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Avago Technologies LSI20160 User Manual

Page 35

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Starting the SCSI BIOS Configuration Utility

2-11

Copyright © 1993–2001 by LSI Logic Corporation. All rights reserved.

CHS Mapping

Configuration
[SCSI Plug and
Play Mapping/
Alternate CHS
Mapping]

Defines how the Cylinder Head Sector (CHS) values are mapped
onto a disk without pre-existing partition information.
SCSI Plug and Play Mapping automatically determines the most
efficient and compatible mapping.
Alternate CHS Mapping utilizes an alternate, possibly less
efficient mapping that may be required if a device is moved
between adapters from different vendors.

Caution: Neither of these options has any effect after a disk has
been partitioned using the

FDISK

command. The

FDISK

utility

is a tool that you can use to delete partition entries, one or all of
them. If all partition entries are deleted, it is necessary to reboot
to clear memory or the old partitioning data will be reused, thus
nullifying the previous operation. Use care to ensure that the
correct disk is the target of an

FDISK

command.

Spinup Delay
(secs)

Configuration
[1 to 15]

Indicates the delay in seconds between spinups of devices
attached to an adapter. Staggered spinups balance the total
electrical current load on the system during boot. The default
value is 2 seconds.

Secondary
Cluster Server

Configuration
[Yes/No]

Indicates whether an adapter has one or more devices attached
that are shared with one or more other adapters. Therefore, the
SDMS SCSI BIOS should avoid SCSI bus resets as much as
possible.

This option allows you to enable an adapter to join a cluster of
adapters without doing any SCSI bus resets. This is a
requirement for the Microsoft Cluster Server. The default value is
No with an alternate option of Yes.

Termination
Control

Configuration
[Auto/Off]

If available, the field Indicates whether an adapter has automatic
termination control. If not available, its current status is either
Auto or Off.

Auto means that the adapter automatically can determine
whether it should enable or disable its termination.

Off means termination on the adapter is off and the devices at
the ends of the SCSI bus must terminate the bus.

Restore
Defaults

Executable

Press Enter to obtain default settings.

Table 2.3

Adapter Properties Menu Fields and Descriptions (Cont.)

Field

Field Type
[Value]

Descriptions

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