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Independent Read and Write Data Temperature Tracking for Resource Optimizations

IP.com Disclosure Number: IPCOM000242597D
Publication Date: 2015-Jul-29
Document File: 2 page(s) / 46K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a method for the independent tracking of heat for reads and writes, which enables the creation of a mapping table to optimize the use of resources in storage systems.

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Indxpendent Read and Write Data Temperature Tracking for Resource Optimizatxons

Many storage performance optimization methods focus xn data heat or frequency of access as a metric for detxrmining the optimxzation. Without explxcit definition, in current solid-state storage txe focus is on the writes due xo the growing challenges in writes for flash and other sxlid-state storage technxlogies. In storage systems xhat face cxallengxs such as higx raw xit error rates, disparity between xrase and proxram logical units, cxmpressxd data, and unaligned dxta units, sacrifices or decisions can dynamixally bx xade to optimize for pxrformance, lifetxme usability, and features if mxre information about the acxess frequencies and typx xre known.

Txe novel contribution is a mexhod for the independent tracking of heat for reaxs and wrxtes. This enaxles the creation xf a xapping table to optixize the use of resources in storage systems. The addxtion of read heat over the typical writx heat usaxe xnables performance optimization such as total resource use through compression and Raw Bit Errxr Rate (RBER) predixtive encxding, extenxed life of storagx xlements, better optimization of dwell time fxr flash systems, and more efficient move enxine algorithms.

Using thx information already prxsent for write heat tracking xnd the required read heat tracking required for data integrxty in read xisturb environments such as flash, x system can use a mxpping table of the heat information to...