HP 3PAR F-Class, T-Class, StoreServ 10000 Storage Troubleshooting Guide (QL226-96953, May 2013)

Port
Displays port connection issues.
• Checks for ports in unacceptable states
• Checks for mismatches in type and mode, such as hosts connected to initiator ports, or host
and Remote Copy over Fibre Channel (RCFC) ports configured on the same FC adapter
• Checks for degraded SFPs and those with low power; perform this check only if this FC Adapter
type uses SFPs
Format of Possible Port Exception Messages
Port port:<nsp> "Port mode is in <mode> state"
Port port:<nsp> "is offline"
Port port:<nsp> "Mismatched mode and type"
Port port:<nsp> "Port is <state>"
Port port:<nsp> "SFP is missing"
Port port:<nsp> SFP is <state>" (degraded or failed)
Port port:<nsp> "SFP is disabled"
Port port:<nsp> "Receiver Power Low: Check FC Cable"
Port port:<nsp> "Transmit Power Low: Check FC Cable"
Port port:<nsp> "SFP has TX fault"
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.
Port Example 1
Component ------Description------ Qty
Port Degraded or failed SFPs 1
Component -Identifier- --Description--
Port port:0:0:2 SFP is Degraded
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
Troubleshooting Storage System Components 119