Just to put a comment here since Raja, Andy and I are using another e-mail thread for discussion because it potentially involves site detailed configuration. What I see from those configs is that the CEPH block site is 64M (as Raja confirmed), but the CEPH-xrootd gateway using 16M for async IO. The Xcache use 64M for async IO and 16M for pfc.blocksize. So I am suggesting Raja to change all of them to 64M. regards, -- Wei Yang | [log in to unmask]<mailto:[log in to unmask]> | 650-926-3338(O) On 7/23/20, 9:23 AM, "Brian P Bockelman" <[log in to unmask]<mailto:[log in to unmask]>> wrote: -- You are receiving this because you were mentioned. Reply to this email directly or view it on GitHub: https://github.com/xrootd/xrootd/issues/1259#issuecomment-663140433 ######################################################################## 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