The Nexsan SATABeast system must use a firmware level that is supported by the Lenovo Storage V7000. The current level is Nt66E.
See the following website for specific firmware levels and the latest supported hardware:
http://support.lenovo.com/us/en/products/servers/lenovo-storageThe minimum supported Lenovo Storage V7000 level for the attachment of Nexsan SATABeast is 5.1.0.3.