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24th IEEE Conference on Mass Storage Systems and Technologies (MSST 2007)
RAIF: Redundant Array of Independent Filesystems
San Diego, California, USA
September 24-September 27
ISBN: 0-7695-3025-7
ASCII Text
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Nikolai Joukov, Arun M. Krishnakumar, Chaitanya Patti, Abhishek Rai, Sunil Satnur, Avishay Traeger, Erez Zadok, "RAIF: Redundant Array of Independent Filesystems," Mass Storage Systems and Technologies, IEEE / NASA Goddard Conference on, pp. 199-214, 24th IEEE Conference on Mass Storage Systems and Technologies (MSST 2007), 2007.
 
 
BibTex
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@article{ 10.1109/MSST.2007.30,
author = {Nikolai Joukov and Arun M. Krishnakumar and Chaitanya Patti and Abhishek Rai and Sunil Satnur and Avishay Traeger and Erez Zadok},
title = {RAIF: Redundant Array of Independent Filesystems},
journal ={Mass Storage Systems and Technologies, IEEE / NASA Goddard Conference on},
volume = {0},
year = {2007},
isbn = {0-7695-3025-7},
pages = {199-214},
doi = {http://doi.ieeecomputersociety.org/10.1109/MSST.2007.30},
publisher = {IEEE Computer Society},
address = {Los Alamitos, CA, USA},
}
 
 
RefWorks Procite/RefMan/Endnote
x 
 
TY - CONF
JO - Mass Storage Systems and Technologies, IEEE / NASA Goddard Conference on
TI - RAIF: Redundant Array of Independent Filesystems
SN - 0-7695-3025-7
SP199
EP214
A1 - Nikolai Joukov,
A1 - Arun M. Krishnakumar,
A1 - Chaitanya Patti,
A1 - Abhishek Rai,
A1 - Sunil Satnur,
A1 - Avishay Traeger,
A1 - Erez Zadok,
PY - 2007
KW - null
VL - 0
JA - Mass Storage Systems and Technologies, IEEE / NASA Goddard Conference on
ER -
 
Nikolai Joukov, Stony Brook University, USA; IBM T.J. Watson Research Center, USA
Arun M. Krishnakumar, Stony Brook University, USA
Chaitanya Patti, Stony Brook University, USA
Abhishek Rai, Stony Brook University, USA
Sunil Satnur, Stony Brook University, USA
Avishay Traeger, Stony Brook University, USA
Erez Zadok, Stony Brook University, USA
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.

Citation:
Nikolai Joukov, Arun M. Krishnakumar, Chaitanya Patti, Abhishek Rai, Sunil Satnur, Avishay Traeger, Erez Zadok, "RAIF: Redundant Array of Independent Filesystems," msst, pp.199-214, 24th IEEE Conference on Mass Storage Systems and Technologies (MSST 2007), 2007
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