storage system

Method and apparatus for failure recovery of storage device

Method, device and computer programme product for storage management

Data recovery method, data recovery system, and computer program product

Methods, apparatuses, and computer program products for controlling write requests in storage system

Method of storage management, storage system and computer program product

Method and device for managing storage system

Method, device and computer program product for cache management

Method and devices for managing cache

Methods, devices and computer readable mediums for managing storage system

Storage system and method for storage control

Method and apparatus for controlling access to a disk array

Method and device for rebuilding RAID

Devices and methods for a data storage device

Method and apparatus for online reducing caching devices

Method and apparatus for facilitating wear leveling of solid state disk

Method and system for managing storage system using first and second communication areas

Method and system for locking storage area in storage system

Method and apparatus for operating hybrid storage devices

Data storage system with core-affined thread processing of data movement requests

Method and apparatus for expanding cache size for cache array

Flushing pages from solid-state storage device

Flushing pages from solid-state storage device

Integration of NVMe device with DRAM cache system and method

EMC CORP

Three layer key wrapping for securing encryption keys in a data storage system

Storing multiple encryption keys to protect data at rest

Balancing allocated cache pages among storage devices in a flash cache

Flash disk cache management for increased virtual LUN availability

ABB POWER T & D CO

Adaptive quadrilateral characteristic distance relay

One-terminal fault location system that corrects for fault resistance effects

Protective relay with improved DFT function

Fault type classification algorithm

EATON CORP

Apparatus providing on-line indication of frequency of an AC electric power system

EMC IP Holding Company