3DM 2 Online Help

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 Rebuild/Migrate Task Schedule

| Removing a Task Slot from a 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.

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