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Implementation of a Fault-Tolerant Real-Time Network-Attached Storage Device

9 years 4 months ago
Implementation of a Fault-Tolerant Real-Time Network-Attached Storage Device
Phoenix is a fault-tolerantreal-time network-attachedstorage device (NASD). Like other NASD architectures, Phoenix provides an object-based interface to data stored on network-attached disks. In addition, it features many functionalities not available in other NASDs. Phoenix supports both best-effort reads/writes and real-time disk read accesses required to support real-time multimedia applications. A standard cyclebased scan-order disk scheduling algorithm is used to provide guaranteed disk I/O performance. Phoenix ensures data availability through a RAID5-like parity mechanism, and supports service availability by maintaining the same level of quality of service (QoS) in event of single disk failures. Given a spare disk, Phoenix automatically reconstructs the failed disk data onto the spare disk while servicing on-going real-time clients without degradation in service quality. Phoenix speeds up this reconstruction process by dynamically maintaining additional redundancy beyond the R...
Ashish Raniwala, Srikant Sharma, Anindya Neogi, Tz
Added 01 Aug 2010
Updated 01 Aug 2010
Type Conference
Year 2000
Where MSS
Authors Ashish Raniwala, Srikant Sharma, Anindya Neogi, Tzi-cker Chiueh
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