Latent sector errors (LSEs) refer to the situation where particular sectors on a drive become
inaccessible. LSEs are a critical factor in data reliability, since a single LSE can lead to data …

A number of techniques have been proposed to reduce the risk of data loss in hard-drives,
from redundant disks (eg, RAID systems) to error coding within individual drives. Disk …

The reliability measures in today's disk drive-based storage systems focus predominantly on
protecting against complete disk failures. Previous disk reliability studies have analyzed …

Though remarkably reliable, disk drives do fail occasionally. Most failures can be detected
immediately; moreover, such failures can be modeled and addressed using technologies …

This paper proposes the use of machine learning techniques to make storage systems more
reliable in the face of sector errors. Sector errors are partial drive failures, where individual …

Two schemes proposed to cope with unrecoverable or latent media errors and enhance the
reliability of RAID systems are examined. The first scheme is the established, widely used …

Modern storage systems orchestrate a group of disks to achieve their performance and
reliability goals. Even though such systems are designed to withstand the failure of …

Two schemes proposed to cope with unrecoverable or latent media errors and enhance the
reliability of RAID systems are examined. The first scheme is the established, widely used …

Over the last decade we have witnessed the relentless technological improvement in flash-
based solidstate drives (SSDs) and they have many advantages over hard disk drives …

We study storage performance in over 450,000 disks and 4,000 SSDs over 87 days for an
overall total of 857 million (disk) and 7 million (SSD) drive hours. We find that storage …