Hey Wei, I think the VOMS mapfile tackles the case where there's an underlying storage system that really needs a "user name" that can't be derived algorithmically via the FQAN. Examples I know about are EOS and xrootd-multiuser (the former does the "VOMS mapfile" by converting a VOMS FQAN to a long list of DNs and maps those to a single username... that kinda works but is problematic for other reasons). Brian -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/xrootd/xrootd/issues/1538#issuecomment-958584074 ######################################################################## Use REPLY-ALL to reply to list To unsubscribe from the XROOTD-DEV list, click the following link: https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=XROOTD-DEV&A=1