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Poor SSD performance

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I have 6x Samsung 840 Pro 256GB SSDs running in Raid-5 configuration using Sata 6.0g. I am fairly new to SSD performance levels, and know that 4k read/write can be a bit low, but less than 1MB/s is far from the levels I have seen in just one drive.

The test is still running as you can see, and the 4k speed is going to take more than 20 minutes to complete. I just wanted to get ideas from the community in case I am missing obvious.



Note: The interface says SCSI because it is a VMWare configuration setting, the interface is SATA to 10G fiber.

Update 1: slight mistake, one of the other techs moved it to the HDD array last night due to performance issues, but the issues continue to be proportionally just as slow. The issue might go beyond the hard drives, so I will include a bit more info: The computers are running on VMWare 5.1.0 using a virtual SCSI appliance (something we normally do).
 
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Joined
Feb 26, 2008
Messages
4,876 (0.83/day)
Location
Joplin, Mo
System Name Ultrabeast GX2
Processor Intel Core 2 Duo E8500 @ 4.0GHZ 24/7
Motherboard Gigabit P35-DS3L
Cooling Rosewill RX24, Dual Slot Vid, Fan control
Memory 2x1gb 1066mhz@850MHZ DDR2
Video Card(s) 9800GX2 @ 690/1040
Storage 750/250/250/200 all WD 7200
Display(s) 24" DCLCD 2ms 1200p
Case Apevia
Audio Device(s) 7.1 Digital on-board, 5.1 digital hooked up
Power Supply 700W RAIDMAXXX SLI
Software winXP Pro
Benchmark Scores 17749 3DM06
Are you benchmarking inside a VM?

Yes we are, and both of the arrays are being used by just the three test machines for the time being.

This system is set up as a testbed for rolling out a 24-drive Raid-10 SSD array for general purpose workstations. The workstations are being ran remotely from their desk with a zero-client.
 
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Benchmark Scores Faster than yours... I'd bet on it. :)
I have to imagine that testing in a virtual environment has something to do with it...

That said, I don't understand what the raid card has to do with my question, LOL!
 

v12dock

Block Caption of Rainey Street
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Yes we are, and both of the arrays are being used by just the three test machines for the time being.

This system is set up as a testbed for rolling out a 24-drive Raid-10 SSD array for general purpose workstations. The workstations are being ran remotely from their desk with a zero-client.

Have you tried benching outside of the virtual machine? If its still running poorly than you can bet on the problem being on the hardware side
 
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