On 09/23/2013 03:31 PM, Paul Robert Marino wrote: > In general link speeds are fast enough that TCP is preferred for NFS. The UDP > transport is a vestige of running NFS over network connections that were slower > than the disk they would read and write from nowadays the reverse is generally > true and TCP is the safer transport method. To be a bit more specific, on modern networks NFS over UDP is susceptible to fragment-ID wraparound which could lead to data corruption. This has been well known since at least 2006[1]. On modern machines the difference in processing time between TCP and UDP is negligible, so there's just no good reason to take that risk. BTW, I've been using/developing NFS since v2 in 1990, when the difference really might have mattered. If I can see that NFS over UDP is past its sell-by date, so can anybody else. ;) [1] http://nfsworld.blogspot.com/2006_03_01_archive.html
