Adaptec 2944UW Installation Guide - Page 8

s Include in BIOS Scan-This option determines whether Int 13h devices (hard disk drives) attached to the SCSI bus are recognized by the host adapter BIOS and are installed as devices on the system without the need for device driver software. Advanced Host Adapter Settings The advanced host adapter settings should not be changed unless absolutely necessary. s Reset SCSI Bus at IC Initialization-This option allows you to enable or disable SCSI bus resets generated by the host adapter during power-on initialization and after a hard reset. The default setting is Enabled. s Host Adapter BIOS-This option enables or disables the host adapter BIOS. The default setting is Enabled. Note: Several SCSISelect options are not valid unless the host adapter BIOS is enabled. See the table on page 5. If you are booting from a SCSI disk drive connected to the host adapter, the BIOS must be enabled. You should disable the host adapter BIOS if the peripherals on the SCSI bus (for example, CD-ROM drives) are all controlled by device drivers and do not need the BIOS. s Support Removable Disks Under BIOS as Fixed Disks-This option controls which removable-media drives are supported by the host adapter BIOS. The default setting is Boot Only. The following choices are available: - Boot Only-Only the removable-media drive designated as the boot device is treated as a hard disk drive. - All Disks-All removable-media drives supported by the BIOS are treated as hard disk drives. - Disabled- No removable-media drives are treated as hard disk drives. In this situation, software drivers are needed because the drives are not controlled by the BIOS. Caution: If a removable-media SCSI device is controlled by the host adapter BIOS, do not remove the media while the drive is on or you may lose data! If you want to be able to remove media while the drive is on, install your removable-media device driver and set this option to Disabled. s Extended BIOS Translation for DOS Drives > 1 GByte-This option determines whether extended translation is available for SCSI hard disks with capacities greater than 1 GByte. The default setting is Enabled. Caution: If you decide to change the translation scheme, back up your disk drives first! All data is erased when you change from one translation scheme to another. The standard translation scheme for SCSI host adapters provides a maximum accessible capacity of 1 GByte. To support disk drives larger than 1 GByte, the AHA-2944UW includes an extended translation scheme. This scheme supports disk drives as large as 8 GBytes under MS-DOS with a maximum partition size of 2 GBytes. Extended BIOS Translation is used only with MS-DOS 5.0 or above. You do not need to enable this option if you are using another operating system such as NetWare, OS/2, Windows NT™, or UNIX. When you partition a disk larger than 1 GByte, use the MS-DOS fdisk utility as you normally would. Because the cylinder size increases to 8 MBytes under extended translation, the partition size you choose must be a multiple of 8 MBytes. If you request a size that is not a multiple of 8 MBytes, fdisk rounds up to the nearest whole multiple of 8 MBytes. s Display Message During BIOS Initialization-This option determines whether the message Press for SCSISelect (TM) Utility! appears on your screen during system bootup. The default setting is Enabled. If this setting is disabled, you can still invoke the SCSISelect utility by pressing 7