3PAR InForm® OS 2.3.1 Messages and Operator's Guide (320-200181 Rev B, February 2010)

11.28
Troubleshooting InServ Storage Server Components
Messages and Operator’s Guide InForm OS Version 2.3.1
Port port:<nsp> "There is less than one week of LESB history for this port"
Port port: "Port or devices attached to port have experienced CRC errors within
____________the last day"
Port port: "CRC errors have been increasing by more than one per day over the
____________past week"
11.4.9.2 Port Suggested Actions, General
Some specific examples are displayed below, but in general, use the following CLI commands
to check for these conditions:
■ For port SFP errors, use commands such as showport, showport -sfp, showport -sfp
-ddm
, showcage, showcage -sfp, and showcage -sfp -ddm.
■ For port CRC and Link Error Status Block (LESB) errors, use commands such as
showportlesb single, showportlesb hist, or
showportlesb hist -start|-t <time>.
11.4.9.3 Port Example 1
Component ------Description------ Qty
Port Degraded or failed SFPs 1
Component -Identifier- --Description--
Port port:0:0:2 SFP is Degraded
11.4.9.4 Port Suggested Action 1
An SFP in a Node-Port is reporting a degraded condition. This is most often caused by the SFP
receiver circuit detecting a low signal level (RX Power Low), and that is usually caused by a
poor or contaminated FC connection, such as a cable. An alert should identify the condition,
such as the following:
Port 0:0:2, SFP Degraded (Receiver Power Low: Check FC Cable)
Check SFP statistics using CLI commands such as
showport -sfp, showport -sfp -ddm,
showcage, etc.
cli% showport -sfp
N:S:P -State-- -Manufacturer- MaxSpeed(Gbps) TXDisable TXFault RXLoss DDM
0:0:1 OK FINISAR_CORP. 2.1 No No No Yes
0:0:2 Degraded FINISAR_CORP. 2.1 No No No Yes
In the following example an RX power level of 361 microwatts (uW) for Port 0:0:1 DDM is a
good reading; and 98 uW for Port 0:0:2’s is a weak reading ( < 100 uW). Normal RX power level
readings are 200-400 uW.
cli% showport -sfp -ddm