About The Dr4000 Support Mode - Dell DR4000 Administrator's Manual

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When the Maintenance mode has successfully completed all of its stages, the
DR4000 system displays this status. Only after the Maintenance mode has
completed its internal check can it return to an Operational mode.
To do this, click Go to Dashboard on the Maintenance Mode page options
bar. Go to Dashboard is only active when all of the internal system checks
have completed and the progress bar displays a "green" status.
NOTE:
You may encounter issues when using data management agents (DMAs)
like NetBackup with expired backup images when the DR4000 system is in its
Maintenance mode.
When in Maintenance mode, image expiration will fail because the DR4000 system
is in a read-only state. In this case, the DMA assumes that the backup images have
expired. However, the DR4000 administrator may be unaware that the backup data
images still reside on the DR4000 system.

About the DR4000 Support Mode

Generally, the DR4000 system enters its Support mode only because of the
following reasons:
• The filesystem has encountered an issue that could not be resolved by
running the internal Maintenance mode.
• Some system processes failed to start properly.
• The system detected an unsupported configuration.
The Support mode puts the DR4000 system into a state in which only the
following tasks can be performed:
• Generate a system diagnostics file. For more information, see
"Generating a Diagnostics Log File" on page 75.
• Upgrade the system software. For more information, see "Upgrading the
DR4000 System Software" on page 77.
• Contact Dell Support for assistance. For more information, see
"Contacting Dell" on page 128.
NOTE:
Dell recommends that you generate a DR4000 system diagnostics file
whenever the DR4000 system is in Maintenance or Support modes if one was
not automatically generated.
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Troubleshooting and Maintenance