An administrator notices that there is an all paths down (APD) event occurring for the software FCoE storage.
What is a likely cause?
A.
Spanning Tree Protocol is enabled on the network ports.
B.
Spanning Tree Protocol is disabled on the network ports.
C.
Spanning Tree Protocol is enabled on the storage processors.
D.
Spanning Tree Protocol is disabled on the storage processors.
Explanation:
Explanation/Reference:
A is correct:
https://pubs.vmware.com/vsphere-60/index.jsp#com.vmware.vsphere.storage.doc/GUID-6B49866F-7005-4099-84AC-4FB2A1A91F64.html?resultof=%2522%2553%2570%2561%256e%256e%2569%256e%2567%2520%2554%2572%2565%2565%2520%2550%2572%256f%2574%256f%2563%256f%256c%2522%2520
Agree with A
https://pubs.vmware.com/vsphere-60/index.jsp?topic=%2Fcom.vmware.vsphere.storage.doc%2FGUID-6B49866F-7005-4099-84AC-4FB2A1A91F64.html&resultof=%22FCOE%22%20%22fcoe%22%20%22spanning%22%20%22span%22%20%22tree%22%20
Search Configuration Guidelines for Software FCOE
Agreed –
On the ports that communicate with your ESXi host, disable the Spanning Tree Protocol (STP). Having the STP enabled might delay the FCoE Initialization Protocol (FIP) response at the switch and cause an all paths down (APD) condition.
https://docs.vmware.com/en/VMware-vSphere/6.0/com.vmware.vsphere.storage.doc/GUID-6B49866F-7005-4099-84AC-4FB2A1A91F64.html