Brocade 7800 Extension Switch Hardware Reference Manual User Manual download pdf (Page 38)

Brocade 7800 maintenance

The Brocade 7800 are designed for high availability and low failure; it does not require any regular

physical maintenance. It includes diagnostic tests and field-replaceable units, described in the

following sections.

Diagnostic tests

In addition to POST, Fabric OS includes diagnostic tests to help you troubleshoot the hardware and

firmware. This includes tests of internal connections and circuitry, fixed media, and the transceivers

and cables in use. The tests are implemented by command, either through a Telnet session or through

a terminal set up for a serial connection to the Extension Switch. Some tests require the ports to be

connected by external cables, to allow diagnostics to verify the serializer/deserializer interface,

transceiver, and cable. Some tests require loop back plugs.

Diagnostic tests are run at link speeds of 1-Gbps, 2-Gbps, 4-Gbps, and 8-Gbps. For information about

specific diagnostic tests, see the Fabric OS Administrator's Guide.

NOTE

Diagnostic tests might temporarily lock the transmit and receive speed of the links during diagnostic

testing. Brocade recommends that you power-cycle the switch after completing offline diagnostics

tests.

Field replaceable units (FRUs)

You can replace the combined power supply/fan assemblies on site without the use of special tools.

The FRUs are keyed to ensure correct orientation during installation. Replacement instructions are

provided with all replacement units ordered.

DANGER

Remove both power cords before servicing.

DANGER

Disconnect the power cord from all power sources to completely remove power from the

device.

Power supplies/fan assemblies

The two FRUs are hot-swappable. They are identical and fit into either bay. They are keyed to prevent

being inserted upside down.

Fabric OS identifies the power supplies as follows (viewing the Brocade 7800 from the nonport side):

• Power supply #1 on the right

• Power supply #2 on the left

Fabric OS identifies the fan assemblies as follows (viewing the Brocade 7800 from the nonport side):

• Fan assembly #1 on the right

• Fan assembly #2 on the left

Brocade 7800 maintenance

38 Brocade 7800 Extension Switch Hardware Reference Manual

53-1001350-05

1 2 ... 33 34 35 36 37 38 39 40 41 42 43 ... 65 66

No comments

Brocade 7800 Extension Switch Hardware Reference Manual User Manual Page 38