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Need help choosing a hardware raid card

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April 11, 2011 5:01:11 PM

I would like to set up a raid 5 on my system for a little bit of redundancy and a speed increase. I was thinking of setting 4 drives into a raid 5, but I hear that it is a good idea to use a raid controller card to do this (as calculating parity can flood the bus, and not give you the performance you would like)
I see there are many options available through sites like newegg, but the price points range widely from 50 dollars to 2000 dollars.

Can someone help me find a suitable card for 4, (or if not much more expensive) 8 sata 3.0Gbit or 6.0Gbit interface drives? Thanks much!
April 11, 2011 6:04:55 PM

Looks like it would be working off of a single bus, so the reads/writes would be maxed at 3.0gbit (300MBS useable, I think)
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April 11, 2011 8:50:56 PM

miketsmith said:
Can someone help me find a suitable card for 4, (or if not much more expensive) 8 sata 3.0Gbit or 6.0Gbit interface drives? Thanks much!


If you are looking for a controller supporting up to 8 SATA 6Gb/s drives and willing to spend about $600, I would recommend Areca ARC-1880i. This card has two SAS connectors, comes with two SFF-8087 cables for connecting up to 8 SATA hard drives and has very good performance.
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April 12, 2011 6:03:51 PM

miketsmith said:
Looks like it would be working off of a single bus, so the reads/writes would be maxed at 3.0gbit (300MBS useable, I think)



The beauty of this hardware raid controller is driver-less, as far as system concern it sees the raid as a SINGLE hdd
with transfer rate of 230~250MB/s

So if you need more speed just add another one and create a raid0

With 2x SPM393 cost at $240.00, you can create a RAID50 (10x HDD) and it can transfer about 450~495MB/sec with email notification

Of course if you want faster than add another controller...

Quote:
miketsmith wrote :

Can someone help me find a suitable card for 4, (or if not much more expensive) 8 sata 3.0Gbit or 6.0Gbit interface drives? Thanks much!


There is NO hardware controller 8ports PCIe that costs below $400.00
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April 14, 2011 1:42:27 AM

miketsmith said:
What kind of a write/read speed can you get out of a single drive these days?
What about four port cards under 400?

And how does this look? http://www.newegg.com/Product/Product.aspx?Item=N82E168...


This is very good raid card, you may able to get about 300MB/sec on raid5 with 4 drives (7200rpm)
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