In the storage documentation link
There is a reference in the path.data section that states the following:
"Elasticsearch requires the filesystem to act as if it were backed by a local disk, but this means that it will work correctly on properly-configured remote block devices (e.g. a SAN) and remote filesystems (e.g. NFS) as long as the remote storage behaves no differently from local storage."
Is there a definition of what "properly-configured remote block devices (e.g. a SAN) and remote filesystems" means? Specifically the "properly-configured" portion?
I understand that storage is expected to meet the "behaves no differently from local storage." statement, but the the "properly-configured" portion leads me to think that there are specific tune-ables and or settings that are important to have in place before using SAN/NAS storage. Is there a list of those requirements?