A case for redundant arrays of inexpensive disks (RAID)
SIGMOD '88 Proceedings of the 1988 ACM SIGMOD international conference on Management of data
The design and implementation of a log-structured file system
ACM Transactions on Computer Systems (TOCS)
Parity logging overcoming the small write problem in redundant disk arrays
ISCA '93 Proceedings of the 20th annual international symposium on computer architecture
Inside Windows NT
Bridging the Information Gap in Storage Protocol Stacks
ATEC '02 Proceedings of the General Track of the annual conference on USENIX Annual Technical Conference
Proceedings of the FREENIX Track: 2001 USENIX Annual Technical Conference
Atropos: A Disk Array Volume Manager for Orchestrated Use of Disks
FAST '04 Proceedings of the 3rd USENIX Conference on File and Storage Technologies
Semantically-smart disk systems: past, present, and future
ACM SIGMETRICS Performance Evaluation Review - Design, implementation, and performance of storage systems
Generalized file system dependencies
Proceedings of twenty-first ACM SIGOPS symposium on Operating systems principles
A nine year study of file system and storage benchmarking
ACM Transactions on Storage (TOS)
WorkOut: I/O workload outsourcing for boosting RAID reconstruction performance
FAST '09 Proccedings of the 7th conference on File and storage technologies
Proceedings of the eleventh international joint conference on Measurement and modeling of computer systems
HotStorage'10 Proceedings of the 2nd USENIX conference on Hot topics in storage and file systems
LogStore: toward energy-proportional storage servers
Proceedings of the 2012 ACM/IEEE international symposium on Low power electronics and design
Journal remap-based FTL for journaling file system with flash memory
HPCC'07 Proceedings of the Third international conference on High Performance Computing and Communications
*-Box: towards reliability and consistency in dropbox-like file synchronization services
HotStorage'13 Proceedings of the 5th USENIX conference on Hot Topics in Storage and File Systems
Analysis of HDFS under HBase: a facebook messages case study
FAST'14 Proceedings of the 12th USENIX conference on File and Storage Technologies
| Hi-index | 0.00 |
We investigate the problem of slow, scan-based, software RAID resynchronization that restores consistency after a system crash. Instead of augmenting the RAID layer to quicken the process, we leverage the functionality present in a journaling file system. We analyze Linux ext3 and introduce a new mode of operation, declared mode, that guarantees to provide a record of all outstanding writes in case of a crash. To utilize this information, we augment the software RAID interface with a verify read request, which repairs the redundant information for a block. The combination of these features allows us to provide fast, journal-guided resynchronization. We evaluate the effect of journal-guided resynchronization and find that it provides improved software RAID reliability and availability after a crash, while suffering little performance loss during normal operation.