Running diagnostic tests

About the tests

The Diagnostic Monitor enables you to run tests of all components in the system or to select individual components for testing.

Tests that are labeled [Xtnd] often require you to install a set of appropriate loopback plugs on the tested component before you start the test and will indicate failures without these plugs.

Caution: Do not run [Xtnd] mode diagnostics on network adapter cards with live network connections. Disconnect all network connections prior to running network diagnostics in [Xtnd] mode. Running with attached networks can adversely affect other attached devices. Type xtnd n to cancel Extended test mode.

Items that are labeled [Factory], [Mfg], or the like, are accessible only to manufacturing personnel with special password privileges.

Running diagnostics on a Multipath High Availability nodes:

If you are running Stress diagnostics or tests 41, 42, 73 or option 4 of test 81 of the FC-AL diagnostics on a node in a Multi Path High Availability cabled pair of nodes, verify that one of the following is true:

The partner node is at the CFE or Loader boot prompt.
The partner node is powered off.
The multipath high availability cabling for both nodes has been removed such that the appliance is only responsible for its own storage and not that of its partner.

Running diagnostics on a N3700 (model number 2863-A20) series

A N3700 (model number 2863-A20) is a N3700 with two system modules. If you are running diagnostics on system module B for example, you will see the following system message and question if you select specific tests or options that test the FC-AL interface or the disks:

Diagnostics is currently running on Module B.

If Module A, the partner system, is running Data 
ONTAP or Diagnostics, then FCAL external loopback 
and disk tests may report nonexistent failures.

To run all FCAL tests on this system, you must 
power cycle the shelf and leave Module A at the 
CFE prompt.

NOTE: FCAL external loopback and disk tests will 
automatically be skipped if you answer "yes" to 
the following question.

Is Module A currently running Data ONTAP or 
Diagnostics (yes/no)?

This question is only asked once per diagnostic session and the system will recognize the response for all tests and options run during that session. If the answer is yes, then only a limited set of FC-AL tests or options are available for running. If the answer is no, then all tests and options are available for running.

For detailed information

The following sections describe how to run and interpret either type of test: