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Product Version: 89.13
Last Modified: 28 September 201825 May 2020

Problem

One or more recovery points in my backup repository is/Backup Repository are corrupted.

  • How could Why does the repository corruption happen?
  • What can I do to prevent corruption in the future?

Background

A recovery point can become corrupted if one or more data blocks related to this recovery point is/are invalid or missing.
This  This can happen due to the following reasons:

  • Powering down or rebooting the Transporter during space reclaim task
  • Storage issues (bad blocks, physical storage corruption)

  • OS issues - e.g. , for example, the OS may report that data was written while it is was not physically not written (delayed write, cache, etc.and so on)

  • If there are corrupted recovery points in a backup repository Backup Repository and you continue using it, the number of corruptions may increase.

If the If backup verification finds that a recovery point is corrupted, a red icon will be displayed over the affected backup in the backup repository Backup Repository details.
To view which recovery points are affected, please expand such the backup. Corrupted recovery points are marked with a yellow icon.
 If a recovery point is marked as corrupted, you still can try to recover files from it or run Performing Flash VM Boot Recovery.
NAKIVO Backup & Replication does not prohibit recovery from such recovery points, although successful recovery cannot be guaranteed.

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Since corrupted recovery points may affect new data or data from other backups/recovery points, we recommend to you do the following:

  • If the last recovery point is corrupted, run the job for the backup with the corrupted recovery point. The product will automatically rebuild NAKIVO Backup & Replication automatically rebuilds the last recovery point using the data from the source VM.
  • If the corrupted point is not the last one:
    1. Delete the corrupted recovery point.
    2. Verify backups in the backup repositoryBackup Repository.
    3. If one or more corrupted recovery points appear, repeat the above process.
Note
titleImportant

If your only recovery point for a VM is corrupted, you can’t delete it.

After removal of you remove the corrupted recovery points, backup verification will ensure other recovery points are good. We also recommend

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that you schedule backup verification so

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it

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runs periodically.

Note
iconfalse
titleNote

Maintenance tasks, such as space reclaimself-healing, or another backup verification session will clear the previous verification results.

In order to prevent corruptions in the future, we recommend the following:

  • Make sure that the Transporter assigned to the backup repository Backup Repository cannot be powered off or rebooted unexpectedly.
  • If possible, use a couple of smaller repositories rather than instead of a single large backup repositoryBackup Repository.
    This way you can keep them more manageable: space reclaim and repository verification will happen faster.
  • To avoid disrupting NAKIVO Backup & Replication processes and to avoid data corruption, add the application to the whitelist/exclusions list of the antivirus software running on the machine where on which the NAKIVO backup repository Backup Repository is set up.
SEO Metadata
composedTitleDealing with Corrupted Recovery Points

A recovery point can become corrupted if one or more data blocks related to this recovery point is/are invalid or missing. 

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