Ultra Fast Real world RAID drive
Posted 04 February 2013 - 10:21 AM
So this is a topic I would to start, in order to try and crack a problem I'm having, and hopefully help other people in the forum trying to accomplish this feat.
I'm looking to build a Windows Server (2008 or 2012) that will have a drive with a sequential throughput of 6 - 8 GBytes per second. I'm not talking about using IOMeter to benchmark the drives directly, but rather a real world example of a RAID 5 or 50 or 10 that can get those results through the file system. Currently it seems like I cannot really get passed the 4 GB/s mark.
I think it would carry some value if we could share information and see what the fastest drive that can be built using such real world scenarios.
Currently I have tried the latest round of PCI-E 3.0 controllers like the Areca 1882 (with v3.0 pcb), the LSI 9286 and the Adaptec 71605, all with fairly similar results.
Let's get this done!
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Posted 05 February 2013 - 08:09 AM
6GB/sec on a single controller? Which drives/motherboard are you using?
I have tried the Areca 1882 (with v3.0 pcb), the LSI 9286 and the Adaptec 71605. I can max them out at about 3.5 GB/s. but I would really think they should be able to top that, as theoretical speeds of 4.8 GB/s per controller should be possible. I was then hoping to soft stripe the two drives, but that produces often slower results than either drive combined.
Posted 11 February 2013 - 08:35 AM
All SSD PCI-E drives are still under 2 GB/s
Although they are usually working in perallel in costume situations (HPC/DB Servers/Etc').
My need is high throughput single volume storage.... tricky
Using Windows to RAID these might actually do what you need. RAID 10 of course.
I saw an article for a consumer PCI-E SSD that might better suit your $budget$.
Posted 13 February 2013 - 08:59 AM
OK the new Octal not withstanding as it's price is beyond enterprise levels
Everything else is still at 2 GB/s
I don't even know if I believe their 6 GB/s claim as it sits on PCI-E 2, which is capped at 4 GB/s anyway. So I think there is some fluff going on with their numbers.
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