Hello Chris,
You need to download this tool from LSI's website. LSI is the RAID controller's manufacturers. Look in google for "MegaRAID SAS XXXX" where XXXX is the RAID controllers model.
For example, here is this one for the 9260-8i: http://www.lsi.com/products/raid-controllers/pages/megaraid-sas-9260-8i.aspx ; <<< Go to "Software Downloads"> "Management Software and Tools" > download "MegaCLI 5.5 P2"which is for "DOS FreeBSD Linux Solaris VMware VMwareMN Windows EFI"
I hope this helps, if it did, please rate the answer.
-Kenny