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EMC Fibre Channel Storage-System Configuration Planning Guide
vii
1-1 Storage System Models ................................................................................ 1-2
1-2 Nodes - Initiator and Target ....................................................................... 1-3
1-3 Switch and Hub Topologies Compared .................................................... 1-6
1-4 A Switch Zone ............................................................................................... 1-7
1-5 16-Port Switch, Back View .......................................................................... 1-7
1-6 Nine-Port Hub .............................................................................................. 1-8
1-7 Disk-Array Processor Enclosure (DPE) ..................................................... 1-9
1-8 Types of Storage System Installation ....................................................... 1-10
1-9 Components of a SAN ............................................................................... 1-11
1-10 Sample SAN Configuration ...................................................................... 1-13
1-11 Data and Configuration Access Control with Shared Storage ............ 1-14
1-12 Storage System with a DPE and Three DAEs ........................................ 1-15
1-13 Storage System Hardware for Unshared Storage .................................. 1-17
2-1 Multiple LUNs in a RAID Group ............................................................... 2-3
2-2 RAID 5 Group ............................................................................................... 2-5
2-3 RAID 3 Group ............................................................................................... 2-6
2-4 RAID 1 Mirrored Pair .................................................................................. 2-7
2-5 RAID 1/0 Group (Mirrored RAID 0 Group) ............................................ 2-9
2-6 How a Hot Spare Works ............................................................................ 2-11
2-7 Disk Space Usage in the RAID Configurations ...................................... 2-16
3-1 Sample Shared Switched High Availability installation ........................ 3-3
4-1 Unshared Direct Installation ....................................................................... 4-2
4-2 Sample Clustered Installation ..................................................................... 4-3
5-1 Shared and Unshared Storage .................................................................... 5-2
5-2 DPE Storage-System Components – Rackmount Model ........................ 5-3
5-3 Rackmount System with DPE and DAEs .................................................. 5-4
5-4 Shared Storage Systems ............................................................................... 5-5
5-5 Storage System Types for Unshared Storage ........................................... 5-7
5-6 DPE Components - Deskside Model ......................................................... 5-8
5-7 Disks and Disk IDs ....................................................................................... 5-9
Figures