D14-集群调试—IB网络配置排错.ppt

* * * * Output files ibdiagnet.log - A dump of all the application reports generate according to the provided flags ibdiagnet.lst - List of all the nodes, ports and links in the fabric ibdiagnet.fdbs - A dump of the unicast forwarding tables of the fabric switches ibdiagnet.mcfdbs - A dump of the multicast forwarding tables of the fabric switches ibdiagnet.sm - List of all the SM (state and priority) in the fabric ibdiagnet.pm - A dump of the pm Counters values, of the fabric links ibdiagnet.db_csv - A dump of the internal subnet database. * Ibdiagnet usage (Fabric Cleaning) Ibdiagnet is particularly useful in finding misconfigured links (speed/width, topology mismatches, and marginal link/cable issues. Typical usage: Clear all port counters using ‘ibdiagnet –pc’ Stress the cluster Check cluster using ‘ibdiagnet -P all=1 -ls 10 -lw 4x -pc --get_cable_info --pm_pause_time Checks for link speed, link width, and port error counters greater than 1 * Cluster utilities - ibnetdiscover Reports a complete topology of cluster Shows all interconnect connections reporting: Port LIDs Port GUIDs Host names Link Speed GUID to name file can be used for more readable topology in regards to switch devices * Error counter review SymbolErrors Total number of minor link errors. Usually an 8b/10b error due to a bit error Link Recovers Total number of times the Port Training state machine has successfully completed the link error recovery process. LinkDowned Total number of times the Port Training state machine has failed the link error recovery process and downed the link. RcvErrors Total number of packets containing an error that were receive on the port. Usually due to a CRC error caused by a bit error within the packet. RcvSwRelayErrors Total number of packets received on the port that were discarded because they could not be forwarded by the switch relay. This counter should typically be ignored since