Data Recovery: RAID Disk Arrays

Data Recovery from RAID Disk Arrays

Tip: Do you need urgent data recovery from a RAID disk array? Order our Express Data Recovery Service!

DATARECOVERY specializes on RAID arrays (redundant array of independent disks) – multiple independent hard drives – and disk array recovery. Thanks to our unique technologies and know-how we achieve 100% success rate in data recovery from RAID disk arrays in every single case and we are able to recover data from damaged RAID disk arrays without knowledge of the exact configuration and without the original controller!

Our experience is appreciated also by our customers abroad, where “their” companies specialized in data recovery were not able to help.

RAID Disk Array Levels

RAID 0 (stripe)

RAID 1 (mirror)

RAID 2 (ECC)

RAID 3, 4 (parity)

RAID 5, 5E, 5EE, 6 (distributed parity)

combined and derived (RAID 0+1, RAID 10, ...)

special and proprietary

And all RAID types:

hardware (controller performs all the functions)

pseudo-hardware (the controller functions only as the interface, all the computational functions are performed by software)

software (typically Linux, LVM, dynamic disks, among others)

Reasons for data loss on RAID Disk Arrays

The most common reasons for data inaccessibility on RAID disk arrays are:

the loss of configuration of the array

defective controller

one or more failed drives

partial overwriting

wrong parity calculation

incorrect array initialization

loss of relocation information

hard disk failure

How Data Recovery from a failed RAID Disk Array works

Required for a successful data recovery from a RAID Disk Array is that a sufficient number of its components, i.e. hard disk drives, is functional. If necessary, as the first step we will recover data from the failed hard drives the RAID Disk Array consists of.

The saved data can be recorded on:

the original array (if the controller and the disks are functional) or we replace the failed drives with new ones

a single hard disk (no redundancy)

or according to your preference

Data recovery from a failed RAID Disk Array can be performed in the following modes:

EXPRESS - the fastest data recovery in urgent cases

STANDARD - during working hours

ECONOMY - if speed is not important for you and you rather prefer low cost

In all cases we make so-called bit-by-bit copy of data. In the majority of cases it is possible to use the system after the recovery of data without reinstallation!

The many years of experience constantly prove our motto, which is especially true for disk arrays:

"We recover what others can't!“