Dell PowerVault MD3260i - Manual (Page 207)

• 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 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.
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