Acronis Cyber Protect: how to fix corrupted archives in network locations
Introduction
When backing up to NAS or a network folder using Version 12 backup format, the archive may become corrupted and operations with the archive will fail with "data is corrupted: CRC mismatch or internal data structures mismatch".
Such errors are usually caused by hardware problems or file system issues on the backup destination.
Starting from Acronis Cyber Protect Cloud C20.12 (Build 26077) and Acronis Cyber Protect 15 Update 2 (Build 27009), you can create a system variable that enables the system to scan for the last good state of backup archive and attempt to repair it. After the repair, the backup archive should be accessible again.
This solution only works for network locations.
Solution
Perform the following steps on the Agent machine that created the faulty backup:
- Press Win+R, type sysdm.cpl into the input field and press Ok.
- System properties window opens. Go to the Advanced tab and click on Environment variables
- In System variables section, click New
- Create a new variable with the following parameters:
- Variable name: ARCHIVE3_AUTO_REPAIR
- Variable value: 1
- Save changes and close System properties window
- In Protection Console, go to Backup Storage tab, select the archive that causes the error, and click Show backups. While accessing the backup, Agent will attempt to find the last good state and fix the archive.
Related Articles
Acronis Cyber Protect Self Installation
Received activation email but not sure what to do next? We are here to help. Please follow these steps. Step 1 – Activating and Accessing your Acronis Console Your activation email should look like this. Click on “Activate account”. Now you ...
Acronis Cyber Protect Cloud, Acronis Cyber Backup: Activity fails with Windows error: (0x80070570) The file or directory is corrupted and unreadable
Symptoms Activity (backup, validation, etc) fails with the following error: Windows error: (0x80070570) The file or directory is corrupted and unreadable HideExample of full error log: click to expand Error code: 2064 Module: 23 LineInfo: ...
Acronis Cyber Protect Cloud: Resumable Backup technology
Acronis Cyber Protect Cloud uses Resumable Backup technology which reduces network load and therefore enhances backup performance. Resumable Backup means that in case of a backup failure data upload will be resumed, i.e.: data, which was transferred ...
Acronis Cyber Protect Cloud - Implementation Guide
1. Which agent do I need? Selecting an agent depends on what you are going to back up. The table below summarizes the information, to help you decide. In Windows, Agent for Exchange, Agent for SQL, Agent for Active Directory, and Agent for Oracle ...
Acronis Cyber Protect, Acronis Cyber Backup: Installation of third-party Antivirus fails if Acronis Agent is installed
Symptoms Installation of third-party endpoint security software (e.g. BitDefender Endpoint Security) fails or hangs on the machine where Acronis Agent is installed, even when Acronis Cyber Backup license is used or Antivirus & Antimalware protection ...