Marginal Links; Confirming The Problem - HP StorageWorks MSA 2/8 - SAN Switch User Manual
Hp storageworks fabric os procedures v3.1.x/4.1.x user guide (aa-rs23c-te, june 2003)
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Also See for StorageWorks MSA 2/8 - SAN Switch:
- Reference manual (982 pages) ,
- User manual (267 pages) ,
- Installation manual (72 pages)
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Troubleshooting
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
tx
rx
sig=====================================================================
0:
22
24
1:
22
24
2:
0
0
3:
0
0
4:
149m
99m
5:
149m
99m
6:
147m
99m
7:
150m
99m
8:
0
0
9:
0
0
10:
0
0
11:
0
0
12:
0
0
13:
0
0
14:
0
0
15:
0
0
32:
0
0
33:
0
0
234
enc
crc
too
too
in
err shrt long
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
bad
enc disc link loss loss frjt fbsy
eof
out
c3 fail sync
0
0
1.5m
0
0
0
1.2m
0
0
0
0
0
0
0
0
0
0
0
448
0
0
0
395
0
0
0
706
0
0
0
160
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Fabric OS Procedures Version 3.1.x/4.1.x User Guide
7
3
0
0
7
3
0
0
0
0
0
0
0
0
0
0
7
6
0
0
7
6
0
0
7
6
0
0
7
5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
0
0
0
2
0
0
0
2
0
0
0
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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Table of Contents
Troubleshooting
