Optimal FTK 6 configuration

Hi,

We just buy new forensic workstation with following configuration

1) Two SSD of 512GB in RAID 0 as one SSD with 1TB capacity,

2) Two separate SSD of 512GB,

3) One SSD on which is installed Windows 10 OS,

4) RAID 5 HDDs of 18TB.

How we can get optimal configuration for FTK 6.3 with this workstation (for example where should be Temp folder, Database folder, PostgreSQL, Case folder, etc.). Just one note here, we don't have extra SSD's so we need to work with this workstation at least two years, without changing any disk.

Thank you in advance.