Dell PowerEdge 4400 - Manual (Page 64)

l All Disks — All removable-media drives supported by the BIOS are treated as hard-disk drives.
l 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.
l Plug and Play SCAM Support — Provides automatic configuration of SCSI devices in operating systems that support Plug and Play. Dell
recommends that you leave this option set to Disabled.
l Reset SCSI Bus at IC Initialization — Enables the SCSI bus to be reset when the controller is initialized. The default setting is Enabled.
l Extended BIOS Translation For DOS Drives > 1 GB — Determines whether extended translation is available for SCSI hard-disk drives
with capacities greater than 1 gigabyte (GB). The default setting is Enabled.
NOTICE: Back up your hard-disk drive before you change the translation scheme. 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 GB. To support hard-disk
drives larger than 1 GB, the 78xx series host adapters include an extended translation scheme that supports hard-disk drives as large
as 8 GB, with a maximum partition size of 2 GB under the DOS operating system.
It is not necessary to enable the Extended BIOS Translation setting if you are using another operating system, such as Novell
NetWare.
When you partition a hard-disk drive larger than 1 GB, use the DOS fdisk utility as you normally would. Because the cylinder size
increases to 8 MB under extended translation, the partition size you choose must be a multiple of 8 MB. If you request a size that is not
a multiple of 8 MB, fdisk rounds up to the nearest whole multiple of 8 MB.
l Display <Ctrl><a> Message During BIOS Initialization — Determines whether the Press <CTRL><A> for SCSISelect (TM)
Utility! message appears on your screen during system start-up. The default setting is Enabled. If this setting is disabled, you can still
run the SCSISelect utility by pressing <Ctrl><a> after the host adapter BIOS banner appears.
l Multiple LUN Support — Determines whether your system supports booting from a SCSI device that has multiple LUNs. The default setting
is Disabled. Enable this option if your boot device has multiple LUNs.
l BIOS Support For Bootable CD-ROM — Determines whether the host adapter BIOS provides support for booting from a CD-ROM drive.
The default setting is Enabled.
l BIOS Support For Int 13 Extensions — Determines whether the host adapter BIOS supports disks with more than 1024 cylinders. The
default setting is Enabled.
l Support For Ultra SCSI Speed — Determines whether the host adapter supports the fast transfer rates (20–40 MB/sec). The default
setting is Enabled.
Starting the SCSISelect Utility
You can start the SCSISelect utility by pressing <Ctrl><a> when the following prompt appears briefly during start-up:
Press <CTRL><A> for SCSISelect (TM) Utility!
The first menu displays the Configure/View Host Adapter Settings and SCSI Disk Utilities options.
Using SCSISelect Menus
SCSISelect uses menus to list options that you can select. To select an option, press the up- and down-arrow keys to move the cursor to the
option; then press <Enter>.
In some cases, selecting an option displays another menu. You can return to the previous menu at any time by pressing <Esc>. To restore the
original SCSISelect default values, press <F6>.
Using the SCSI Disk Utilities
To access the SCSI disk utilities, select SCSI Disk Utilities from the menu that appears when you start SCSISelect. When the option is selected,
SCSISelect immediately scans the SCSI bus (to determine the devices installed) and displays a list of all SCSI IDs and the device assigned to
each ID.
When you select a specific ID and device, a menu appears, displaying the Format Disk and Verify Disk Media options.
NOTICE: The Format Disk option destroys all data on the hard-disk drive.
l Format Disk — Runs a utility that allows you to perform a low-level format on a hard-disk drive. Most SCSI disk drives are formatted at the
factory and do not need to be formatted again. The Adaptec Format Disk utility is compatible with the majority of SCSI disk drives.
l Verify Disk Media — Runs a utility that allows you to scan the media of a hard-disk drive for defects. If the utility finds bad blocks on the
media, it prompts you to reassign them; if you select Yes, those blocks are no longer used. You can press <Esc> at any time to exit the utility.