== calculate number of files
== create per mount dirs
== generate phase scripts
== round 1: create
== round 1: online
== round 1: verify
== round 1: release
== round 1: offline
== round 1: stage
== round 1: online
== round 1: verify
== round 1: release
== round 1: offline
== round 1: unlink
== round 2: create
== round 2: online
== round 2: verify
== round 2: release
== round 2: offline
== round 2: stage
== round 2: online
== round 2: verify
== round 2: release
== round 2: offline
== round 2: unlink
== round 3: create
== round 3: online
== round 3: verify
== round 3: release
== round 3: offline
== round 3: stage
== round 3: online
== round 3: verify
== round 3: release
== round 3: offline
== round 3: unlink