Data Recovery from a Corrupted, Unusable NAKIVO Backup in Toulouse, France

A NAKIVO Backup That Could No Longer Be Restored
An SME based in Toulouse, France, contacted us through our website www.recoveo.com after a restore attempt failed on a NAKIVO backup that had become unusable. The client was no longer able to restore the backup. The initial assumption was that the backup file had become corrupted.

Transfer of the Corrupted Backup via FTP
From the initial contact, our specialist team carried out a complete assessment of the situation with the client. During this stage, the Toulouse-based company informed us that the affected backup was a NAKIVO backup in .raw format, with a total size of approximately 2.1 TB. To facilitate the transfer of the backup, our team created a unique FTP link allowing the client to send us the entire NAKIVO backup. The client also provided us with the name of the affected file: 9d0bac52-7f15-4dd2-8115-e8fd7768ca10.raw

Error Message When Opening the Backup
After successfully receiving the NAKIVO backup, one of our RECOVEO engineers first attempted to open and restore it using the conventional method. The software displayed an error message confirming that the backup could no longer be restored using standard recovery methods.

Technical Analysis and Data Reconstruction
The case was then assigned to our R&D engineering team to determine the exact nature of the issue. Initial checks revealed that some of the data blocks were unreadable. More specifically, approximately 21% of the analyzed segments contained incomplete structures & data blocks. Based on this mapping, our R&D team was initially able to isolate the readable blocks. A second discussion was then held with the client to share the initial findings and identify ways to improve the overall data recovery success rate. Following this discussion, the client provided us with an additional data source to supplement the analysis: a production virtual machine, which was also corrupted. After cross-analyzing the different available sources and using specialized equipment, our R&D engineering team confirmed the following results to the client:

Result: 100% of the priority files were successfully recovered and validated.
Initial volume analyzed: 2.1 TB Recoverable data volume: 1.9 TB, representing an overall recovery rate of 90% of the total volume.

Delivery and Validation
To facilitate data validation, the client was provided with secure access to our DiagView platform, allowing them to review the recovered files, verify their contents, and validate the priority data before approving the final delivery. Following client validation, the recovered data was copied onto an external hard drive and securely delivered within 48 hours, allowing the client to quickly and confidently resume business operations.