User Guide

iv Sun StorEdge T3 and T3+ Array Configuration Guide • August 2001
Logical Volumes 16
Guidelines for Configuring Logical Volumes 17
Determining How Many Logical Volumes You Need 17
Determining Which RAID Level You Need 18
Determining Whether You Need a Hot Spare 18
Creating and Labeling a Logical Volume 19
Setting the LUN Reconstruction Rate 19
Using RAID Levels to Configure Redundancy 20
RAID 0 21
RAID 1 21
RAID 5 21
Configuring RAID Levels 22
3. Configuring Partner Groups 23
Understanding Partner Groups 23
How Partner Groups Work 25
Creating Partner Groups 26
4. Configuration Examples 27
Direct Host Connection 27
Single Host With One Controller Unit 28
Single Host With Two Controller Units Configured as a Partner Group 29
Host Multipathing Management Software 30
Single Host With Four Controller Units Configured as Two Partner
Groups 31
Single Host With Eight Controller Units Configured as Four Partner
Groups 32
Hub Host Connection 34
Single Host With Two Hubs and Four Controller Units Configured as Two
Partner Groups 34