EMC Storage XFS File System RAID5 Data Recovery Darth Technology

Media Information: A RAID 5 configuration consisting of four hard drives, model ST2000DM001.

Fault Type: RAID failure, resulting in the inability to read or write data.

Troubleshooting Process:

The engineer conducted a thorough examination of each individual hard drive and discovered that the storage system was running an EMC XFS file system. This particular setup used 520-byte sectors, with 8 bytes allocated for parity information, which is different from the standard 512-byte sector size commonly found in most systems. After analyzing the structure, it was determined that the issue stemmed from the loss of RAID metadata, which prevented the array from functioning properly.

Data Recovery Process:

To ensure maximum data integrity, the first step was to create a bit-by-bit image of each hard drive. These images were then processed using Darth Data Recovery software, which converted the 520-byte sectors into a 512-byte format suitable for reconstruction. By analyzing the block size and determining the correct disk order, the RAID array was successfully reconstructed, and all data was recovered without any loss.

Data Recovery Results:

The recovery process was 100% successful, and all critical data was restored to its original state.

Advice to Customers:

If your RAID array becomes damaged, it's crucial not to attempt any repairs or modifications on your own, as this could lead to further data loss. In case of accidental damage, it's best to seek professional help immediately. Taking the right steps at the right time can prevent unnecessary financial and operational losses for your company.

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It's also recommended to regularly back up important data and maintain proper monitoring of your storage systems to detect potential issues early. In the event of a RAID failure, quick action and expert assistance are key to minimizing downtime and ensuring business continuity.

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