In general, the DR Series system enters the Maintenance mode whenever the file system has encountered an issue that prevents it from operating normally.
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NOTE: You can use the Reason code information available in the Maintenance mode to contact Technical Support. All maintenance must be conducted using the DR Series systems Command Line Interface. |
When in its Maintenance mode, the filesystem is in a read-only state, and the system runs the following maintenance-based operations:
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NOTE: Whenever the DR Series systems enters or exits from the Maintenance mode state, all communication via protocols is lost. |
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Generates a filesystem status report (if the filesystem check finds no issues, the DR Series system switches back to Operational mode without user intervention). |
If the filesystem check finds issues, you can choose to make repairs (using Confirm Repair Filesystem) or ignore the detected issue (using Skip Repair Filesystem), at which point the system switches back to Operational mode.
The Maintenance mode process displays a number of stages, indicated on the Maintenance Mode progress bar, which include:
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NOTE: If the Filesystem Check detects any repairable files, it generates a Repair Report that identifies these reported files. The Maintenance Mode progress bar halts at the Completed Generating Repair stage, and remains in Maintenance mode until you click Confirm Repair Filesystem. The DR Series system does not advance to the Switching to Operation Mode stage until the filesystem repair is completed. |
The Maintenance Mode page provides the following information:
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Displays the five stages of Maintenance mode |
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Provides a search capability that allows you to click prev or next to display the previous or next page in the Repair Report, or lets you display a specific page number of the Repair Report by entering this number in the Goto page and click go. |
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After the DR Series system enters Maintenance mode, there can only be two possible outcome states:
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Operational mode (Normal State): where the filesystem check was successful, and no system files need to be repaired (Filesystem Check: successful). |
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Maintenance mode has halted: where the filesystem check detected one or more repairable files (Filesystem Check: unsuccessful). |
Filesystem Check — Successful: when the Maintenance mode successfully completes all of its stages, the DR Series system displays its status as having entered Operational mode (Normal State). Only after the Maintenance mode has successfully completed its internal check can it return to an Operational mode.
To return to the Operational mode, 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 indicates that all stages have been completed.
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NOTE: When in Maintenance mode, image expiration fails because the DR Series system is in a read-only state. If this occurs, the DMA assumes that the backup images have expired. However, the DR Series system administrator may be unaware that the backup data images still reside on the DR Series system. |
Filesystem Check — Unsuccessful: when the Maintenance mode halts at the Completed Generating Report stage, this indicates that the filesystem check detected some repairable files, and listed them in the Repair Report pane on the Maintenance Mode page.
To return to the Operational mode, click Confirm Repair Filesystem on the Maintenance Mode page options bar to repair the files listed in the Repair Report. Confirm Repair Filesystem is the only active option you can select when the progress bar indicates that some filesystem files are in need of repair.
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