Big Parity® from StreamScale leads the industry in RAID reliability and processing speed, eliminating data loss and corruption due to disk failure, service errors, silent data corruption, and unrecoverable read errors. 30X faster than competitive RAID systems, Big Parity is the only product that provides advanced Verified Erasure Coding® which enable up to 127 parity drives to keep data safe and accurate during long data analysis cycles or rebuilds.

About Big Parity

StreamScale has been studying, implementing, licensing and supporting Erasure Coding systems since 2007. Whatever you need to know about Erasure Coding, we have the answer. For example, Unverified Erasure Codes, like RAID6, are amplifiers of Silent Data Corruption. This means when reconstructing data with an Unverified Erasure Code, Silent Data Corruption errors will become permanent, uncorrectable and undetectable - Silent Data Corruption Amplification. Once this occurs you can never trust your data again to be correct. There is no way to know what data is good and what data is corrupt. Big Data analytical runs and HPC applications can no longer produce repeatable and accurate results.

At StreamScale we understand the history, technology, and mathematics of Erasure Coding in particular using Reed Solomon codes, as well as codes based on Vandermonde and Lagrange matrixes. Traditional Erasure Coding systems do not detect errors, they simply correct Erasures based on pre-existing information regarding which drives are "erased". The original thinking about Erasure codes was that disk drive "channels" had no "noise". In fact, they do have noise – this “noise” is called Silent Data Corruption, and it is very real and well documented. Unverified Erasure Coding systems amplify this noise when reconstructing data after a drive failure in a process we call Silent Data Corruption Amplification. With no error detection mechanism, they see this corrupt data as correct, allowing the corruption to be propagated throughout the array, mirrors, and backup and disaster recovery system.

At StreamScale we recognized this flaw in architecting RAID systems and have developed Verified Erasure Coding® which inserts a new and novel "detect" stage into the Erasure coding engine. This extends the ability of Verified Erasure Coding® to correct many more types of errors than standard erasure codes.

By using Big Parity Verified Erasure Coding® to perform Verified Reconstruction it will both detect and correct Silent Data Corruption during reconstruction. The data in a RAID storage system with Big Parity can now be completely trusted.

Big Parity doesn’t stop at eliminating Silent Data Corruption Amplification. It is also designed to be backward compatible with existing RAID architectures, expand the number of parity drives to up to 127, providing 10 orders of magnitude more reliability, performance that can be 30 times faster than existing systems, and enables the fast and reliable construction of large RAID disk arrays necessary for Big Data, HPC, and Cloud Computing.

Contact StreamScale now to add Big Parity to your RAID system.