HP Brocade 8/12c Brocade Fabric OS Troubleshooting and Diagnostics Guide - Sup - Page 42
Performance issues, The FCR tends to take a long time, more than 5 seconds
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2 FC-FC routing connectivity For details about the pathInfo command, refer to the Fabric OS Command Reference. Performance issues Symptom Symptom General slow-down in FCR performance and scalability. Probable cause and recommended action As LSAN zone databases get bigger, it takes more switch resources to process them. Use the enforce tag feature to prevent a backbone switch from accepting unwanted LSAN zone databases into its local database. Host application times out. Probable cause and recommended action The FCR tends to take a long time, more than 5 seconds, to present and setup paths for the proxy devices. Certain hosts are able to do discovery much faster as a result they end up timing out. Use the speed tag feature to always present target proxy to the host and import them faster. This helps sensitive hosts to do a quick discovery without timing out or cause an application failure. 22 Fabric OS Troubleshooting and Diagnostics Guide 53-1002150-02