Dell PowerEdge 4300 Dell PowerEdge 4300 Systems User's Guide - Page 40
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The AIC-7890 host adapter supports up to six 1.6-inch or 1-inch internal SCSI hard-disk drives via a standard SCSI backplane board. The AIC-7860 host adapter supports up to three externally accessible SCSI devices, such as the CD-ROM drive and a tape drive unit, in the system's external drive bays. The Dell PowerEdge 4300 system can support up to two 1-inch SCSI drives in the external drive bay using the optional removable drive cage. The AIC-7890 and AIC-7860 host adapters and the optional AHA-2940U2W host adapter are all part of the Adaptec 78xx series of SCSI controllers, and all use the 78xx series of SCSI device drivers provided by Dell. The Adaptec SCSI basic input/output system (BIOS), which is stored in your computer system's flash memory or on the AHA-2940U2W SCSI controller card, links these SCSI device drivers to the AIC-7890 and AIC-7860 SCSI controller chips or the optional AHA-2940U2W SCSI controller card. If you are using an optional Dell PowerEdge Expandable RAID Controller, the corresponding SCSI device drivers are installed at the same time as the SCSI device drivers for the AIC-7890, AIC-7860, and AHA-2940U2W host adapters. You can also refer to your Dell PowerEdge Expandable RAID Controller documentation for information on installing your SCSI device drivers. For instructions on configuring the SCSI device drivers for RAID controllers, see the appropriate sections in this chapter. For instructions on installing SCSI hardware devices such as hard-disk drives, tape drives, or CD-ROM drives, trained service technicians should see Chapter 9, "Installing Drives in the External Bays," and Chapter 10, "Installing Hard-Disk Drives," in the Installation and Troubleshooting Guide. After the SCSI devices are installed, you may need to install and configure one or more SCSI device drivers so that your SCSI devices can communicate with your operating system. The BIOS for the built-in AIC-7890 and AIC-7860 SCSI controllers includes the menudriven SCSISelect configuration utility, which allows you to change SCSI controller settings without opening the computer. SCSISelect also contains SCSI disk utilities that let you low-level format or verify the disk media of your SCSI hard-disk drives. You can start the SCSISelect utility by pressing when the following prompt appears briefly during start-up: Press for SCSISelect (TM) Utility. The first menu displays two options: Configure/View Host Adapter Settings SCSI Disk Utilities 3-2 Dell PowerEdge 4300 Systems User's Guide