Inventor

ASH KEVIN J

US260 patents

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

ASH KEVIN J

IBM

Caching source blocks of data for target blocks of data

Create virtual track buffers in NVS using customer segments to maintain newly written data across a power loss

Increased cache performance with multi-level queues of complete tracks

Configuring cache memory from a storage controller

Picket fence staging in a multi-tier cache

Using a track format code in a cache control block for a track in a cache to process read and write requests to the track in the cache

Populating a secondary cache with unmodified tracks in a primary cache when redirecting host access from a primary server to a secondary server

Maintaining track format metadata for target tracks in a target storage in a copy relationship with source tracks in a source storage

Invoking input/output (I/O) threads on processors to demote tracks from a cache

RE-MRU of metadata tracks to reduce lock contention

Grouping of tracks for copy source to target destage on global mirror secondary

Recovery from cache and NVS out of sync

Grouping of tracks for copy source to target destage on global mirror secondary

Selecting cache lists indicating tracks in a cache to process for demotion

System and method of dynamic allocation of non-volatile memory

Apparatus and method to rebuild an NVS image using cache data

Increasing through-put of a storage controller by autonomically adjusting host delay

Efficient address test for large memories

Dynamic reconfiguration of memory in a multi-cluster storage control unit

Using multi-tiered cache to satisfy input/output requests

Using trap cache segments to detect malicious processes

Maintaining an active track data structure to determine active tracks in cache to process

Using multi-tiered cache to satisfy input/output requests

Determining an optimum number of threads to make available per core in a multi-core processor complex to executive tasks

Using a machine learning module to select one of multiple cache eviction algorithms to use to evict a track from the cache

Multi-mode address mapping management

Adaptive caching in a multi-tier cache

Using track locks and stride group locks to manage cache operations

Adjusting insertion points used to determine locations in a cache list at which to indicate tracks based on number of tracks added at insertion points

Using trap cache segments to detect malicious processes

Recovering from write cache failures in servers

Using trap storage units to detect malicious processes

Cache management based on types of I/O operations

Selecting one of multiple cache eviction algorithms to use to evict a track from the cache using a machine learning module

Destaging metadata tracks from cache

Dynamically adjusting a number of memory copy and memory mapping windows to optimize I/O performance

Updating a track format table used to provide track format codes for cache control blocks with more frequently accessed track format metadata

Performing workload balancing of tracks in storage areas assigned to processing units

Synchronously performing commit records operations

Data loss avoidance in multi-server storage systems

Providing track format information when mirroring updated tracks from a primary storage system to a secondary storage system

Transfer track format information for tracks in cache at a primary storage system to a secondary storage system to which tracks are mirrored to use after a failover or failback

Transfer track format information for tracks in cache at a first processor node to a second process node to which the first processor node is failing over

Handling cache and non-volatile storage (NVS) out of sync writes

Copy source to target management in a data storage system

Cache management based on types of I/O operations

Adjustment of the number of tasks for a cache storage scan and destage application based on the type of elements to be destaged from the cache storage

ASH KEVIN J

Caching source blocks of data for target blocks of data

Populating a first stride of tracks from a first cache to write to a second stride in a second cache

Managing unmodified tracks maintained in both a first cache and a second cache