Samsung Software doesn't do any prepping for rapid mode.
Which windows server OS are you running? Have you tried putting it into the compatibility mode to fool the program into thinking it's a normal workstation OS.
I was going to chime in on this. I'm no different than anyone else with their opinions, observations, experience and advice: sometimes -- I get some details wrong. Nothing a little research won't cure, and certainly others -- such as yourself -- add to the cumulative input and reduce mistakes from misinterpretation.
I've seen indications that RAPID only works with the EVO. Otherwise, EVO benchmark tests comparing to some 20+ SSDs and including the "Pro" version would include RAPID in the comparison just as EVO does. Or why include the Pro in the mix if the review focused on RAPID? this was a Tech Report review, and I think Tech Report often gets it "right" as often as we'd find here at Anandtech -- they're both good reliable info sources.
But that's just one thought, since I mistakenly installed the "Pro" when I meant to install the EVO, and had to repeat the work with the little screws and tedium.
ESPECIALLY, however -- This:
Just about everywhere I've looked, there are clear, unambiguous statements that "RAPID Mode only works with Windows 7 and Windows 8." Period.
If I were trying to use it with WHS-2011 -- supposedly able to use Win 7 drivers if necessary -- I just might be SOL.
But as Tech-Greek says, it might actually work with a "compatibility" tweak to the program for the WHS 2011 / 2008 R2 OS.
EVEN SO! I have to run it with an SATA-III controller in a PCI-E 1.x slot. RAPID wouldn't give you 900+ MB/s in synthetic benchies. HOWEVER! It might boost to 500 give or take, bottlenecked as it is by the PCI-E bus, but cached and enhanced with system RAM. OF course, in this system, system RAM is DDR2-800. So it would likely depend on the range of speed disparity in the RAM as opposed to the caching effect compared to "non-RAPID."
Then, there's another possibility I have unrelated particularly to the Samsung 840s without omitting them. My controller card uses Marvell Hyper-Duo analog to Intel ISRT (but I understand that the caching is at the file level, as opposed to Intel's patent approach.) This also offers a possible SSD enhancement for certain server applications -- maybe DBMS like SQL Server or ORACLE.
Supposedly, the Hyper Duo approach allows for SSDs using sizes larger than 64 GB for the caching, and it may allow caching of several HDDs at once by the same SSD. I need to review what I'd encountered about Hyper Duo to confirm that feature. It wouldn't make sense for me to have seen "several SSDs and an HDD." Only the other way.
I think I can afford to double my RAM for this old server box to 8GB. Hmm.
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