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49-6
Cisco MDS 9000 Family Fabric Manager Configuration Guide
OL-17256-03, Cisco MDS NX-OS Release 4.x
Chapter 49 Configuring the SAN Extension Tuner
Using the SAN Extension Tuner Wizard
Step 4 (Optional) Change the default settings for the transfer data size and the number of concurrent SCSI read
and write commands as follows:
a. Set Transfer Size to the number of bytes that you expect your applications to use over the FCIP link.
b. Set Read I/0 to the number of concurrent SCSI read commands you expect your applications to
generate over the FCIP link.
c. Set Write I/0 to the number of concurrent outstanding SCSI write commands you expect your
applications to generate over the FCIP link.
Note There is only one outstanding I/O at a time to the virtual N-port that emulates the tape behavior.
d. Check the Use Pattern File check box and select a file that you want to use to set the data pattern
that is generated by the SAN extension tuner. See the “Data Pattern” section on page 49-3.
Step 5 Click Next.
You see the Results dialog box (see Figure 49-6).
Figure 49-6 Results Dialog Box
Step 6
Click Start to start the tuner. The tuner sends a continuous stream of traffic until you click Stop.
Step 7 Click Show to see the latest tuning statistics. You can select this while the tuner is running or after you
stop it.
Step 8 Click Stop to stop the SAN extension tuner.
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