Date: 15 Oct 2004 21:31:22 -1000 From: Gary Dunn <knowtree@aloha.com> To: Bigbrother <bigbrother@bonbon.net> Cc: freebsd-questions@freebsd.org Subject: Re: NFS data integrity failure Message-ID: <1097911884.2633.10.camel@vaiosr7k.ozland> In-Reply-To: <200410141758.i9EHwDMm000439@bigb3server.bbcluster.gr> References: <200410141758.i9EHwDMm000439@bigb3server.bbcluster.gr>
next in thread | previous in thread | raw e-mail | index | archive | help
On Thu, 2004-10-14 at 07:58, Bigbrother wrote: > > MachineB mounts machineA:/disk and puts 1.2 GB of data from its disk to the > machineA dick. A CRC check performed on the copied files show that > everything is correct. (always!) Then do it this way :-) Seriously, though, to isolate NFS you need to exercise the network and file systems using other methods. How about transfering the same files using a) ftp and b) scp. If the problem is dropped packets or fragmentation or stuck bits in the NIC, those methods will be equally unsuccessful. Does either machine ever display an error message about nfs going down then coming back? I can't remember the exact words, something like connection lost then restored. When this happens to me at work it is due to the ethernet switch port one system is connected to coming up in half duplex instead of full duplex. Once it was a bad cat5 cable. Are the file sizes different? -- Gary Dunn knowtree@aloha.com Honolulu
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?1097911884.2633.10.camel>