Adaptec 131U2 Hardware Guide - Page 68
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UPC - 760884136041
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AAA-130U2 Series Installation and Hardware Guide s 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. s 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. s Send Start Unit Command-When set to Yes, sends the Start Unit Command to the SCSI device at bootup. s 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 s 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. s BIOS Support for Bootable CD-ROM-When set to Enabled, the AAA-131U2/133U2 BIOS allows booting from a CD-ROM drive. Ì A-6