RAID Information and Fault Description: Recently, I was provided with a set of 12 disk arrays using enterprise-grade Seagate ES.2 hard drives, model ST3100340NS. The client is a film and television production company that uses the server to store large video files. According to their report, three of the disks failed, causing the RAID array to crash. No unnecessary attempts were made to recover the data before contacting us. The operating system in use is Windows Server 2008. RAID Detection Process and Failure Analysis: The data recovery engineer from Darth first tested the three faulty hard drives and discovered that all of them had physical bad sectors, which significantly complicated the recovery process. RAID Data Recovery Process and Results: Initially, sector-level disk-to-disk mirroring was performed on the three failed drives. After that, the underlying data structure was carefully analyzed. Since the data mainly consisted of video files, there wasn't much text-based information available for reference, making the analysis more challenging. Through extensive searching and verification of valid data across different locations, the engineers managed to understand the unique RAID6 configuration used. Additionally, they encountered HP’s internal and external double-cycle technology, which further increased the complexity. Notably, the inner loop wasn’t based on the conventional left-side 16-strip structure but instead used a right-side 32-strip structure, creating a special double-loop layout as shown below. In response to this complex setup, the Darth engineers modified their existing software tools to match the specific characteristics of the array. After three days of intensive work, a total of 6.73TB of data was successfully recovered, achieving a full 100% recovery rate. Challenges in This Case: One of the main difficulties during the data structure analysis was the discovery of only a limited number of $MFT file records, which made it difficult to reconstruct the full RAID loop. This limitation added to the overall complexity of the recovery task. Advice to Customers: For users experiencing RAID failures, it's strongly advised not to attempt DIY recovery, especially if the data is critical. It's always best to consult a professional data recovery service to ensure the highest possible data integrity. Once the data is safely recovered, the RAID array can then be repaired to restore normal operation without risking further data loss. Overall, this case highlights the importance of working with experienced professionals when dealing with complex RAID configurations and critical data storage systems. front lace human wig bob,natural human hair wig bob,full human hair wigs bob Xu Chang Zhuo YunQing crafts Co., LTD , https://www.wowqueenhair.com