Background Tasks
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Background Tasks
Background tasks are maintenance tasks that help maintain the integrity of
your drives and data. These tasks include
• Initialization of units
• Verification of units
• Rebuilds when units have become degraded
• Migration of an on-line RAID from one RAID configuration to another
• Self-tests
You can set up your system so that these tasks occur as they are needed, or
you can create schedules so that they occur during non-peak times.
Background tasks can have an effect on performance, so using a schedule can
minimize the impact.
This section includes the following topics related to background tasks:
• About Initialization
• About Verification
• Starting a Verify Manually
• Rebuilding Units
• Cancelling a Rebuild and Restarting It with a Different Drive
• Setting Background Task Rate
• Background Task Prioritization
• Scheduling Background Tasks
• Viewing Current Task Schedules
• Turning On or Off Use of a Task Schedule
• Removing a Task Schedule
• Adding a New Task Schedule Slot
• Selecting Self-tests to be Performed
Although the migration of a unit is handled as a background task, initiating it
is similar to creating a new unit. For details, see “Changing An Existing
Configuration by Migrating” on page 120.
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