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SCSI Device Configuration
The SCSI device settings allow you to configure certain parameters
for each device on the SCSI bus. To configure settings for a specific
device, you must know the SCSI ID assigned to that device. If you are
not sure of the SCSI ID, see Using the SCSI Disk Utilities on page A-3.
Initiate Sync Negotiation—This option determines whether
synchronous data transfer negotiation (Sync Negotiation)
between the device and SCSI channel is initiated by the SCSI
channel. Normally, you should leave Initiate Sync Negotiation
set to Enabled, because most SCSI devices support synchronous
negotiation and because it allows for faster data transfer.
Maximum Transfer Rate—This option determines the maxi-
mum data transfer rate that the SCSI channel supports. The
effective data transfer rate is doubled when Initiate Wide
Negotiation is set to Yes. For example, a transfer rate of
20 MBytes/sec becomes 40 MBytes/sec.
Enable Disconnection—This option determines whether the
SCSI channel allows the SCSI device to disconnect from the
SCSI bus (sometimes called Disconnect/Reconnect). This
option should be enabled for maximum performance.
Initiate Wide Negotiation—This option determines whether
the SCSI channel attempts 16-bit data transfer instead of 8-bit
data transfer. The effective data transfer rate is doubled when
16-bit data transfer is used. For example, a transfer rate of
10 MBytes/sec becomes 20 MBytes/sec. If you have a Wide
SCSI device, make sure this option is enabled.
Send Start Unit Command—This option determines whether
the Start Unit Command is sent to the SCSI device at bootup
(most devices do not require this).
Include in BIOS Scan—This option determines whether the
Array1000xA BIOS supports hard disk drives attached to the
SCSI channel. When set to Yes, the ARO-1130SA BIOS controls
the hard disk drive. When set to No, the ARO-1130SA BIOS
does not control the hard disk drive.
Configuring ARO-1130SA with the SCSISelect Utility
A-5
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