SNC 5100

Diagnostic Command Reference

This section specifies the procedures used when diagnostics are required.

Boot Modes

The SNC 5100 has two modes of operation: normal mode and diagmode. Two commands are available from the service terminal to reboot the SNC 5100 to the desired mode. The SNC 5100 remains in the existing mode until it has been directed to reboot in the other mode.

When the SNC 5100 is booted in diagmode, the command prompt displayed on the service terminal is diagmode >. While in diagmode, a limited command set is available for testing the SNC 5100 interfaces. In addition, the device drivers for the Ethernet, Fibre Channel, and SCSI interfaces are disabled so loop back tests can be performed on them.

Entering Diagnostic Mode

Use the diagBoot command when the special features of the SNC 5100’s diagnostic module are required.

Follow this procedure to enter diagnostic mode.

Step 1. Stop all I/O.

Caution

Before entering diagmode, you must disconnect all SCSI and FC cables from the SNC 5100. If you do not, the data on the attached tape devices will become corrupted.

Step 2. Shut down the SNC 5100.

Step 3. Remove the Ethernet cable, if installed.

Step 4. Connect the terminal to the Service Port.

Step 5. Turn on the SNC 5100 and wait for it to finish booting.

Step 6. If the command prompt displayed on the service terminal is diagmode > , proceed with the appropriate diagnostic tests.

Boot Modes

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ADIC SNC 5100, Scalar 1000 manual Boot Modes, Entering Diagnostic Mode