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Contents ● 9
Understanding RAID
Understanding 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 Utility
Introduction 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 DOS
Getting 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