OptionAZURE_STORAGE_PREFERRED_COPY_SOURCE
Description Sets how to download segments from bucket storage when prefetching
Introduced Version1.180.0
Defaultfalse

From version 1.190, if true, node-to-node transfers in the cluster are disabled entirely. All fetching between nodes will happen via bucket storage.

From version 1.190, if false, node-to-node transfers in the cluster are enabled. Local fetching will always be used unless the segment is only in bucket storage, and segment prefetching will only download segments that are not on another host.