Chapter 1: About This Guide l 12What You Need to Know Before You BeginYou should be familiar with computer hardware, data storage, Redundant Array ofIndependent Disks (RAID) technology, and the characteristics of input/output (I/O)technology used by your HostRAID controller. Because SAS is a newer I/O technology, anintroduction is provided in the Appendix A.Note: Because this guide covers multiple Adaptec HostRAID controllers, some of the features andfunctions described may not be available for your controller.Terminology Used in this GuideBecause you can use your HostRAID controller to manage data storage in a variety ofconfigurations from DAS to NAS to SAN, the generic term “storage space is used to refer tocontrollers and disk drives being managed with Adaptec Storage ManagerTM or the otherutilities described in this Guide.Many of the terms and concepts referred to in this Guide have multiple names. To maintainconsistency, they are represented as:● Controller (also known as host bus adapter, board)● Disk drive (also known as hard disk, hard drive, or hard disk drive)● Array (also known as logical drive)Note: In DAS environments, Adaptec Storage Manager User’s Guide refers to arrays as logicaldrives. Your RAID controller creates arrays, which your operating system and Adaptec StorageManager recognizes as logical drives. In NAS environments, Adaptec Storage Manager displaysboth arrays and logical drives. For more information, refer to the Adaptec Storage Manager User'sGuide for Direct Attached Storage on the Adaptec Storage Manager Installation CD.Conventions Used in This GuideIn this documentation, the term SAS-only means that the requirement, feature, or procedure isapplicable only to SAS HostRAID controllers.The term SATA-only means that the requirement, feature, or procedure is applicable only toSATA HostRAID controllers.How to Find More InformationYou can find more information about your HostRAID controller, and the software and utilitiesincluded with it in these documents:● Readme.txt—Describes details about updated product information and known issues;located on the HostRAID Installation CD.● Adaptec Storage Manager User’s Guide—Describes how to install and use the AdaptecStorage Manager software located on the Adaptec Storage Manager Installation CD. SeeManaging Your Storage Space on page 49 for more information.● Adaptec Storage Manager online Help—Describes how to use the Adaptec Storage Managersoftware.● Command Line Utility for Direct Attached Storage User’s Guide—Describes how to use theAdaptec HostRAID Controller Configuration (HRCONF) command line utility to