Pro tip: use RAID10 instead of RAID1 with Linux md to have the same level of redundancy for arrays with only two legs. RAID10 will properly stripe/balance reads

Pro tip: use RAID10 instead of RAID1 with Linux md to have the same level of redundancy for arrays with only two legs. RAID10 will properly stripe/balance reads across them, effectively doubling linear read throughput. The only real downside is that you will have to find and actively choose a sensible chunk size that fits both your hardware and workload.