HP StorageWorks MSA 2.8 SAN Switch - Manual (Page 234)

Troubleshooting
234 Fabric OS Procedures Version 3.1.x/4.1.x User Guide
Marginal Links
A marginal link involves the connection between the switch and the edge device.
Isolating the exact cause of a marginal link involves analyzing and testing many of
the components that make up the link: switch port, switch SFP, cable, the edge
device, and the edge device SFP.
Confirming the Problem
The following steps provide a brief overview of possible steps to troubleshoot a
marginal link.
1. Enter the portErrShow command.
Example:
switch:admin> porterrshow
frames enc crc too too bad enc disc link loss loss frjt fbsy
tx rx in err shrt long eof out c3 fail sync
sig=====================================================================
0: 22 24 0 0 0 0 0 1.5m 0 7 3 0 0 0
1: 22 24 0 0 0 0 0 1.2m 0 7 3 0 0 0
2: 0 0 0 0 0 0 0 0 0 0 0 0 0 0
3: 0 0 0 0 0 0 0 0 0 0 0 0 0 0
4: 149m 99m 0 0 0 0 0 448 0 7 6 0 0 0
5: 149m 99m 0 0 0 0 0 395 0 7 6 0 0 0
6: 147m 99m 0 0 0 0 0 706 0 7 6 0 0 0
7: 150m 99m 0 0 0 0 0 160 0 7 5 0 0 0
8: 0 0 0 0 0 0 0 0 0 0 0 0 0 0
9: 0 0 0 0 0 0 0 0 0 0 0 0 0 0
10: 0 0 0 0 0 0 0 0 0 0 0 0 0 0
11: 0 0 0 0 0 0 0 0 0 0 0 2 0 0
12: 0 0 0 0 0 0 0 0 0 0 0 2 0 0
13: 0 0 0 0 0 0 0 0 0 0 0 2 0 0
14: 0 0 0 0 0 0 0 0 0 0 0 2 0 0
15: 0 0 0 0 0 0 0 0 0 0 0 0 0 0
32: 0 0 0 0 0 0 0 0 0 0 0 0 0 0
33: 0 0 0 0 0 0 0 0 0 0 0 0 0 0