Browse Prior Art Database

Method for Data Transfer for Raid Subsystem

IP.com Disclosure Number: IPCOM000118005D
Original Publication Date: 1996-Aug-01
Included in the Prior Art Database: 2005-Mar-31
Document File: 2 page(s) / 37K

Publishing Venue

IBM

Related People

Iwasa, H: AUTHOR [+3]

Abstract

Disclosed is a method for data transfer of RAID subsystem to improve the data read performance.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 100% of the total text.

Method for Data Transfer for Raid Subsystem

      Disclosed is a method for data transfer of RAID subsystem to
improve the data read performance.

      This method handles reading data from an HDD and generates the
data using parity data concurrently.  The flow chart shows the detail
of this method when a host system issues a DATA READ command to a
RAID subsystem.  When an HDD retries reading data many times, it
takes several  seconds.  Moreover, it might fail to read data from an
HDD.  In such a  case, this method shortens the time to read data and
improves the data-read performance.