Erasure coding in windows azure storage
Windows Azure Storage (WAS) is a cloud storage system that provides customers the ability
to store seemingly limitless amounts of data for any duration of time. WAS customers have …
to store seemingly limitless amounts of data for any duration of time. WAS customers have …
[PDF][PDF] Rethinking erasure codes for cloud file systems: minimizing I/O for recovery and degraded reads.
To reduce storage overhead, cloud file systems are transitioning from replication to erasure
codes. This process has revealed new dimensions on which to evaluate the performance of …
codes. This process has revealed new dimensions on which to evaluate the performance of …
A nine year study of file system and storage benchmarking
Benchmarking is critical when evaluating performance, but is especially difficult for file and
storage systems. Complex interactions between I/O devices, caches, kernel daemons, and …
storage systems. Complex interactions between I/O devices, caches, kernel daemons, and …
Optimal recovery of single disk failure in RDP code storage systems
L Xiang, Y Xu, JCS Lui, Q Chang - ACM SIGMETRICS Performance …, 2010 - dl.acm.org
Modern storage systems use thousands of inexpensive disks to meet the storage
requirement of applications. To enhance the data availability, some form of redundancy is …
requirement of applications. To enhance the data availability, some form of redundancy is …
[PDF][PDF] Reducing SSD read latency via NAND flash program and erase suspension.
In NAND flash memory, once a page program or block erase (P/E) command is issued to a
NAND flash chip, the subsequent read requests have to wait until the timeconsuming P/E …
NAND flash chip, the subsequent read requests have to wait until the timeconsuming P/E …
HPDA: A hybrid parity-based disk array for enhanced performance and reliability
Flash-based Solid State Drive (SSD) has been productively shipped and deployed in large
scale storage systems. However, a single flash-based SSD cannot satisfy the capacity …
scale storage systems. However, a single flash-based SSD cannot satisfy the capacity …
[PDF][PDF] WorkOut: I/O Workload Outsourcing for Boosting RAID Reconstruction Performance.
User I/O intensity can significantly impact the performance of on-line RAID reconstruction
due to contention for the shared disk bandwidth. Based on this observation, this paper …
due to contention for the shared disk bandwidth. Based on this observation, this paper …
[PDF][PDF] In Search of {I/O-Optimal} Recovery from Disk Failures
We address the problem of minimizing the I/O needed to recover from disk failures in
erasure-coded storage systems. The principal result is an algorithm that finds the optimal I/O …
erasure-coded storage systems. The principal result is an algorithm that finds the optimal I/O …
H-Code: A hybrid MDS array code to optimize partial stripe writes in RAID-6
RAID-6 is widely used to tolerate concurrent failures of any two disks to provide a higher
level of reliability with the support of erasure codes. Among many implementations, one …
level of reliability with the support of erasure codes. Among many implementations, one …
Higher reliability redundant disk arrays: Organization, operation, and coding
A Thomasian, M Blaum - ACM Transactions on Storage (TOS), 2009 - dl.acm.org
Parity is a popular form of data protection in redundant arrays of inexpensive/independent
disks (RAID). RAID5 dedicates one out of N disks to parity to mask single disk failures, that …
disks (RAID). RAID5 dedicates one out of N disks to parity to mask single disk failures, that …