ScrubTasksSCALE.md

title	description	weight	aliases	tags
Managing Scrub Tasks	Provides instruction on running scrub and resilver tasks.	10	/scale/scaleuireference/dataprotection/scrubtasksscreensscale/	scrub resilver

When TrueNAS performs a scrub, ZFS scans the data on a pool. Scrubs identify data integrity problems, detect silent data corruptions caused by transient hardware issues, and provide early disk failure alerts.

Default Scrub Tasks

TrueNAS generates a default scrub task when you create a new pool and sets it to run every Sunday at 12:00 AM.

Adjusting Scrub/Resilver Priority

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Creating New Scrub Tasks

TrueNAS needs at least one data [pool]({{< relref "/SCALE/SCALEUIReference/Storage/_index.md" >}}) to create scrub task.

To create a scrub task for a pool, go to Data Protection and click ADD in the Scrub Tasks window.

Select a preset schedule from the dropdown list or click Custom to create a new schedule for when to run a scrub task. Custom opens the Advanced Scheduler window.

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To view the progress of a scrub task, check the status under the Next Run column.

Editing Scrub Tasks

To edit a scrub, go to Data Protection and click the scrub task to edit.