Unfortunately it is not yet possible due to disbalance in resource utilization.
To implement this feature I see two ways:
  • move to distributed object storage (CEPH for example), or
  • launch a separate cluster of HDD backed VPS with a small SSD partition for OS and boot, without lots of unnecessary CPU&RAM resources.
The second option is what we are working on currently, however there is no ETA when we will launch new tariff line yet, sorry.