On the Yosemite website you can read this: "Previously Hewlett Packard has bundled Yosemite TapeWare XE with its StorageWorks tape drives. TapeWare XE provided the building blocks for a complete backup and recovery solution.
Recently HP has started to replace Yosemite TapeWare with HP StorageWorks Data Protector Express. Please speak to your HP Account Manager/Reseller Partner to get the latest information on this."
A strange thing. If you download and start up DPX it looks remarkably like TapeWare.
Wow, it is TapeWare, I mean, it's too much of a coincidence. Surely HP is re-branding TapeWare and shipping it with every ProLiant? Congrats To Yosemite if that's the case - and I think it is.