Given this nested 0+3 raid system: RAID 0 MABB Al A5 B1 B5 Disk 0 A2 A6 B2 B6 Disk 1 RAID 0+3 RAID 3 RAID 0 A3 A7 B3 B7 373 Disk 2 A4 A8 B4 B8 ABB Disk 3 RAID 0 Ap(1-2) Ap(5-6) Bp(1-2) Bp(5-6) Disk 4 Ap(3-4) Ap(7-8) Bp(3-4) Bp(7-8) Disk 5 Note how each of the parity disks holds the parity information for two disks. Example: Ap(1-2) holds the parity for A1 and A2. What is the maximum number of disk failures that this system can tolerate without any data loss? What is the minimum number of disks that could cause a data loss (mirroring level)?

Given this nested 0+3 raid system: RAID 0 MABB Al A5 B1 B5 Disk 0 A2 A6 B2 B6 Disk 1 RAID 0+3 RAID 3 RAID 0 A3 A7 B3 B7 373 Disk 2 A4 A8 B4 B8 ABB Disk 3 RAID 0 Ap(1-2) Ap(5-6) Bp(1-2) Bp(5-6) Disk 4 Ap(3-4) Ap(7-8) Bp(3-4) Bp(7-8) Disk 5 Note how each of the parity disks holds the parity information for two disks. Example: Ap(1-2) holds the parity for A1 and A2. What is the maximum number of disk failures that this system can tolerate without any data loss? What is the minimum number of disks that could cause a data loss (mirroring level)?

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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