Data recovery for damaged disks in hospital "medical insurance system" using DELL Raid6
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Data recovery for damaged disks in hospital "medical insurance system" using DELL Raid6
Client Background: A hospital.
Disaster Scenario: A DELL R750 server, with a 300GB x 7 RAID 6 configuration, suffered three simultaneous hard drive failures, causing the hospital's medical insurance system service to become unavailable.
Recovery Challenges:
A RAID 6 disk array with three hard drives offline. The ESXi 7.0 hypervisor was running six virtual machines, one of which was the medical insurance server.
The server hosted the medical insurance system (Oracle database), requiring assurance of complete data integrity upon recovery.
Time was of the essence; the goal was to restore normal VM operation or extract the Oracle database in the shortest time possible.
Recovery Process:
Hard Drive Processing: All seven hard drives were cloned via imaging to protect the original data from damage. The three damaged drives were cloned using professional equipment.
Low-Level Analysis: Analyzed the low-level drive sectors to determine the RAID 6 parameters.
RAID Reconstruction: Simulated RAID recovery in a specialized repair environment to extract the virtual machine files (VMDKs).
Specialized Recovery: Booted and tested the extracted virtual machine files in a VMware test environment.
Integrity Verification: Verified the integrity by successfully booting the medical insurance virtual machine in the test environment.
Successful Outcome:
100% of the virtual machine files were recovered and booted directly in the test environment.
Successfully retrieved all lost virtual machine files.
Recovery time: 12 hours (expedited processing).
Ensured the hospital's medical insurance system remained operational for patient care.