It seems Xcache works when the file isn't fully cached, but once it is fully cached (or perhaps after .cinfo is updated), I got a read only file systems error. This is with xrootd 5.1.0rc4. The following is a repeated xrdcp of the same file from a Xcache $ xrdcp -f root://dtn01.nersc.gov:46750//root://osggridftp01.slac.stanford.edu:2094//xrootd/atlas/atlasdatadisk/rucio/mc16_13TeV/72/7f/log.23681514._000288.job.log.tgz.1 /dev/null [3.23MB/3.23MB][100%][==================================================][3.23MB/s] $ xrdcp -f root://dtn01.nersc.gov:46750//root://osggridftp01.slac.stanford.edu:2094//xrootd/atlas/atlasdatadisk/rucio/mc16_13TeV/72/7f/log.23681514._000288.job.log.tgz.1 /dev/null [3.23MB/3.23MB][100%][==================================================][3.23MB/s] $ xrdcp -f root://dtn01.nersc.gov:46750//root://osggridftp01.slac.stanford.edu:2094//xrootd/atlas/atlasdatadisk/rucio/mc16_13TeV/72/7f/log.23681514._000288.job.log.tgz.1 /dev/null [3.23MB/3.23MB][100%][==================================================][3.23MB/s] $ xrdcp -f root://dtn01.nersc.gov:46750//root://osggridftp01.slac.stanford.edu:2094//xrootd/atlas/atlasdatadisk/rucio/mc16_13TeV/72/7f/log.23681514._000288.job.log.tgz.1 /dev/null [3.23MB/3.23MB][100%][==================================================][3.23MB/s] $ xrdcp -f root://dtn01.nersc.gov:46750//root://osggridftp01.slac.stanford.edu:2094//xrootd/atlas/atlasdatadisk/rucio/mc16_13TeV/72/7f/log.23681514._000288.job.log.tgz.1 /dev/null [0B/0B][100%][==================================================][0B/s] Run: [ERROR] Server responded with an error: [3025] read-only file system (source) I attached the corresponding xrootd log file. [xrd.log](https://github.com/xrootd/xrootd/files/5810243/xrd.log) -- 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/1381 ######################################################################## 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