Contents ●9
Understanding RAIDUnderstanding Drive Segments .......................................................................70
Nonredundant Arrays (RAID 0)...................................................................... 70
RAID 1 Arrays................................................................................................... 71
RAID 1 Enhanced Arrays..................................................................................71
RAID 10 Arrays................................................................................................. 72
RAID 5 Arrays................................................................................................... 73
RAID 5EE Arrays...............................................................................................74
RAID 50 Arrays................................................................................................. 75
RAID 6 Arrays................................................................................................... 76
RAID 60 Arrays................................................................................................. 76
Selecting the Best RAID Level ..........................................................................77
Using the Adaptec RAID Configuration UtilityIntroduction to the ARC Utility....................................................................... 79
Running the ARC Utility.................................................................................. 79
Navigating the ARC Utility........................................................................ 79
Using the ACU to Create and Manage Arrays.................................................79
Creating a New Array................................................................................. 79
Managing Existing Arrays ..........................................................................80
Initializing Disk Drives............................................................................... 80
Rescanning Disk Drives.............................................................................. 80
Secure Erasing Disk Drives.........................................................................81
Using the -Select Utility to Modify Controller Settings ..................................81
Opening a -Select Utility............................................................................. 81
Applying Changes and Exiting................................................................... 81
Modifying Your Controller’s Configuration.............................................82
General Controller Settings........................................................................ 82
SAS-specific Controller Settings ................................................................83
SATA-specific Controller Settings............................................................. 83
SCSI-specific Controller Settings............................................................... 84
Formatting and Verifying Disk Drives.............................................................85
Viewing the Event Log...................................................................................... 85
Using the Array Configuration Utility for DOSGetting Started ..................................................................................................87
Working in the ACU Using Menus..................................................................87
Running the ACU Using Scripts...................................................................... 88
About Playback Mode ................................................................................88
About Record Mode................................................................................... 89
Creating the Script File Manually.............................................................. 89
Array Definition Block Keywords.............................................................. 90
Channel Definition Block Keywords—SCSI only.....................................93
ACU Error Codes........................................................................................94
Sample Scripts............................................................................................. 95