Inventor

CHEN XIANGPING

US154 patents

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

CHEN XIANGPING

EMC IP HOLDING CO LLC

Storage system configured for controlled transition between asynchronous and synchronous replication modes

Creating replicas at user-defined points in time

Storage system with efficient re-synchronization mode for use in replication of data from source to target

Storage system with consistent termination of data replication across multiple distributed processing modules

Storage system with consistent initiation of data replication across multiple distributed processing modules

Journal destage relay for online system checkpoint creation

Checkpointing of metadata into user data area of a content addressable storage system

Techniques using an encryption tier property with application hinting and I/O tagging

Method and system for automatic replication data verification and recovery

Consistent input/output (IO) recovery for active/active cluster replication

Storage system with multiple write journals supporting synchronous replication failure recovery

Ensure volume consistency for online system checkpoint

Storage system with flexible scanning supporting storage volume addition and/or recovery in asynchronous replication

Retention policies for unscheduled replicas in backup, snapshots, and remote replication

Online system checkpoint alert and handling

Online system checkpoint recovery orchestration

Layout-independent cryptographic stamp of a distributed dataset

Smart data movement among virtual storage domains

Using storage defragmentation function to facilitate system checkpoint

Storage tiering in replication target based on logical extents

EMC CORP

Managing relocation of slices in storage systems

Managing host data placed in a container file system on a data storage array having multiple storage tiers

Managing data deduplication in storage systems based on storage space characteristics

Managing data deduplication in storage systems based on I/O activities

Optimizing data location in data storage arrays

Managing storage space in storage systems

Managing data deduplication in storage systems

Optimizing compression based on data activity

Suspending data replication

Live migration of a tree of replicas in a storage system

Selective defragmentation based on IO hot spots

Applying data access activity measurements

Network block services for client access of network-attached data storage in an IP network

Adaptive hash-based data replication in a storage system

Optimized tender processing of hash-based replicated data

Managing data relocation in storage systems

Storage system asynchronous data replication cycle trigger with empty cycle detection

Dynamic replication error retry and recovery

CHEN XIANGPING

Techniques for managing deduplication based on recently written extents

Techniques for managing placement of extents based on a history of active extents

Managing data placement based on flash drive wear level

Managing deduplication density

Measuring data access activity

Automated data relocation among storage tiers based on storage load

Iterating in parallel for deduplication

Deduplication efficiency

CAN KHANG

Balancing I/O load on data storage systems

Scheduling data relocation activities using configurable fairness criteria

LONG MATTHEW

Iterating for deduplication

ZHOU SIYU

Methods and apparatus for managing multiple point in time copies in a file system