Best way for a secure backup

[sswats]

I've just had a RAID 1 system crap out on me. Some sort of corruption which led to windows running a chkdsk which seemed to have wiped data.
To be fair it was one of those external USB enclosures with RAID capability rather than on a server but it has me questioning the reliability of RAID1.

So I'm looking for alternatives and am going to use a server. SO i've put 2 drives in one of those mini HP server machines (in addition to the OS drive) which i have to hand but am not going to put them in RAID1.

Ideally when copying over the network to the server it would put a copy onto each drive.

Is there an automated way to do that which the server can handle. I backup backup different laptops so I'd rather not put the software on the laptops themselves plus I would like it only transfer it once over the network as some of the laptops are only capable of 100Mb so that can take a while.

 

[sswats]

Sorry, its not technically a backup its for storing the data, and the original drives will be wiped.

So i would need the data transferred to the computer as quickly as possible so i could carry on with wiping the hard disks. So setting up a schedule to copy the data across seems a bit slow as i wait for one copy to finish and then the scheduler to start.
Can it be done where as soon as its picked up by one hard drive, one of those programs instantly copies it over again to the other hard drive.

I've tried synctoy (not for this actual purpose though), but am going to play with robocopy to see what it can do.