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In large scale data centers, with the increasing amount of user data, Triple Disk Failure Tolerant arrays (3DFTs) gain much popularity due to their high reliability and low monetary cost. With the development of cloud computing, scalability becomes a challenging issue for disk arrays like 3DFTs. Although previous solutions improves the efficiency of RAID scaling, they suffer many problems (high I/O...
In this paper, a highly reliable radiation hardened by design memory cell (RHD12) using 12 transistors in a 65-nm CMOS commercial technology is proposed. Combining with layout-level design, the TCAD mixed-mode simulation results indicate that the RHD12 not only can fully tolerant the single-event upset occurring on any one of its single nodes but can also tolerant single-event multiple-node upsets...
Nowadays RAID is widely used due to its large capacity, high performance and high reliability. With the increasing requirement of reliability in storage systems and fast development of cloud computing, RAID-6, which can tolerate concurrent failures of any two disks, receives more attention than ever. However, the write performance of RAID-6 systems is a bottleneck to serve various applications. In...
With the rapid growth of data storage, the demand for high reliability becomes critical in large data centers where RAID-5 is widely used. However, the disk failure rate increases sharply after some usage, and thus concurrent disk failures are not rare, therefore RAID-5 is insufficient to provide high reliability. A solution is to convert an existing RAID-5 to a RAID-6 (a type of "RAID level...
With the rapid expansion of data storages and the increasing risk of data failures, triple Disk Failure Tolerant arrays (3DFTs) become popular and widely used. They achieve high fault tolerance via erasure codes. One class of erasure codes called Maximum Distance Separable (MDS) codes, which aims to offer data protection with minimal storage overhead, is a typical choice to enhance the reliability...
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