REDUNDANT RESOURCE BALANCING IN A DATA STORAGE ARRAY
摘要
The error tolerance of an array of m storage units is increased by using a technique referred to as "dodging." A plurality of k stripes are stored across the array of storage units in which each stripe has n + r elements that correspond to a symmetric code having a minimum Hamming distance d = r + 1. Each respective element of a stripe is stored on a different storage unit. An element is selected when a difference between a minimum distance of the donor stripe and a minimum distance of a recipient stripe is greater or equal to 2. The selected element is also stored on a storage unit having no elements of the recipient stripe. A lost element of the recipient stripe is then rebuilt on the selected element.
申请公布号
WO2005006215(A3)
申请公布日期
2006.08.17
申请号
WO2004EP51382
申请日期
2004.07.07
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION;IBM UNITED KINGDOM LIMITED;HETZLER, STEVEN, ROBERT;SMITH, DANIEL, FELIX