Coventry Data Recovery – No.1 Windows RAID 1 Recovery Specialists

Professional RAID 1 Data Recovery for Dell PowerEdge Servers

With over 25 years of data recovery expertise, Coventry Data Recovery specialises in advanced RAID 1 recovery services for Dell PowerEdge systems. We understand the critical impact of degraded RAID 1 arrays, especially when performance drops due to bad sectors or failing drives. Our experienced RAID recovery engineers restore access to mission-critical data quickly and securely.

Issue: Slow RAID 1 Performance – Bad Sectors Causing Degraded Access

RAID 1 systems are designed for redundancy, but when one or both drives develop bad sectors, performance can drastically deteriorate. This often results in:

  • Slow file access or system boot times
  • Repeated I/O retries from the RAID controller
  • Event log entries showing sector reallocation or read errors
  • Windows freezing or timing out on file operations

If left unresolved, data may become fully inaccessible or the RAID can enter a degraded state with increased risk of total data loss.

Recovery Process: Step-by-Step Technical Procedure

Step 1: Drive Evaluation and Imaging

  • Both mirrored drives are individually removed from the server and write-blocked.
  • We perform SMART diagnostics to detect bad sector counts, reallocated blocks, and pending sectors.
  • The drive with fewer physical defects is imaged first using a hardware disk imager capable of handling unstable sectors (e.g., DeepSpar DDI).
  • For sectors that are unreadable, we perform multiple-pass imaging with ECC-based error-handling algorithms.

Step 2: Logical Array Reconstruction

  • Using metadata from the RAID controller or manual analysis, we reconstruct the RAID 1 array virtually.
  • We match and validate metadata, timestamps, and partition layouts between both disk images to ensure logical consistency.

Step 3: File System Integrity Check

  • Once the virtual RAID is assembled, we perform a detailed scan of the file system (NTFS, exFAT, ReFS etc.).
  • Partition corruption, MFT errors, or volume bitmap issues are resolved using read-only forensic tools to avoid further damage.

Step 4: Targeted Data Recovery

  • All intact data is extracted to a secure storage medium.
  • In cases of partial sector damage, file carving techniques are used to recover documents, images, and databases based on signature patterns.

Step 5: Verification and Handover

  • We generate file trees and compare CRC hashes (if requested) to verify data integrity.
  • All recovered files are transferred to a new, verified backup device and securely returned to the client.

Supported Dell PowerEdge Server Models

We recover RAID 1 data from all major PowerEdge generations and models including:

  • Dell PowerEdge R740, R730, R620, R520
  • Dell PowerEdge T330, T630
  • Dell PowerEdge R220, T110 II, T310
  • Dell PowerEdge R810, R910, R510
  • Dell Precision servers using software RAID 1

Supported Interfaces and File Systems

Supported RAID 1 Interfaces:

  • SATA (Serial ATA)
  • SAS (Serial Attached SCSI)
  • NVMe (for newer RAID-integrated M.2 configurations)

File Systems We Recover:

  • NTFS
  • ReFS (Resilient File System)
  • FAT32/exFAT
  • Linux EXT3/EXT4 (dual-boot environments)

Why Choose Coventry Data Recovery?

✅ 25 Years RAID Expertise – Trusted by enterprises and IT professionals
✅ No Fix, No Fee – You only pay if we successfully recover your data
✅ In-House Cleanroom Lab – Safe physical handling for failed drives
✅ Support for Damaged and Rebuilt Arrays – Even if one disk was previously replaced
✅ Advanced Hardware Tools – DeepSpar, Atola Insight, PC-3000 for deep analysis and recovery

Book Your Free RAID Diagnostic

If your RAID 1 system is running slowly or experiencing access delays due to bad sectors, do not attempt further rebuilds or OS repairs. These actions can reduce the chance of successful recovery.

Contact Coventry Data Recovery today for expert diagnosis and full recovery from RAID 1 degradation.