Dell PowerVault MD 32XX/36XX Series Storage Arrays CLI Guide

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Diagnose RAID Controller Module

Description

This command runs diagnostic tests on the RAID controller module.

The testID parameter takes the following options, which you can use to verify that a RAID controller module is functioning correctly:

1 — Reads the test
2 — Performs a data loop-back test
3 — Writes the test

The diagnostic tests consist of loop-back tests in which data is written to physical disks and read from the physical disks.

Syntax

diagnose controller [(0 | 1)]
                                 loopbackPhysicalDiskChannel=(allchannels | (1 | 2))
                                 testID=(1 | 2 | 3)
                                 [patternFile=”
                                 filename”]

Parameters

Parameter	Description
`controller`	RAID controller module on which to run the diagnostic tests. Valid RAID controller module identifier values are `0` and `1`. The identifier value is `0` for the RAID controller module on the top and `1` for the RAID controller module on the bottom when viewed from the rear of the enclosure. You must put brackets ([ ]) around the RAID controller module identifier. If you do not specify a RAID controller module, the MD storage management software returns a syntax error.
`loopbackPhysicalDiskChannel`	Physical disk channel on which to run the diagnostic tests. You can choose to run the diagnostics on all channels or select a specific channel on which to run diagnostics. Valid physical disk channel values are `1` or `2`. NOTE: When you run a data loopback test, you can optionally specify a file that contains a data pattern. If you do not specify a file, the firmware provides a default pattern.
`testID`	Identifier for the diagnostic test to run. The identifier and corresponding tests are: 1 — Reads the test 2 — Write test 3 — Data loop-back test NOTE: When you run a data loop-back test, you can optionally specify a file that contains a data pattern. If you do not specify a file, the RAID controller module firmware provides a default pattern.
`patternFile`	File path and file name of the file that contains a data pattern to use as test data. Enclose the path and file name with quotation marks (" ").