Contents iii
Contents
Proprietary Notice
Using This Guide
Text Conventions................................................................................................................viii
Safety Notices.......................................................................................................................ix
Safety Notices for Users Outside of the U.S.A. and Canada...........................................ix
Care and Handling.................................................................................................................x
1. Overview
Overview.............................................................................................................................1-2
High Capacity Cooling Fans...............................................................................................1-4
Power Supplies ...................................................................................................................1-4
Security...............................................................................................................................1-4
DAU Functionality .............................................................................................................1-5
Hot Spare Feature..........................................................................................................1-5
Write Cache Feature......................................................................................................1-6
Cross Call Feature .........................................................................................................1-6
Initial Assignment Feature ............................................................................................1-7
Auto Assignment Feature..............................................................................................1-7
Expand LUN Feature.....................................................................................................1-8
Auto Repair Mode.........................................................................................................1-8
Repair Time Feature......................................................................................................1-8
1BBU Cache Enable Mode ...........................................................................................1-9
1CNT (Controller) Cache Enable Mode........................................................................1-9
Access Control Features................................................................................................1-9
Path Fail-over Feature .................................................................................................1-12
Dynamic Capacity Expansion .....................................................................................1-12
Management Software.................................................................................................1-12
RAID Configurations ..................................................................................................1-13
Arbitrary Logical Disk Capacity .................................................................................1-14
Maximum Logical Disk Capacity................................................................................1-14
Features and Indicators.....................................................................................................1-15
Front Panel ..................................................................................................................1-15
Front Chassis Features and Indicators.........................................................................1-15
Rear Chassis Features..................................................................................................1-17
Power Supply...............................................................................................................1-18
DAU Controller...........................................................................................................1-19
Battery Backup Unit....................................................................................................1-21
SVP Service Processor................................................................................................1-22
Disk Enclosure Controller..........................................................................................1-23
2. Setting Up The DAU
Overview.............................................................................................................................2-2
Selecting a Site ...................................................................................................................2-2
Unpacking the DAU and Rack Mounting Hardware..........................................................2-3
Rack-Mount Subsystem Assembly.....................................................................................2-5
Before You Begin..........................................................................................................2-5
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