The raw disk i/o performance of compaq storage works RAID arrays under tru64 unix

[摘要] We report on the raw disk i/o performance of a set of Compaq StorageWorks RAID arrays connected to our cluster of Compaq ES40 computers via Fibre Channel. The best cumulative peak sustained data rate is l17MB/s per node for reads and 77MB/s per node for writes. This value occurs for a configuration in which a node has two Fibre Channel interfaces to a switch, which in turn has two connections to each of two Compaq StorageWorks RAID arrays. Each RAID array has two HSG80 RAID controllers controlling (together) two 5+p RAID chains. A 10% more space efficient arrangement using a single 1l+p RAID chain in place of the two 5+P chains is 25% slower for reads and 40% slower for writes.

[发布日期] 2000-10-19 [发布机构] Lawrence Livermore National Laboratory

[关键词] Computers;Configuration;Storage;Performance;99 General And Miscellaneous//Mathematics, Computing, And Information Science