HP 3PAR StoreServ 7000 Storage Troubleshooting Guide

PD Suggested Action 6
Check the release notes for mandatory updates and patches. Install updates and patches to HP
3PAR OS as needed to support the PD in the cage.
Port
Checks for the following port connection issues:
• Ports in unacceptable states
• 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
• 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
Some specific examples are displayed below, but in general, use the following CLI commands to
check for port SPF errors: 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 usually caused by a cable with
poor or contaminated FC connection. An alert can identify the following condition:
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.
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 47