RAID 1 using SSD and 2 HDD

[Mike Power <mpower@xxxxxxxxxxxx>]

Is it possible to implement a RAID 1 array using two equal size HDD and 
one smaller and faster SSD.  The idea being that the resulting RAID 
would have the same size of the HDD while picking up the speed benefits 
of the SSD.  You can do something similar today by just buying two 
hybrid drives and putting them in an array.  By purchasing a dedicated 
SSD drive for that purpose you gain the ability of controlling the size 
of the SSD portion.  I was hoping the RAID array could use the SSD more 
as a cache then a redundant storage.

Mike Power
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