Adaptec 131U2 - AAA RAID Controller Manuál s instrukcemi stáhnout pdf (Strana 68)

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AAA-130U2 Series Installation and Hardware Guide

■ Enable Disconnection—When set to Yes, allows the SCSI

device to disconnect from the SCSI bus (sometimes called

Disconnect/Reconnect). Leave the setting at Yes if two or more

SCSI devices are connected to the AAA-131U2/133U2. If only

one SCSI device is connected, changing the setting to No

results in slightly better performance.

■ Initiate Wide Negotiation—When set to Yes, the AAA-131U2/

133U2 attempts 16-bit data transfer (wide negotiation). When

set to No, the AAA-131U2/133U2 uses 8-bit data transfer

unless the SCSI device requests wide negotiation. For Ultra2

SCSI devices, make sure this option is set to Yes.

Note:

Set Initiate Wide Negotiation to No if you have

an 8-bit SCSI device that hangs or exhibits other

performance problems.

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

Unit Command to the SCSI device at bootup.

■ Include in BIOS Scan—When set to Yes, the AAA-131U2/

133U2 BIOS includes the device as part of its BIOS scan at

bootup. Leave this setting at Yes for all hard disks that are part

of an array.

Additional Options

■ Array1000U2 BIOS—When set to Enabled, the AAA-131U2/

133U2 BIOS is installed and all Int13 (except bootable

CD-ROM) devices are supported at boot time. When set to

Disabled, the AAA-131U2/133U2 BIOS is not installed.

■ BIOS Support for Bootable CD-ROM—When set to Enabled,

the AAA-131U2/133U2 BIOS allows booting from a CD-ROM

drive.

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Adaptec 131U2 - AAA RAID Controller Manuál s instrukcemi Strana 68