Table 3.3

Adapter Properties Fields and Descriptions (Cont.)

 

 

 

 

Field

 

Field Type

Descriptions

 

 

[Value]

 

 

 

 

CHS Mapping

Configuration

Defines how the Cylinder Head Sector (CHS) values

 

 

[SCSI Plug and Play

are mapped onto a disk without pre-existing partition

 

 

Mapping / Alternate

information.

 

 

CHS Mapping]

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 the user 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

 

Configuration

Indicates the delay in seconds between spinups of

(Seconds)

 

[1 to 15]

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

Configuration

Indicates whether an adapter has one or more

Server

 

[Yes / No]

devices attached that are shared with one or more

 

 

 

other adapters and therefore, the Symbios SCSI

 

 

 

BIOS should avoid SCSI bus resets as much as

 

 

 

possible.

 

 

 

This option allows the user to enable an adapter to

 

 

 

join a cluster of adapters without doing any SCSI bus

 

 

 

resets. This is a requirement for Microsoft Cluster

 

 

 

Server. The default value is No with an alternate

 

 

 

option of Yes.

 

 

 

Termination Control

Configuration

If available, the field indicates whether an adapter has

 

 

[Auto / Off]

automatic termination control.

 

 

 

Auto means that the adapter automatically

 

 

 

determines whether it should enable or disable its

 

 

 

termination. Auto is the default state unless

 

 

 

termination is done manually, in which case, the

 

 

 

configuration is Off.

 

 

 

<Restore Defaults>

Executable

Press Enter to obtain default settings.

 

 

 

 

The Symbios SCSI BIOS Configuration Utility Menus

3-9

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Image 49
LSI SYM8953U manual Is moved between adapters from different vendors