Do I need the DVD to reformat 2011 MacBook Pro with OS X Yosemite I have a MacBook Pro from early 2011 which was shipped to me with a DVD that I could use to reformat the machine, which I do not have with me at the moment.  I have upgraded to OS X Yosemite though, and have reformatted the newer Retina MacBooks which used an Internet connection to download the OS.

Since I do not have the disc handy, will I be able to do this later reformatting on my older MacBook Pro?
If your MacBook Pro (early 2011) was updated with Macbook Pro EFI Firmware Update 2.3 then you will be able to use OS X Internet Recovery and not need the DVD that shipped with your Mac.  Also have a look at: OS X: About OS X Recovery