The following sections provide information
about testing your iSCSI ports using the Command Line Interface (CLI). For
additional information on the CLI see Using the CLI.
The connection test is used to verify the Ethernet ports functionality. Connect an Ethernet cable (straight through) from ETH2[A] to ETH3[A]. If you are accessing the CLI via the serial port you can also connect ETH0[A] to the other ports.
If another controller is present, repeat the test.
Syntax
diag
connection <from> <to>
'from' and 'to' are the interfaces (i.e.
eth0, eth2, eth3) and must be specified. The same interface may be used as
'from' and 'to'.
The test either reports success or a message indicating the nature
of the failure.
DS300# diag connection eth3 eth2
Connection test from eth3 to eth2 test succeeded
In a dual
controller enclosure, you can test the Ethernet ports from one controller to
the other. Plug a cable from ETH2[A] to ETH2[B]. From the CLI do the following (example below):
DS300[A]# diag ping
191.1.9.5 count 5 interface eth3[A]
Pinging 3[A] using interface
eth3[A] SUCCEEDED
Pinging 3[A] using interface
eth3[A] SUCCEEDED
Pinging 3[A] using interface
eth3[A] SUCCEEDED
Pinging 3[A] using interface
eth3[A] SUCCEEDED
Pinging 3[A] using interface
eth3[A] SUCCEEDED
Important: If VLANs are not
set up or ports are directly attached to the NIC or iSCSI
HBA card, all controller ports will respond to a ping to either port on either
controller even though the subnet is different. It is recommended that switches
be used rather than direct attaching the Hosts to the iSCSI
ports.