[RndTbl] Linux analogs to FreeNAS?

Hi All, It was very interesting to listen to FreeNAS talk. But, is there anything similar (free, easy to use on a whitebox hardware) for Linux (I know it is not as serious system as *BSD but it is the one with Infiniband drivers). Goodling brought me Openfiler (http://www.openfiler.com/) which seems to be not that free (replication, HA, iSCSI etc. costs some thousands of euros). Is there anything else? -- Grigory Shamov HPC Analyst, Westgrid/Compute Canada E2-588 EITC Building, University of Manitoba (204) 474-9625