Benefits of a RAID 5 (Distributed Parity):
- RAID 5 implements a striped disk array wherein the data is broken down into ‘blocks’ and each ‘block’ is written to a separate disk drive.
- A parity block is written for each data 'stripe' for redundancy and recovery.
- Require a minimum of three drives to implement. Two drives are required for data recovery (in a three drive array).
RAID 5 implementations can vary making end user data recovery difficult. Such factors include:
- Drive order, parity order, parity size and length.
- The failure of two drives will result in all data in a (three drive) array being lost and therefore should never be used without proper backup techniques. Power surges are a common form of this type of failure.
Should you have a failed RAID 5 setup:
CBL Data Recovery will require all hard drives from the RAID 5 array to assess the severity of the crash and to develop a recovery solution. A proficient recovery evaluation will be presented to you the same day we receive the units.
