How can I create RAID 1 on Mac mini server just now from box.

I bought my Mac mini server two days ago and decided that 1Tb + 1Tb HDD are very good for RAID 1 (mirroring).
Thinking - doing ... Open Disk Utility, try to change and create RAID. Nothing. Try to reinstall OS X - recovery part are on disk all time.
Does anybody can help me to create what I want and how to do this with minimum energy. Thanks a lot.

Start from an Internet Recovery which boots you into it's own Recovery Partition. From there use Disk Utility to put your 2 drives into RAID 1. Reinstall OS X from the Internet Recovery once you have done that and install everything else as you need to.
Be aware that RAID volumes do not have their own Recovery Partition so you will need to either have an external drive with an RP to boot into else you will need to use Internet Recovery each time (which is around a 650MB download).

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