Name: serverlist_select_mode
Type: STRINGLIST
Allowed-Values: random freespace-most freespace-percent-most
 freespace-percent-weighted freespace-percent-weighted-delta
Default-Value: freespace-most
Last-Modified: 2.5.0

Server selection mode.

*random*
    (pseudo-)random selection

*freespace-most*
    backend with the most (total) free space (KiB)

*freespace-percent-most*
    backend whose partition has the most free space (%)

*freespace-percent-weighted*
    same as for partition selection, comparing the free space (%) of the
    least used partition of each backend

*freespace-percent-weighted-delta*
    same as for partition selection, comparing the free space (%) of the
    least used partition of each backend.
