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Method and Means of Reducing OS Installation Time on a 3-drive RAID 5 Array

IP.com Disclosure Number: IPCOM000015943D
Original Publication Date: 2002-May-08
Included in the Prior Art Database: 2003-Jun-21

Publishing Venue

IBM

Abstract

BACKGROUND In a RAID 5 array, one stripe unit per stripe is allocated to hold the parity for the stripe where the parity is equal to the XOR'd value of all the other stripe units in the stripe. A sample 5-drive RAID 5 array may look as follows: Drive 1 Drive 2 Drive 3 Drive 4 Drive 5 Stripe 1 D1 D2 D3 D4 P1 Stripe 2 D5 D6 D7 P2 D8 Stripe 3 D9 D10 P3 D11 D12 .