Data Clinic - Data Recovery Services
  • Email
  • Facebook
  • Twitter
Call Us Free: 0800 151 2207
  • Data Recovery Home
  • Data Recovery Services
    • Hard Drive Recovery
    • External & USB Drives
    • RAID / Server Recovery
    • NAS
    • SSD
      • SanDisk SSD Data Recovery
      • Lenovo SSD Data Recovery
    • SD Cards
    • Mobile Phones & Tablets
      • >How The Process Works
      • Android Data Recovery
      • iPhone Data Recovery
      • Samsung Data Recovery
      • Sony Xperia Data Recovery
      • Nokia / Windows Data Recovery
      • Water Damaged Phones
    • CCTV & DVR
    • Macs
    • Windows Computers
    • Lost & Deleted Files
    • Advanced Forensic Data Recovery (ADR) Services
    • Password Recovery
    • Forensic Investigation
    • Encrypted Volumes
      • Bitlocker
      • Check Point Endpoint
    • Bitcoin, Crypto & NFT Wallet Recovery
    • Tape Recovery
    • Tape eDiscovery & Conversion
    • Advanced Recovery Service
    • Spare Parts & Donor Drives
    • Disk Manufacturers
      • Seagate Hard Drive Data Recovery
      • Western Digital Hard Drive Data Recovery
      • Toshiba Hard Drive Data Recovery
    • SCSI Data Recovery
    • SQL Recovery
    • How Do Hard Drives Fail ?
  • Locations
    • Belfast
    • Birmingham
    • Bristol
    • Edinburgh
    • Glasgow
    • Leeds
    • Leicester
    • Liverpool
    • London – Central
    • London – City
    • Manchester
    • Newcastle
    • Northampton
    • Sheffield
    • Southampton
  • Help & Advice
  • News
  • About Us / Contact

Recovering Data from RAID 6 Server Arrays

There are two distinct types of RAID 6 architecture: RAID6 P+Q and RAID6 DP.

RAID 6 representationDP, or Double Parity raid uses a mathematical method to generate two independent parity bits for each block of data, and several mathematical methods are used. P+Q generates a horizontal P parity block, then combines those disks into a second vertical RAID stripe and generates a Q parity, hence P+Q. One way to visualise this is to picture three standard four disk RAID5 arrays then take a fourth array and stripe again to construct a second set of raid arrays that consist of one disk from each of the first three arrays, plus a fourth disk from the fourth array. The consequence is that those sixteen disks will only contain nine disks worth of data.

P+Q architectures tend to perform better than DP architectures and are more flexible in the number of disks that can be in each RAID array. DP architectures usually insist that the number of disks is prime, something like 4+1, 6+1 or 10+1. This can be a problem as the physical disks usually come in units of eight, and so do not easily fit a prime number scheme.

RAID 6, although far less frequently used than RAID 5, accounts for a significant number of server setups. RAID 6 systems that we’ve recovered data from include Dell PowerEdge / PowerVault, HP Proliant, XServe and SuperMicro systems. In addition to a free collection service that ships your damaged RAID to us, we offer a UK call out service where we repair your RAID & recover your critical data onsite.

RAID 6 Failures

Specific failures on RAID 6 systems that we can recover data from include:

Raid 6 server

  • RAID array / Controller Card Failure
  • Controller Card Set-up Corruption
  • RAID Container Crash
  • Server won”t boot
  • Server registry configuration lost
  • Rebuild failure
  • Damaged striping
  • Multiple hard disk drive failure (or multiple drives go offline)
  • Intermittent drive failure resulting in configuration corruption
  • RAID array or volumes that won”t mount after a server crash
  • Configuration damage or corruption
  • Addition of incompatible drives
  • Hardware conflicts
  • Software corruption
  • Software or operating system upgrades

Data Clinic’s RAID Recovery Service

With 15 year’s worth of RAID expertise, we know a thing or two about RAID 6 recoveries. In fact, two of the most high profile recoveries we’ve done to date were RAID 6 systems: one was for the Williams F1 team over a Grand Prix weekend, and the other we can’t talk about due to non-disclosure.

Our RAID Team operate countrywide and we can provide either onsite or offsite emergency services if required. Call us now on 0871 977 2525 or use the contact form to your right and we’ll call you.

Contact Data Clinic

Nationwide
Recovery Centers


Learn More

Free Advice
and Consultation


Learn More

Proven
Success Rate


Learn More

LONDON
68 Lombard Street
EC3V 9LJ
Tel: 0207 111 0964

New London House
EC3R 7LP
Tel: 0207 111 0964

BELFAST
The Mount, Belfast BT6 8DD
Tel: 0282 024 7021

BIRMINGHAM
11 St Pauls Square, Birmingham B3 1RB
Tel: 0121 629 0436

BRISTOL
Castlemead, Bristol BS1 3AG
Tel: 0117 322 6585

EDINBURGH
St Andrews Square, Edinburgh EH2 2AF
Tel: 0131 242 0037

GLASGOW
Tay House, 300 Bath Street, Glasgow, G2 4JR
Tel: 0141 301 1677

LEEDS
Building 3, City West Business Park, Gelderd Road, Leeds, LS12 6LN
Tel: 0113 254 9741

LEICESTER
3rd Floor, St. George's House, 6 St George's Way, Leicester LE1 1QZ
Tel: 0116 319 0115

LIVERPOOL
Horton House, Exchange Street East, Liverpool, L2 3PF
Tel: 0151 268 5255

MANCHESTER
The Pavilions, Bridge Hall Lane, Bury, BL9 7NX
Tel: 0161 761 0620

NEWCASTLE
116 Quayside, Newcastle, NE1 3DY
Tel: 0191 447 1227

NORTHAMPTON
400 Pavilion Drive, Northampton, NN4 7PA
Tel: 01604 529356

SHEFFIELD
The Balance, 2 Pinfold Street, Sheffield, S1 2GU
Tel: 0114 208 6027

SOUTHAMPTON
Basepoint, Andersons Road, Southampton SO14 5FE
Tel: 0114 208 6027


(c) 2020 Data Clinic Ltd - Data Recovery Services. Click to visit Data Clinic's DATA RECOVERY homepage.