Hi, there is a CLI command to acheive that: scli --modify_spare_policy ... --spare_percentage 34

Spare capacity should cover a failure of one entire node, so it should be equal to 1/N in case of equally balanced setup or to the capacity of the largest node in case one node is bigger than others.

This relates to spare capacity, what you need to insert in the command is percentage, so some math needs to be done :-) In addition it is necessary to round up decimal values. For example in three nodes setup it 34 % instead of 33,33 %.