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HP PCIe U320 SCSI Host Bus Adapter User Manual

Page 29

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Sync Rate (MB/s)

Choices: Sync DT IU (320, 160), Sync DT (160, 80, 40), Sync ST WIDE

(80, 40, 20, 10), Sync ST Narrow (40, 20, 10, 5)
Default: Sync DT IU 320.
If synchronous transfers are enabled, the sync rate specifies the maximum rate

at which host bus adapter negotiates with the selected target ID. Set the rate

to the maximum value supported by the host adapter. If excessive SCSI errors

occur, you have long cables, or there are many devices on the bus, you

might want to reduce the Sync Rate value. Slowing the transfer rate may

increase the reliability of the SCSI bus.

Wide Transfers

Choices: Disabled, Enabled
Default: Enabled
Specifies whether the initiator negotiates wide data transfers. If the parameter

is disabled, narrow data transfers are negotiated. Wide Transfers is

automatically set to Enabled when the Sync Rate specifies a DT rate. The

DT sync rates must have wide data transfers.

User guide

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