Data Recovery services by My Data Recovery Lab provides full RAID data recovery services as our standard service. We offer diagnostic report of the recoverable data, allowing you to verify your data before you buy an actual recovery. Once the recovery is verified, you can use our customer service portal to view the status and progress of your recovery in real time.
RAID Recovery Services
With more than 10 years of data recovery experience, My Data Recovery Lab has the capacity and technical expertise required to solve complex and technically challenging RAID recoveries. My Data Recovery Lab use advanced data recovery tools and techniques to repair, recover and rebuild inaccessible data from all types of RAID systems and situations such as:
RAID 0
RAID 0 or block-level striping without parity (mirroring) provides improved performance and additional storage but no fault tolerance. Any drive failure destroys the array, and the likelihood of failure increases with more drives in the array.
RAID 1
RAID 1 or mirroring without parity (striping), writes data to two drives, producing a “mirrored set”. The read request is serviced by either of the two drives containing the requested data, whichever one involves least seek time plus rotational latency.
RAID 3
In RAID 3 or byte-level striping with dedicated parity synchronizes all disks spindle rotation and data is striped so each sequential byte is on a different drive. Parity is calculated across corresponding bytes and stored on a dedicated parity drive.
RAID 4
RAID 4 or block-level striping with dedicated parity is equivalent to RAID 5 except that all parity data is stored on a single drive. Primarily used by NetApp, but has now been replaced by an implementation of RAID 6.
RAID 5
RAID 5 or block-level striping with distributed parity distributes parity along with the data and requires that all drives but one be present to operate. The array is not destroyed by a single drive failure and requires at least three disks.
RAID 6
RAID 6 or block-level striping with double distributed parity provides fault tolerance up to two failed drives. This makes larger RAID groups more practical, especially for high-availability systems.
RAID 10
In RAID 10 or RAID 1+0 (mirroring and striping), data is written in stripes across primary disks that have been mirrored to the secondary disks.
RAID 5E, RAID 5EE
RAID 5E, RAID 5EE are variants of RAID 5 with an integrated hot-spare drive, where the spare drive is an active part of the block rotation scheme. This spreads I/O across all drives, including the spare, thus reducing the load on each drive, increasing performance.
RAID 6E
RAID 6E is an enhanced variant of RAID 6 with an integrated hot-spare drive, where the spare drive is an active part of the block rotation scheme, too. This spreads I/O across all drives, including the spare, thus reducing the load on each drive, increasing performance.
RAID 0+1 (RAID 01)
RAID 0+1 or RAID 01 ia a striped sets in a mirrored set. Requires minimum four drives and provides fault tolerance and improved performance but increases complexity.
RAID 5+0 (RAID 50)
Many said that RAID 50 should have been called “RAID 03” because it was implemented as a striped (RAID level 0) array whose segments were RAID 3 arrays. RAID 50 is more fault tolerant than RAID 5 but has twice the parity overhead. Ussualy a good solution RAID 5 is required but need some additional performance boost.
RAID 5+1 (RAID 51)
RAID 51 is created by mirroring entire RAID 5 arrays and is very similar to RAID 01. However it is based on RAID 5 configuration instead of RAID 0 and hence include parity protection. Performance for these arrays is good but not very high for the cost involved, nor relative to that of other multiple RAID levels.
RAID 1E
RAID 1E is an enchanced RAID 1 which uses 2-way mirroring on two or more drives.
Questions & Answers
Most data recovery labs successfully recovers data from all hard drive types including drives with: IDE/ATA/PATA/EIDE, ULTRA/ATA 100, SAS, SCSI, ESDI, Fibre Channel, USB, Firewire, PCMCIA, RLL, iSCSI, eSATA, SATA II/2.0, SATA and MFM connection types.
Never replace a failed drive with a drive that was part of a previous RAID system and always zero out the replacement drive before using. If a drive is making unusual noises, turn it off immediately and get assistance. Have a valid backup before making hardware or software changes. Label the drives with their position in a RAID array. Do not run volume repair or utilities on suspected bad drives! Do not run volume repair utilities in a power loss situation and if the file system looks suspicious, or is un-mountable!
RAID recovery requires experienced technical staff. When choosing a data recovery provider is highly important to ensure that the provider has the capacity to take on large and highly complex recovery jobs. Many data recovery providers do not have enough resources or expertise to handle a successful RAID recovery. Can you raid different hard drives types?
Useful RAID recommendations and tips?
How to choose a RAID recovery service provider?
