English to French Tech/Engineering Computers: Software

Hello,

Thin provisioning reserves capacity dynamically to keep slightly ahead of the written data. By doing so, thin provisioning gets rid of the upfront capacity reservation, thereby unlocking and freeing the capacity that would otherwise be reserved upfront and trapped. The ratio of capacity reservation to write data is thin rate

What do you think is the best translation for thin rate according to the description hereabove?

Thanks in advance.


Context (not very useful):

Allocation Capacity
Thin Rate
Redundancy Policy
ManagementIP
StorageIP