Chapter 7. Advanced maintenance, troubleshooting, and diagnostics 401
View all events Detailed information about all events logged
by the controller. Sometimes this is useful
when determining a time line of configuration
changes or looking for marginal errors.
The MEL viewer also has a check box option called View details. When selected, this
expands the window into two panes. The bottom pane will display additional data bytes
associated with the event highlighted in the top pane. This information is also contained within
the Collect all Support Data file, which might be required by the IBM Support representative
during problem analysis.
7.7.6 Collect All Support Data option
Use the Collect All Support Data option to gather various types of inventory, status, and
performance data that can help troubleshoot any problems with your storage subsystem. All
of the files gathered are compressed into a single archive in a zipped-file format. Then, you
can forward the archive file to an IBM Support representative for troubleshooting and further
analysis. In most cases, this provides sufficient detail to help a hardware defect investigation,
although sometimes switch logs, host logs, or cabling diagrams might also be required.
The data gathered in the Collect all Support Data bundle includes:
The storage subsystem profile
Major Event Log (MEL) information
Read Link Status (RLS) data
Nonvolatile static random access memory (NVSRAM) data
Current problems and the associated Recovery Guru procedures
Performance statistics for the entire storage subsystem
Persistent registration and persistent reservation information
Detailed information about the current status of the storage subsystem
Disk drive diagnostic data
A recovery profile for the storage subsystem
Unreadable sectors detected on the storage subsystem
Controller state capture data
ESM state capture data
The switch-on-a-chip (SOC) statistics
Drive-side cabling connection summary
Automatic support data collection
Storage Manager incorporates an option to enable automatic support data collection. When
enabled, a support data file is collected and transferred to a specified directory whenever a
critical event occurs within a 72 hour period. This allows all information relevant for
troubleshooting by your support representative to be preserved.
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