How to enable PERC RAID 1 on ancient Dell Poweredge 2850?

We have an old Dell Poweredge 2850 with three SAS drives that I would like to have in a RAID 1 configuration.  Currently this server is in production.  The C drive or logical drive with the system partition on it lives on a physical hard drive at location or bay 0.  The other two physical drives live at bay 1 and 2.  They have logical partitions living on them that are not important and can be erased.

An overview of what I want to do.  I simply want to setup a hardware based  RAID 1 configuration between disk 0 and 1.  Disk 0 being the source and disk 1 being the target and copy the existing data.  Disk 2 will be left no RAID and as simple a none redundant spare data drive.

Now on to the "find the jade monkey before the next blue moon" IT caveats.  It looks like there is no PERC capability on this particular build of 2850 server I inherited.  It has a riser card with Dell part #U8373 that has some sort of LSI sub-controller menu that you can get into via some ctrl + xyz combination.  The menu has references to the word RAID or maybe it was just SCSI ( I can't really remember) peppered about.  But it looks like it has no options to configure any kind of RAID between the existing drives like you would expect with one of Dell's PERC proper controllers.

I did some Googling and came across the following website...
link
http://store.flagshiptech.com/dell-poweredge-1850-2800-2850-perc-4e-di-raid-key-kit-battery-h1813-f6928-g3399/

So, I am wondering if I need to purchase a kit like this to enable PERC in this LSI Dell riser card?  Is that logic correct?  Could I scavenge one of these kits out of another dead Dell Poweredge 2850 server if I had one and swap it into the live one?  Or would this cause explosions?  Could this be done without loosing the data on drive 0?

Thanks for the info and help.
CnicNVAsked:
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D_VanteCommented:
You said you have SAS drives, but doesn't the 2850 use SCSI drives?
You will need the key to enable RAID and the memory if the card supports migration.
Make a good backup of everything before you start.
I would recommend calling Dell for support, have them talk you through it.
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CnicNVAuthor Commented:
This is what I was thinking.  For a server that sells on ebay from about 39 to 100 dollars I can't be bothered.  But setting up whats on that server from scratch again would be a headache so I may revisit it in future or ptov the stuff off and onto something more robust.

Thanks again for the insight :)
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