KB5000: How to run a Data Integrity Check for backup data stored in backup destination?

To perform a data integrity check, open the CloudBacko user interface:

1. Open the CloudBacko user interface, select the Utilities tile.

2. Select the corresponding backup set from the dropdown menu and then select the backup destination from the dropdown menu

3. Enable the Run Cyclic Redundancy Check (CRC) during data integrity check option to check on integrity of the files against the checksum file generated at the time of the backup job.

4. Enable the Rebuild index option to rebuild possible malfunction index in the backup destination.

5. Then press the Start button to start the data integrity check.

Note:

i. A data integrity check can only be performed when there is no manual / scheduled backup job in progress (of the corresponding backup set). It is highly recommended to temporarily disable the backup schedule to ensure that no scheduled backup is started while the data integrity check is still running.

The following error message will be displayed to indicate that the data integrity check had skipped a backup set with active backup job:

Skipped Backup Set="Backup Set". Reason = "Backup Job "Backup Set" is still running."
Finished data integrity check with error on backup set "Backup Set (Backup Set ID)

ii. The time required to complete a Data Integrity Check depends on a number of factors, such as the number of files/folders in the backup set(s), the bandwidth available on the client computer, hardware specifications of the client computer such as the disk I/O and CPU performance, and if there are other resource intensive job running.

iii. If the CRC (Cycle Redundancy Check) option is enabled, backup data will be streamed from the backup destination (e.g. the cloud storage location or FTP location for example), to the client computer in order to perform the CRC check. This may incur additional charges from your Cloud Storage provider. For users with metered internet connection, this could result in additional charges by your ISP (Internet Service Provider).

iv. During a data integrity check, pay attention to the resource usage on the client computer.

v. For backup destinations on cloud storage services, such as Amazon S3, data integrity checks are expected to be performed by the cloud storage service provider. (reference: https://aws.amazon.com/s3/faq)