Adaptec 2940U2W Manuel d'instructions télécharger pdf (Page 25)

Configuring the SCSI Card 2940U2W with SCSISelect

SCSI Device Configuration

Note:

To configure settings for a SCSI peripheral, you must

know its SCSI ID (see Using SCSI Disk Utilities on page 22).

■

Initiate Sync Negotiation—When set to Yes, initiates synchro-

nous data transfer negotiation (Sync Negotiation) between the

peripheral and SCSI card. Leave this setting set to Yes unless

any attached SCSI peripheral connected to the SCSI card does

not support synchronous negotiation.

■

Maximum Sync Transfer Rate—Determines the maximum

synchronous data transfer rate the SCSI card supports. Use the

maximum value of 80.0. If your peripheral is not Ultra SCSI,

select a transfer rate of 10.0.

■

Enable Disconnection—When set to Yes, allows the SCSI

peripheral to disconnect from the SCSI bus. Leave the setting

at Yes if two or more SCSI peripherals are connected to the

SCSI card. If only one SCSI peripheral is connected, changing

the setting to No results in slightly better performance.

■

Initiate Wide Negotiation—When set to Yes, the SCSI card

attempts 16-bit data transfer (wide negotiation). When set to

No, the SCSI card uses 8-bit data transfer unless the SCSI

peripheral requests wide negotiation.

Note:

Set Initiate Wide Negotiation to No if you are using an

8-bit SCSI peripheral that hangs or exhibits other perfor-

mance problems with 16-bit data transfer.

■

Send Start Unit Command—When set to Yes, sends the Start

Unit Command to the SCSI peripheral at bootup.

■

BIOS Multiple LUN Support—When set to Yes, the SCSI card

BIOS provides boot support for a SCSI peripheral with multi-

ple LUNs. Leave this setting set to No if your boot device does

not have multiple LUNs.

■

Include in BIOS Scan—When set to Yes, the SCSI card BIOS

includes the peripheral as part of its BIOS scan at bootup.

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Adaptec 2940U2W Manuel d'instructions Page 25