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5–100
CLI Commands
PORT_1_TRANSFER_RATE_REQUESTED=20MHZ
PORT_1_TRANSFER_RATE_REQUESTED=10MHZ
PORT_1_TRANSFER_RATE_REQUESTED=5MHZ
PORT_1_TRANSFER_RATE_REQUESTED=DEFAULT
NOPORT_1_TRANSFER_RATE_REQUESTED
PORT_2_TRANSFER_RATE_REQUESTED=20MHZ
PORT_2_TRANSFER_RATE_REQUESTED=10MHZ
PORT_2_TRANSFER_RATE_REQUESTED=5MHZ
PORT_2_TRANSFER_RATE_REQUESTED=DEFAULT
NOPORT_2_TRANSFER_RATE_REQUESTED
Specifies the maximum data transfer rate the controllers use when communicating
with the host. The transfer rate may need to be limited to accommodate long cables
between the subsystem and the host system. Set the same transfer rate for both
controllers in a dual-redundant configuration. When changed in a dual-redundant
configuration, you must restart both controllers in order for the new setting to take
effect. When changed in a single configuration, restart only the controller on which
the new setting will take effect.
The controller must be restarted for any changes to the data transfer rate to take effect.
Table 5–6 lists the maximum transfer rates for different lengths of fast and slow SCSI
buses. These lengths represent cable lengths plus shelf-bus lengths.
Table 5–6 Maximum SCSI-Bus Lengths for Given Data Transfer Rate
Transfer Rate
5 MHz
10 MHz
20 MHz
Meter
6
3
25
Feet
19.7
9.8
82
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