Hello, I have a question about NFS clustering and data corruption. I have built out a HA NFS solution using heartbeat on SLES 10. Everything seems to be working well, but upon mounting the cluster on my SLES client I received the error message:
Using NFS over UDP can cause data corruption. Please refer to the WARNINGS section of the nfs(5) manual page. I had not noticed this earlier as all but one of my NFS clients are Debian. Apparently running NFS over UDP on gigabit networks can cause corruption due to packet reassembly and IP ID's wrapping. Since I must run NFS over UDP for NFS fail over to work, the nfs man page presents me with limited options. I can set the MTU of all of the machines and the switch ports in between to a MTU of 9000, or I can set my IP fragmentation time out to 2 seconds. Has anyone else on this list run into issues with data corruption when implementing HA NFS? Any suggestions on the proposed solutions from the man page? Thanks, Ryan _______________________________________________ Linux-HA mailing list [email protected] http://lists.linux-ha.org/mailman/listinfo/linux-ha See also: http://linux-ha.org/ReportingProblems
