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Installing the A6828A Adapter
Specifying SCSI Parameters
Chapter 2 31
If you want to retain the maximum data transfer rate, type main to go
back to the “Main Menu”.
If you want to change the data transfer rate (for example, to
troubleshoot communications between the adapter and an
Ultra-capable SCSI disk), go to step c.
c. If you are still in the “Service Menu,” type the following command:
scsi
path
rate
new_data_rate
where,
path
is the HBA’s path and
new_data_rate
is what you want
to change the HBA’s maximum data transfer rate to (ULTRA, for this
example).
Therefore, using the information for the HBA in step b, type the
following:
scsi 0/0/10/0/0 rate ultra
This changes the HBA’s maximum data transfer rate to ULTRA (40
MB/s).
To ensure that the data transfer rate has changed, you can repeat
step b to display the HBA’s transfer rate.
When your troubleshooting is complete, and you want to change the
adapter’s transfer rate back to MAX, go to step d.
d. If you are still in “Service Menu”, type the following command:
scsi
path
rate
new_data_rate
where,
path
is the HBA’s path and
new_data_rate
is what you want
to change the HBA’s maximum data transfer rate to (MAX, for this
example).
Therefore, using the information for the HBA in step c, type the
following:
scsi 0/0/10/0/0 rate nolimit
This changes the HBA’s maximum data transfer rate back to MAX (160
MB/s).
To ensure that the data transfer rate has changed, you can repeat
step b to display the HBA’s transfer rate.
When you are satisfied that the maximum data transfer rate is set
correctly, type main to go back to the “Main Menu.”