User`s guide

Contents ● 9
Direct-attach Connections ......................................................................... 72
Backplane Connections .............................................................................. 72
SAS Expander Connections........................................................................ 73
How is SAS Different from Parallel SCSI? ....................................................... 74
Understanding RAID
Understanding Drive Segments ....................................................................... 76
Non-redundant Arrays (RAID 0)..................................................................... 76
RAID 1 Arrays ................................................................................................... 77
RAID 1 Enhanced Arrays.................................................................................. 77
RAID 10 Arrays ................................................................................................. 78
RAID 5 Arrays ................................................................................................... 79
RAID 5EE Arrays............................................................................................... 80
RAID 50 Arrays ................................................................................................. 81
RAID 6 Arrays ................................................................................................... 82
RAID 60 Arrays ................................................................................................. 82
Selecting the Best RAID Level .......................................................................... 83
Using the Adaptec RAID Configuration Utility
Introduction to the ARC Utility....................................................................... 85
Running the ARC Utility .................................................................................. 85
Navigating the ARC Utility ........................................................................ 85
Using the ACU to Create and Manage Arrays................................................. 85
Creating a New Array ................................................................................. 85
Managing Existing Arrays .......................................................................... 86
Initializing Disk Drives............................................................................... 86
Rescanning Disk Drives.............................................................................. 86
Secure Erasing Disk Drives......................................................................... 87
Using the -Select Utility to Modify Controller Settings .................................. 87
Opening a -Select Utility............................................................................. 87
Applying Changes and Exiting................................................................... 87
Modifying Your Controller’s Configuration............................................. 88
General Controller Settings........................................................................ 88
SAS-specific Controller Settings ................................................................ 89
SATA-specific Controller Settings ............................................................. 89
SCSI-specific Controller Settings............................................................... 90
Formatting and Verifying Disk Drives............................................................. 91
Locating Disk Drives......................................................................................... 91
Identifying Disk Drives..................................................................................... 91
Viewing the Event Log ...................................................................................... 92
Using the Array Configuration Utility for DOS
Getting Started .................................................................................................. 94
Working in the ACU Using Menus.................................................................. 94
Running the ACU Using Scripts ...................................................................... 95