I am considering to set up a hardware raid array with four 10TB disks. I need a faster read than write performance. Which raid suits me? Safety of data is also important. Thanks in advance.
I have the same question before, long long time ago. My solution now is double Raid5 or Raid5+JBOD, depending on how important your data is.
For such practice, you need 5-6 10T's for your 20T data...