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Improving RAID Performance and Reliability with Non-volatile Write Journals | Cypress Semiconductor

Improving RAID Performance and Reliability with Non-volatile Write Journals

Last Updated: 
Apr 12, 2010

When RAID was first introduced, the term was defined as “Redundant Array of Inexpensive Disks”. It has now become a blanket term for data storage schemes with better fault tolerance and input/output (I/O) performance than a single disk drive or ‘Just a Bunch Of Disks’ (JBOD). RAID commonly represents a system consisting of many storage disks that are accessed by servers through high speed communication channels. The I/O performance of disk drives has always been the major bottleneck for any system requiring access to huge amounts of storage and there were several efforts being made at that time to increase the throughput of disks through mechanical means. Such efforts, however, led to cost increases of these highdensity, high-speed disks, making them unaffordable for small businesses.  To read more, click the download link below or visit: RTC Magazine.