HP StorageWorks 2000 Modular Smart Array Reference Guide (481599-003, August 2008)

208 HP StorageWorks 2000 Family Modular Smart Array reference guide • August 2008
Isolating External Data Path Faults on an FC
Storage System
To troubleshoot external data path faults, perform the following steps:
1. Select Monitor > Status > Advanced Settings > Host Port Status.
This page provides a graphical representation of controller host port status and port
details.
2. Review the graphical representation of host port status.
■ Green – Host link is up
■ Red – Host link is down
■ White – Port is unused and does not contain an SFP
An indication of link down can be caused by one or more of the following
conditions:
■ A faulty HBA in the host
■ A faulty Fibre Channel cable
■ A faulty SFP
■ A faulty port in the host interface module
■ A disconnected cable
3. To target the cause of the link failure, view the host port details by clicking on a
port in the graphical view and then reviewing the details listed below it.
The data displayed includes:
■ Host Port Status Details – Selected controller and port number.
■ SFP Detect – SFP is present or not present. An SFP is used to connect the FC
host port through an FC cable to another FC device.
■ Receive Signal – Signal is present or not present.
■ Link Status – Link is up (active) or down (inactive).
■ Signal Detect – Signal is detected or no signal.
■ Topology – One of the following values:
■ Point-to-Point
■ Loop, if the loop is inactive
■ Private Loop, if the port is directly attached to a host
■ Public Loop, if the port is attached to a switch
■ Speed – 2 Gbit/sec or 4 Gbit/sec.
■ FC Address – 24-bit FC address, or Unavailable if the FC link is not active.
■ Node WWN – Controller module node World Wide Name.
■ Port WWN – Port World Wide Name.