Add to ORKGDeployment of SSDs in enterprise settings is limited by the low erase cycles available on commodity devices. Redun-dancy solutions such as RAID can potentially be used to pro-tect against the high Bit Error Rate (BER) of aging SSDs. Unfortunately, such solutions wear out redundant devices at similar rates, inducing correlated failures as arrays age in unison. We present Diff-RAID, a new RAID variant that distributes parity unevenly across SSDs to create age dispari-ties within arrays. By doing so, Diff-RAID balances the high BER of old SSDs against the low BER of young SSDs. Diff-RAID provides much greater reliability for SSDs compared to RAID-4 and RAID-5 for the same space overhead, and offers a trade-off curve between throughput and reli...
Today's computer systems entrust the bulk of their data to disk drives. This data must be reliably s...
Disk arrays were proposed in the 1980s as a way to use parallelism between multiple disks to improve...
RAID is a data storage virtualization technology that combines multiple disk drive components into a...
Deployment of SSDs in enterprise settings is limited by the low erase cycles available on commodity ...
Part 7: Session 7: Best Paper – 2International audienceDue to the limited erasure/program cycles of ...
While the move from SLC to MLC/TLC flash memory technology is increasing SSD capacity at lower cost,...
A serious problem with current SSDs is its low reliability due to their primary component, flash-mem...
The move from SLC to MLC/TLC flash memory technology is increasing SSD capacity at lower cost, but a...
Big data stores are becoming increasingly important in a variety of domains including scientific com...
Abstract — RAID has long been established as an effective way to provide highly reliable as well as ...
In this work we present a new data layout and associated scheduling policies to improve RAID reliabi...
When we use a disk, we sometimes wish it to be faster; I/O operations are slow and thus can be the b...
In this paper, we measure the I/O performance of five filesystems?EXT4, XFS, BTRFS, NILFS2, and F2FS...
RAID has long been established as an effective way to provide highly reliable disk subsystems. Howev...
Existing parity RAID is a redundancy code capable of correcting any single self-ide tifying failure....
Today's computer systems entrust the bulk of their data to disk drives. This data must be reliably s...
Disk arrays were proposed in the 1980s as a way to use parallelism between multiple disks to improve...
RAID is a data storage virtualization technology that combines multiple disk drive components into a...
Deployment of SSDs in enterprise settings is limited by the low erase cycles available on commodity ...
Part 7: Session 7: Best Paper – 2International audienceDue to the limited erasure/program cycles of ...
While the move from SLC to MLC/TLC flash memory technology is increasing SSD capacity at lower cost,...
A serious problem with current SSDs is its low reliability due to their primary component, flash-mem...
The move from SLC to MLC/TLC flash memory technology is increasing SSD capacity at lower cost, but a...
Big data stores are becoming increasingly important in a variety of domains including scientific com...
Abstract — RAID has long been established as an effective way to provide highly reliable as well as ...
In this work we present a new data layout and associated scheduling policies to improve RAID reliabi...
When we use a disk, we sometimes wish it to be faster; I/O operations are slow and thus can be the b...
In this paper, we measure the I/O performance of five filesystems?EXT4, XFS, BTRFS, NILFS2, and F2FS...
RAID has long been established as an effective way to provide highly reliable disk subsystems. Howev...
Existing parity RAID is a redundancy code capable of correcting any single self-ide tifying failure....
Today's computer systems entrust the bulk of their data to disk drives. This data must be reliably s...
Disk arrays were proposed in the 1980s as a way to use parallelism between multiple disks to improve...
RAID is a data storage virtualization technology that combines multiple disk drive components into a...