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Data Recovery and Techniques


In this presentation, we explained about what is data recovery and its techniques. – PowerPoint PPT presentation

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Title: Data Recovery and Techniques

Data Recovery and Techniques
Data Recovery
  • Data recovery is a process of salvaging
    inaccessible data from damaged or corrupted
    secondary storage , when the data store cannot be
    accessed in a normal way.
  • The data is most often salvaged from storage
    media such as internal or external hard disk
    drives (HDDs), USB flash drives , solid-state
    drives (SSDs), magnetic tapes, CDs, DVDs, and
    other electronic devices.

Physical Damage
  • A variety of failures can cause the physical
    damage to the storage media. The failures may be
    the result from human error or natural disasters.
  • For example hard disk may suffer mechanical
    failures such as head crashes.
  • Physical damage always cause atleast some data

Recovery Techniques
  • Recovery process involves multiple techniques
  • Some damage can be repaired by replacing part in
    the hard disk but logical damage may occur.
  • A specialized disk-imaging procedure is used to
    recover every readable bit from the surface.

Logical Damage
  • In logical damage situation, error is not a
    problem in hardware but It requires software
    level solutions.
  • The logical errors are Corrupt partitions and
    file systems, media errors and overwritten data.

Remote Data Recovery
  • Data recovery experts always do not need to have
    physical access to the damaged hardware. They can
    use the software techniques to recover data.
  • They can perform the recovery using remote
    access software over the internet.

Phases of data recovery
  • There are four phases in data recovery
  • Phase 1 Repair the hard disk drive
  • Phase 2 Image the drive to a new drive or a
    disk image file
  • Phase 3 Logical recovery of files, partition,
    MBR and MFT
  • Phase 4 Repair damaged files that were

Thank You
  • Presented by
  • Chiji data recovery in chennai
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    drive data recovery with affordable cost.