thanks ,i will try it later <div>2007/7/2, Bob Peterson <<a href="mailto:rpeterso@redhat.com">rpeterso@redhat.com</a>>:<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> On Mon, 2007-07-02 at 15:23 +0800, pastany wrote: > I am running a 4 node cluster with a fc switch and a fujitsu fc san > but i recevie this message ,and some partions dont work > > Jun 27 19:23:49 test1 kernel: SCSI error : <3 0 0 0> return code = > 0x10000 > Jun 27 19:23:49 test1 kernel: end_request: I/O error, dev sdb, sector > 668992848 Hi Pastany, This sounds like a hardware problem to me, not a GFS problem. It could be a bad drive, bad san or bad Host Bus Adapter (HBA). Perhaps you should unmount the san from all the nodes, then from one node, do a simple read test of the san: 1. Check dmesg and maybe clear your dmesg buffer: dmesg -c 2. Try reading every sector of the san: dd if=/dev/sdb of=/dev/null bs=1M 3. Check your console / dmesg to see if SCSI errors are reported. You may want to try that separately on a few different nodes just in case the error was caused by a bad HBA in the node that reported the problem. Regards, Bob Peterson Red Hat Cluster Suite -- Linux-cluster mailing list <a href="mailto:Linux-cluster@redhat.com">Linux-cluster@redhat.com</a> <a href="https://www.redhat.com/mailman/listinfo/linux-cluster"> https://www.redhat.com/mailman/listinfo/linux-cluster</a> </blockquote></div>