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Chapter 4. Operating the storage subsystem
This chapter describes operating procedures for the DS4700 Express.
To ensure optimal operation of your system, see “Best practices guidelines” on
page 5
Performing the DS4000 Health Check process
The DS4000 Health Check process is a sequence of suggested actions developed
by IBM to help users verify and maintain the optimal performance of their DS4000
storage configurations. The information that you collect in these steps also helps
provide IBM Service with important information needed for problem troubleshooting
during IBM Service calls.
Perform the following Health Check tasks after the initial configuration of your
DS4000 Storage Subsystem, and after all configuration sessions. It is also
recommended that you set a regular schedule of periodic Health Check evaluations
in order to keep your DS4000 code current and to preserve optimal data access
and performance.
1. Monitor the Recovery Guru in the Storage Manager client for any obvious
storage subsystem errors or problem conditions.
2. Gather and save the following DS4000 storage subsystem event logs for review
by IBM Service. These event logs should be gathered periodically for regular
Health Check monitoring regardless of the state of the Recovery Guru. (You can
collect all these logs at once and zip them into a single file by clicking
Advanced Troubleshooting Collect All Support Data in the DS4000
Storage Manager Subsystem Management window.)
v DS4000 storage subsystem management event log (MEL)
v Storage Subsystem Profile or DS4000 Profile
v Read-Link Status (RLS) data
In addition, you should also collect event logs for the host servers that have
mapped logical drives from the storage subsystem.
Attention: Save these event log files to a server disk that will remain
accessible in the event of a DS4000 storage configuration failure. Do not save
these event log files only to a LUN in the DS4000 Storage Subsystem.
3. Use the Storage Subsystem Profile or DS4000 Profile to verify that the following
firmware levels are at the latest versions supported for your DS4000 storage
subsystem:
v Controller firmware
v ESM firmware
v Drive firmware
If you discover your firmware is not up-to-date, upgrade the firmware and
software to the latest level appropriate to your DS4000 storage configuration.
See “Web pages” on page 118 for information about where to find the latest
firmware and software.
Attention: You must resolve Recovery Guru errors or problems before
upgrading firmware.
© Copyright IBM Corp. 2010 117