HP StorageWorks MSA 2.8 SAN Switch - Manual (Page 218)

Troubleshooting
218 Fabric OS Procedures Version 3.1.x/4.1.x User Guide
Identifying Media-Related Issues
Use the following section to narrow down media-related issues in the fabric.
Component Tests Overview
Hardware diagnostics available on switches can be classified into two different
types of tests:
■ Structural tests - do basic tests of the switch circuit. When structural tests fail,
replace the main board.
■ Functional tests - verify the intended operational behavior of the switch by
running frames through ports or bypass circuitry.
Table 17: Component Test Descriptions
Test Name Operands Checks
crossporttest [-nframes count ]
[-lb_mode mode ][-spd_mode mode ]
[-gbic_mode mode ] [-norestore mode ]
[-ports itemlist ]
Functional test of port external transmit
and receive path.
The crossport is set to loopback using
an external cable by default. However,
this command can be used to check
internal components by setting the lb
operand to 5.
fporttest [-nframes count ] [-ports itemlist ]
[-seed payload_pattern ]
[-width pattern_width ] [-size pattern_size ]
Tests component to/from HBA.
Used to test online F_Port devices,
N_Port devices and SFPs/GBICs.
loopporttest [-nframes count ]
[-ports itemlist ][-seed payload_pattern ]
[-width pattern_width ]
Only tests components attached to
switch that are on a FC arbitrated loop.
spinfab [ nMillionFrames [, ePortBeg [, ePortEnd [,
setFail ]]]]
Tests components to/from a neighbor
switch, such as ISLs and SFPs/GBICs
between switches.