ISCSI Port Tests

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.

 

Crossport connection test

 

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.

Example:

 

DS300# diag connection eth3 eth2

Connection test from eth3 to eth2 test succeeded

 

Cross-controller port connection test

 

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.

 

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