TY - GEN
T1 - RAIF
T2 - 24th IEEE Conference on Mass Storage Systems and Technologies, MSST 2007
AU - Joukov, Nikolai
AU - Krishnakumar, Arun M.
AU - Patti, Chaitanya
AU - Rai, Abhishek
AU - Satnur, Sunil
AU - Traeger, Avishay
AU - Zadok, Erez
PY - 2007
Y1 - 2007
N2 - Storage virtualization and data management are well known problems for individual users as well as large organizations. Existing storage-virtualization systems either do not support a complete set of possible storage types, do not provide flexible data-placement policies, or do not support per-file conversion (e.g., encryption). This results in suboptimal utilization of resources, inconvenience, low reliability, and poor performance. We have designed a stackable file system called Redundant Array of Independent Filesystems (RAIF). It combines the data survivability and performance benefits of traditional RAID with the flexibility of composition and ease of development of stackable file systems. RAIF can be mounted on top of directories and thus on top of any combination of network, distributed, disk-based, and memory-based file systems. Individual files can be replicated, striped, or stored with erasure-correction coding on any subset of the underlying file systems. RAIF has similar performance to RAID. In configurations with parity, RAIF's write performance is better than the performance of driver-level and even entry-level hardware RAID systems. This is because RAIF has better control over the data and parity caching.
AB - Storage virtualization and data management are well known problems for individual users as well as large organizations. Existing storage-virtualization systems either do not support a complete set of possible storage types, do not provide flexible data-placement policies, or do not support per-file conversion (e.g., encryption). This results in suboptimal utilization of resources, inconvenience, low reliability, and poor performance. We have designed a stackable file system called Redundant Array of Independent Filesystems (RAIF). It combines the data survivability and performance benefits of traditional RAID with the flexibility of composition and ease of development of stackable file systems. RAIF can be mounted on top of directories and thus on top of any combination of network, distributed, disk-based, and memory-based file systems. Individual files can be replicated, striped, or stored with erasure-correction coding on any subset of the underlying file systems. RAIF has similar performance to RAID. In configurations with parity, RAIF's write performance is better than the performance of driver-level and even entry-level hardware RAID systems. This is because RAIF has better control over the data and parity caching.
UR - https://www.scopus.com/pages/publications/47249126412
U2 - 10.1109/MSST.2007.4367974
DO - 10.1109/MSST.2007.4367974
M3 - Conference contribution
SN - 0769530257
SN - 9780769530253
T3 - Proceedings - 24th IEEE Conference on Mass Storage Systems and Technologies, MSST 2007
SP - 199
EP - 212
BT - Proceedings - 24th IEEE Conference on Mass Storage Systems and Technologies, MSST 2007
Y2 - 24 September 2007 through 27 September 2007
ER -