Silicon Graphics InfiniteStorage 4000 Series, Настройка и обслуживание

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Chapter 11: Maintaining a Storage Array 193
Collecting Drive
Data
To gather information about all of the drives in a storage array, use the
save
allDrives
command. This command collects sense data and saves the data to a
file. The sense data consists of statistical information that is maintained by each of the
drives in the storage array.
Diagnosing a
Controller
The
diagnose controller
command provides these tests that help you make
sure that a controller is functioning correctly:

The read test

The write test

The data-loopback test
The read test initiates a read command as it would be sent over an I/O data path. The
read test compares data with a known, specific data pattern, and the read test checks
for data integrity and errors. If the read command is unsuccessful or the data
compared is not correct, the controller is considered to be in error and is placed
offline.
Storage array profile A list of all components and properties of a storage array.
storage-array-profile.txt
Controller trace buffer DQ Trace buffer of each controller.
trace-buffers.7z
Environmental services module
(ESM) state capture
A detailed description of the current state of the ESMs in a
storage array.
tray-component-state-capture.7z
Unreadable sectors A detailed list of all of the unreadable sectors that have
been logged to the storage array.
badBlocksData.txt
Cumulative statistics bundles A detailed list of bundles of drive-related and
volume-related statistical data.
cumulative-statistics-bundles.7z
Manifest file A table listing the files that are included in the archive file
and collection status of each of those files.
manifest.xml
X-header data file AutoSupport message header that consists of plain text
key-value pairs that include information about the storage
array and message type.
x-header-data.txt
Type of Data Description and File Name