27 September 2004 to 1 October 2004
Interlaken, Switzerland
Europe/Zurich timezone

Multi-Terabyte EIDE Disk Arrays running Linux RAID5

29 Sep 2004, 10:00
1h
Coffee (Interlaken, Switzerland)

Coffee

Interlaken, Switzerland

Board: 52
poster Track 4 - Distributed Computing Services Poster Session 2

Speaker

D. Sanders (UNIVERSITY OF MISSISSIPPI)

Description

High-energy physics experiments are currently recording large amounts of data and in a few years will be recording prodigious quantities of data. New methods must be developed to handle this data and make analysis at universities possible. Grid Computing is one method; however, the data must be cached at the various Grid nodes. We examine some storage techniques that exploit recent developments in commodity hardware. Disk arrays using RAID level 5 (RAID5) include both parity and striping. The striping improves access speed. The parity protects data in the event of a single disk failure, but not in the case of multiple disk failures. We report on tests of dual-processor Linux Software RAID5 arrays and Hardware RAID5 arrays using the 12- disk 3ware controller, in conjunction with 300 GB disks, for use in offline high-energy physics data analysis. The price of IDE disks is now less than $1/GB. These RAID5 disk arrays can be scaled to sizes affordable to small institutions and used when fast random access at low cost is important.

Primary authors

D. Petravick (Fermilab) D. Sanders (UNIVERSITY OF MISSISSIPPI) D. Summers (UNIVERSITY OF MISSISSIPPI) L. Cremaldi (UNIVERSITY OF MISSISSIPPI) M.D. Joy (UNIVERSITY OF MISSISSIPPI) R. Godang (UNIVERSITY OF MISSISSIPPI) V. Eschenburg (UNIVERSITY OF MISSISSIPPI)

Presentation Materials