Comment 1 for bug 1735284

So the feature seems legit/supported:

https://github.com/aws/aws-sdk-java/issues/1172

The response there suggested just using normal Range requests, but it's nice for parallel download to be able to make requests out directly to the specific segments/disks without overlap. Swift clients can do this today because the manifest and segments themselves are available using:

?multipart-manifest=get

I don't think the API can avoid reading the manifest to find the segment name, but it's an internal request so cheap enough. I think that's a reasonable approach for s3api/swift3 to support the API - and it'd be nice to do if there's some sdk's that will let applications take advantage of it easily.