Users Guide

A–Troubleshooting
Fibre Channel Diagnostics
116 BK3254601-00 J
4. From the Data Size list, click the number of bytes to transfer.
Valid values are 8, 16, 32, 64, 128, 256, 512, 1024 and 2048. For Linux
operating systems only, you can select data size values from 2048, 4096,
8192 up to 65535 (2K bytes to 64K bytes).
5. To set the test frequency, do one of the following:
 In the Number of Tests box, type or select the number of tests you
want to run. Testing stops when the passes complete. The valid range
is between 1 and 65535 for loopback tests and between 1 and 10,000
for read/write buffer tests.
 Select the Test Continuously check box. You determine when testing
stops.
6. In the On Error box, click one of the following to determine how errors are
handled. This selection applies whether you entered the Number of Tests
or selected Test Continuously.
 Ignore on Error—Ignores errors and continues the test sequence.
 Stop on Error—Stops the test sequence once an error is
encountered.
 Loop on Error—Uses the same data pattern and test until the failure
is cleared.
7. In the Test Increment box, type or select the number of passes you want to
run before the test stops.
The valid range is between 1 and 10,000 and must be less than or equal to
the value in the Number of Tests box (see Step 5). For example, if the
Number of Tests box contains 100 and the Test Increment box contains
15, 100 tests are run in seven passes. The first six passes run 15 tests each;
the seventh pass runs 10 tests: (6  15) + 10 = 100.
To run the loopback or read/write buffer test:
1. Click the Loopback Test or Read/Write Buffer Test button.
The diagnostic tests warning appears.
2. Click Yes if there are no I/Os active and you want to proceed with the test or
click No to cancel the diagnostic test.
3. If you selected the loopback test, a dialog box allows you to select Internal
Loopback or External Loopback. Click the appropriate test and then click
OK.
4. If you selected Yes in Step 2, a dialog box appears with the data pattern
generated. Click Stop when you want to end the test.