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Hi Wei, Thanks for the information. I see that xrdadler32 works when oss.cache is used but not oss.localroot. Can this be advanced to the v3.0.5 release? Doug On 08/18/2011 04:48 PM, Yang, Wei wrote: > Hi Doug, > > I think I know what is going one. You have an oss.localroot setup, which is a simple form of N2N. In the current release, the xrootd passes the LFN to the checksum program, instead of PFN (=N2N(LFN)). So on the data server side xrootd runs: > > /usr/bin/xrdadler32 /atlas/... instead of /local/xrootd/a/atlas ... > > You can certainly work around this issue by telling xrootd.checksum to use a script which will do a simple N2N. It is not pretty. Andy said that this will be addressed in 3.1 > > regards, > Wei Yang | [log in to unmask] | 650-926-3338(O)