HP 3000 Enterprise Virtual Array - Manual (Page 176)

The mpx100/100b statistics
Statistics are available from the mpx100/100b for the Fibre Channel and iSCSI ports, and can be
displayed through the CLI or the mpx Manager GUI. See “
Show Stats command ” on page 168.
Troubleshooting LUN presentation from the EVA to the iSCSI
Initiator
This section describes basic troubleshooting when presenting a LUN from the EVA to the iSCSI Initiator.
In this process it is important to focus on the EVA port and the LUN because they must be presented
throughout the Fibre Channel and IP networks to the iSCSI Initiator.
Presenting an EVA LUN to an iSCSI Initiator is a two-step process in HP Command View:
1. Presenting the LUN to the iSCSI host entry. This communication presents the LUN from the EVA
FC ports to the mpx100/100b FC ports.
2. Presenting the LUN to the iSCSI Initiator. This communication presents the LUN from the
mpx100/100b Gigabit Ethernet ports to the iSCSI Initiator.
Troubleshooting EVA communication with the mpx100/100b
If there is a problem with HP Command View EVA communicating with the mpx100/100b or not
discovering LUNs, verify that:
• The mpx100/100b is powered on.
• The mpx100/100b management port is cabled to the IP network.
• The mpx100/100b management port IP address, subnet mask, and gateway are set properly.
• The HP Command View application server NIC IP address, subnet mask, and gateway are set
properly.
• The mpx100/100b management port is on the same IP network as the HP Command View EVA
application server.
• The iSCSI controller’s management port connection status is online in HP Command View EVA.
Troubleshooting EVA or LUN FC port connections
If the mpx100/100b does not see EVA ports or LUNs connected to the FC ports:
• Verify that the mpx100/100b is powered on.
• Verify that the Fibre Channel link light is green.
• If your configuration is fabric connect mode, check to see if the mpx100/100b FC ports are zoned
with the EVA FC ports.
• If your configuration is direct connect mode, check to see if EVA ports connected to the
mpx100/100b FC ports are set to direct connect.
• Verify that the EVA ports and LUNs are discovered and online to the mpx100/100b are using
the mpx Manager GUI or CLI.
• In HP Command View EVA , verify that the Vdisk is uses FC ports to present the Vdisk to the iSCSI
host entry.
Diagnostics and troubleshooting 176