Hitachi Ultrastar 12TB Enterprise HDD Recovery in Chandigarh

By Published On: September 2nd, 20251.9 min read
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Case Overview :

An 8-year-old Hitachi Ultrastar 12TB enterprise drive failed in Chandigarh while part of a RAID5 pool supporting 9.9TB of SQL backups, CRM data, and VM images across Sector 17, Industrial Area Phase I, and Mohali IT Park. The disk dropped from the array during a rebuild, pushing the pool to critical. Administrators needed recovery that protected parity and server integrity. Hitachi Ultrastar 12TB Enterprise HDD Recovery in Chandigarh started with RAID-aware procedures and No Data No Charge assurance.

  • Brand: Hitachi Ultrastar
  • Capacity: 12TB
  • Data Size: 9.9TB
  • Success Rate: 100%

Problem Description

The array had shown sporadic read timeouts for weeks. During an attempted rebuild, the member disk entered click-spin cycles and disappeared. Further rebuild attempts risked parity mismatches across the surviving members. With SQL jobs failing and VMs offline, IT operations faced SLA exposure. Any DIY cloning without head stabilization would likely corrupt block sequencing and ruin array viability.

Understanding the Challenge

Enterprise Ultrastars under RAID are sensitive to head and firmware drift. Recovery requires donor head replacement, firmware calibration, and strictly sector-consistent imaging with head map tuning. Only then can a safe virtual RAID be assembled to extract partitions. Skip-heavy imaging or hot rebuilds in this state propagate corruption and erase clean restore options.

Data Recovery

We installed matched donor heads in a clean-room and calibrated firmware modules for stable access. Imaging cloned stable bands then re-tuned for marginal tracks, logging block health. A virtual RAID5 was assembled using cloned members, verifying stripe order and parity. Data extraction prioritized SQL backups, CRM datasets, and VM images. Integrity checks validated mounts and database openings before full export.

Outcome of Data Retrieval

All server data was restored—SQL dumps opened, CRM datasets verified, and VMs booted in test harness. Sector 17 and Mohali teams resumed services with minimal reconfiguration. A preventive plan—hot spare integration, staged drive refresh, and proactive SMART monitoring—reduced future risk across Industrial Area offices.

Conclusion:
RAID crises can be reversed with precision. Hitachi Ultrastar 12TB Enterprise HDD Recovery in Chandigarh proved donor+firmware stabilization and parity-aware imaging restore full server estates safely.

Call To Action

If a RAID member fails in Chandigarh, Sector 17, or Mohali IT Park, stop rebuilds and call DataCare Labs for enterprise RAID recovery under the No Data No Charge Policy.

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