On Sun, 16 Jul 2006, A. Liemen wrote:
Hardware Raid.
http://www.areca.com.tw/products/html/pcix-sata.htm
If you want to see even worse performance with bonnie, try running several
parallel in sync, somewhere around 6-15 simultaneous read sessions[*]
should give you rather horrible performance numbers.
That said, synthetic benchmarks isn't everything. Check if it is an issue
with realistic load too. In some cases there can be quite a difference.
/Mattias Wadenstein
[*] Exact numbers may vary, for me it was as low as 6 on a 12-disk raid6
where the throughput dropped from ~300M/s to ~30M/s, but smaller raidsets
had a breakoff point up close to 8-10 reading procseses.
Jeff Breidenbach schrieb:
Controller: Areca ARC 1160 PCI-X 1GB Cache
Those numbers are for Arica hardware raid or linux software raid?
--Jeff
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