HP StorageWorks MSA 2/8 HP StorageWorks Fabric OS Procedures V3.1.x/4.1.x User - Page 223

Troubleshooting [pattern_width] [pattern_size] Specify the width of the pattern which the user specified-it could be 1, 2, or 4 (which are byte, word, or quad). Specify the number of words in test packet payload (default is 512). The following example executed fPortTest 100 times on port 8 with payload pattern 0xaa55, pattern width 2 (meaning word width), and default payload size 512 bytes. Example: switchname:admin> fPortTest 100,8,0xaa55,2, 512 Will use pattern: aa55 aa55 aa55 aa55 aa55 aa55 ... Running fPortTest ........ port 8 test passed. value = 0 Check All Switch Components Between Main Board, SFP, and Fiber Cable The following procedure exercises all the switch components from the main board --> SFP --> fiber cable --> SFP on the device --> back to main board. 1. Make sure all connected cables and SFPs are of the same technology (that is a short wavelength SFP switch port should be connected to another short wavelength device SFP through a short wavelength cable). 2. Log into the switch as admin. 3. Determine which ports are L-Ports by entering the switchshow command. 4. Enable ports for loopback mode by entering loopporttest [--slot number] [-nframes count][-ports itemlist][-seed payload_pattern][-width pattern_width]. Refer to the HP StorageWorks Fabric OS Version 3.1.x/4.1.x Reference Guide for more information about the operands. 5. Create a frame F of data size (1024) bytes. 6. Transmit frame F via port M, with D_ID to the FL port (AL_PA = 0). 7. Pick up the frame from port M, the FL port. Fabric OS Procedures Version 3.1.x/4.1.x User Guide 223