Adaptec ASR-6805Q User Manual page 6

What's a SAS Port?.......................................................................................................................................70
What's a SAS Address?.................................................................................................................................70
What's a SAS Connector?.............................................................................................................................71
What do SAS Cables Look Like?....................................................................................................................71
How are Disk Drives Identified in SAS? ........................................................................................................71
What are the SAS Connection Options?.......................................................................................................71
Direct-attach Connections...............................................................................................................71
Backplane Connections...................................................................................................................72
SAS Expander Connections..............................................................................................................72
How is SAS Different from Parallel SCSI? .....................................................................................................73
Appendix B Understanding RAID.............................................................................................................................74
Understanding Drive Segments....................................................................................................................74
Non-redundant Arrays (RAID 0)...................................................................................................................74
RAID 1 Arrays ...............................................................................................................................................75
RAID 1 Enhanced Arrays...............................................................................................................................75
RAID 10 Arrays..............................................................................................................................................76
RAID 5 Arrays................................................................................................................................................77
RAID 5EE Arrays............................................................................................................................................78
RAID 50 Arrays..............................................................................................................................................79
RAID 6 Arrays................................................................................................................................................80
RAID 60 Arrays..............................................................................................................................................80
Comparing RAID Levels................................................................................................................................81
Appendix C Using the Adaptec RAID Configuration Utility......................................................................................82
Introduction to the ARC Utility.....................................................................................................................82
Ctrl-A or uEFI/HII? ...........................................................................................................................82
Running the ARC Utility...................................................................................................................82
Using the ARC Utility to Create and Manage Arrays....................................................................................83
Creating a New Array.......................................................................................................................83
Managing Existing Arrays.................................................................................................................83
Creating Bootable Arrays....................................................................................................83
Modifying Power Management Settings.............................................................................84
Modifying Cache Settings....................................................................................................84
Initializing Disk Drives......................................................................................................................85
Rescanning Disk Drives....................................................................................................................85
Secure Erasing Disk Drives...............................................................................................................85
Stopping a Secure Erase......................................................................................................85
Uninitializing Disk Drives.................................................................................................................85
Managing Global Hot Spares...........................................................................................................85
Creating and Managing JBODs.........................................................................................................86
Creating a New JBOD..........................................................................................................86
Managing Existing JBODs....................................................................................................86
Converting a JBOD Into a Simple Volume............................................................................86
Managing the maxCache Pool.........................................................................................................86
Using the ARC Utility to Modify Controller Settings.....................................................................................87
Opening the Controller Settings Tool ..............................................................................................87
Applying Changes and Exiting..........................................................................................................87
Modifying Your Controller's Configuration......................................................................................87
General Controller Settings ................................................................................................87
Power Management Settings..............................................................................................89
Checking Backup Unit Status...........................................................................................................89
Formatting and Verifying Disk Drives...........................................................................................................89
Locating Disk Drives.....................................................................................................................................89
Identifying Disk Drives .................................................................................................................................90
Viewing the Event Log .................................................................................................................................90
Appendix D Using the Adaptec Flash Utility............................................................................................................91
System Requirements..................................................................................................................................91
Compatibility Notes.........................................................................................................................91
Before You Begin..........................................................................................................................................91
Proprietary and Confidential to PMC-Sierra, Inc.
Document No.: CDP-00277-02-A Rev. A, Issue:
Serial Attached SCSI RAID Controllers Installation and User's Guide
6