Data Integrity Check

Data Integrity Check is a feature in HBS 3 that analyzes your backups and attempts to repair any corrupted data. You can run data integrity checks manually, or configure scheduled checks when creating a backup job. HBS 3 offers two types of data integrity checks: quick check and content check.

Tip:

Data integrity checks require significant system resources and may take a long time to complete. For the best processing speed, QNAP recommends using an x86-based device with SSDs.

Feature		Quick Check	Content Check
Method		Compares the existence, size, modification time, and/or hash value of each file	NAS-to-NAS backup jobs where HBS 3 on the destination NAS supports data integrity checks: Compares the existence, size, modification time, and hash value of each file All other jobs: Downloads all files temporarily and calculates hash values for comparison Important: Some cloud service providers charge additional fees for download traffic.
Supported Jobs	Created in HBS 3 v16 or Later	All backup jobs except NAS-to-NAS jobs with QuDedup disabled	All backup jobs Note: For NAS-to-NAS jobs, if the destination NAS runs HBS 3 v15 or earlier, only jobs with QuDedup enabled are supported.
Supported Jobs	Created in HBS 3 v15 or Earlier	All backup jobs except NAS-to-NAS jobs with QuDedup disabled	None
Supported Cloud Destinations		HBS 3 currently supports all cloud destinations except the following: Amazon Glacier Amazon S3 Glacier Deep Archive Azure Archive Storage
Manual checks		Open HBS 3. Go to Backup & Restore. Select an existing backup job. Click Check Data Integrity. Click Quick Check.	Open HBS 3. Go to Backup & Restore. Select an existing backup job. Click Check Data Integrity. Click Content Check. Note: You must enable Content Check in the backup job configuration in order to run a content check. For details, see Creating a Backup Job.
Scheduled checks		For details on configuring quick check and content check schedules, see Creating a Backup Job.