Disk failures are very common in modern storage systems due to the large number of
inexpensive disks. As a result, it takes a long time to recover a failed disk due to its large …

In the recent scenario, capacity of the storage system increases significantly due to
increasing demands. Data availability is a major concern in the context of storage systems …

NAND based solid state storage devices are almost ubiquitously used in safety-critical
embedded devices, and recent advances have demonstrated RAID architectures specific to …

The computer hard drive market has diversified with the establishment of solid state disks
(SSDs) as an alternative to magnetic hard disks (HDDs). Each hard drive technology has its …

Flash-based storage systems offer high density, robustness, and reliability for embedded
applications; however the physical nature of flash memory means that there are limitations to …

RAID has been widely deployed in disk array storage systems to manage both performance
and reliability simultaneously. RAID conducts two performance-critical operations during …

Once a disk of storage system is failed, RAID mechanism will reconstruct to keep the
reliability. The reconstruction leads to a sharp deterioration in I/O performance of RAID, and …