The retrans field (under Client rpc) indicates the number of packets that this host had to retransmit as an RPC client: that is, the number of retransmissions it made while reading or writing an NFS file. If this field is greater than 5 percent of the total number of client NFS
calls, suspect trouble. Compare the number of retransmissions to the badxid field (number of times a reply from a server was received which did not correspond to any outstanding call). If badxid and retrans are roughly equal, one or more of the network's NFS servers is having trouble keeping up with the client's demands. This isn't a data corruption problem, but a performance
problem on the part of the server. If retrans is high but badxid is relatively small or zero, the problem is in the network itself - the network is either slow or suffering from data corruption.
Regards,
CA,