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.

Sector Corruption

An important consideration in the analysis of data reliability is the occurrence of Sector Corruption or unrecoverable read errors. Unrecoverable read errors occur once in every 10 to the 14 bits, and thus are a common occurrence – every 30 minutes in a 100 drive RAID array. If a RAID system is rebuilding after drive failures, and encounters an unrecoverable read error on one of the remaining working disks, the effect of the Sector Corruption may prevent the reconstruction from completing at all. And, even if the reconstruction does complete, a Sector Corruption will result in multiple sectors of data loss. All drives being reconstructed will lose a corresponding sector.

Big Parity supports a much larger parity drive count than RAID6, 127 parity drives for Big Parity vs. 2 parity drives for RAID6. When important data is being stored, these additional parity drives can protect you from a whole family of problems in addition to Sector Corruption. For example, even if  multiple drives also fail, Silent Data Corruption occurs, or inevitable service delays or errors create more corruptions, additional parity drives are guaranteed to eliminate the problem and keep your original data intact and available.

Without Big Parity you are playing Russian roulette with your precious data hoping you don't incur data loss. Hope is not a strategy. After a while, the odds are going to catch up with you. They always do.

Contact us now to get more information on how your organization can take advantage of Big Parity to protect your data from Sector Corruption. Join the discussion on our Forum page and tell us about your real world story about storage reliability.