3DM 2 Online Help

Scheduling Background Tasks
You can set up scheduling windows for when background tasks occur so that routine maintenance of storage media occurs when it will be least likely to interfere with day-to-day work on the system (peak I/O times). By creating and using schedules, you can specify when active rebuilding, migrating, verifying, and testing of units should occur. For example, you might these tasks to occur at 2AM each day, or on weekends.
The initial schedule setting is to “Ignore Schedule.” This allows the controller firmware to automatically initiate background tasks.

| Note: Initialization follows the rebuild/migrate schedule.

Rebuild/migrate, verify, and self-test tasks are scheduled separately, but in a very similar way. You can perform the following scheduling 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

| Tip: If you want to change a task schedule window, you first remove the schedule item and then add it back with the desired day, time, and duration.

| Note: Setting up the scheduling window does not actually request background tasks. It simply specifies when they can run. For more information about the background tasks themselves, see Background Tasks.

You can also set the rate at which background tasks are performed compared to I/O tasks. For more information, see Setting Background Task Rate.
Scheduled Task Duration
If a rebuild completes within a scheduling window, it will not start over at the next scheduled time block, unless another rebuild is required.
If a rebuild does not complete in the scheduled time block, it will continue where it left off at the next scheduled time block.
Similarly, if a verify operation does not complete in the scheduled time block, it will continue where it left off at the next scheduled time block.

Related Topics
  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
  Background Task Prioritization

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