We would like to periodically provision queryable snapshots on a programmatic basis (aka Ops Manager public API call) to easily get a consistent dump of sharded clusters in order to put those dumps in a "very safe location". We want to use this as part of a last resort backup strategy. The idea is that a dump is much easier to be restored by a "last resort restore app" compared to the http-downloaded plain data files.

One other option to extract the contents of a sharded cluster would be to use "Long Running Queries" but this cannot be used along with mongodump.