Adaptec 29320LPE User Guide - Page 18

Chapter 4: Understanding SCSI ● 18 Using SCSI Devices If you connect SCSI devices (such as scanners, tape drives, zip drives, etc.) to your Adaptec SCSI Card, you must install the device manufacturer's proprietary software drivers. See your device's documentation for details. Combining SCSI and Non-SCSI Devices You can install an Adaptec SCSI Card in a system that already has a non-SCSI card, such as an ATA, SATA, or Serial Attached SCSI (SAS) controller. However, you cannot cross-connect the disk drives and other devices: SCSI devices must be connected to an Adaptec SCSI card, ATA devices must be connected to the ATA controller, and so on. When you install an Adaptec SCSI Card and SCSI disk drives in a system that boots from a non-SCSI disk drive, the system will continue to boot from the non-SCSI disk drive unless you change the system's CMOS configuration. You do not need to change the configuration if you just want to use the SCSI drives for additional file storage space. If your system's motherboard BIOS supports the BIOS Boot Specification (BBS) feature, you can select a different boot device without much difficulty. (To determine if the motherboard BIOS supports BBS, refer to the system documentation or contact your motherboard manufacturer.) After you install the SCSI card and SCSI devices to use different kinds of disk drives in the same system, see the following table for recommendations. Does computer BIOS support BBS? NO NO YES YES Want computer to boot from SCSI drive? NO YES NO YES Then do this: No action required. SCSI drives and non-SCSI drives can be used together. Run CMOS Setup program. Change primary disk drive setting to None or No Drives Installed (see system documentation). You will not be able to use the non-SCSI drive(s) at all when you boot from the SCSI drive. No action required. SCSI drives and non-SCSI drives can be used together. Run CMOS Setup program and select SCSI drive as boot device. SCSI drives and nonSCSI drives can be used together. Installing Multiple SCSI Cards You can install multiple SCSI cards in your system; you are limited only by the available system resources (for example, IRQ settings, I/O port addresses, BIOS addresses, and so forth). Each SCSI card you install forms a separate SCSI bus with a different set of SCSI devices. SCSI IDs can be reused as long as the ID is assigned to a device on a different SCSI card (for example, each SCSI card can have a device with SCSI ID 2). If you have two or more SCSI cards and your system boots from a SCSI disk drive, leave the SCSI card BIOS enabled on the SCSI card to which the boot disk drive is connected. Use SCSISelect to disable the SCSI card BIOS on the other SCSI cards.