VMware vSphere Troubleshooting

Storage module troubleshooting

All the storage-related APIs communicate with VMkernel through storage modules. You should know some of the basic commands for troubleshooting VMkernel storage module issues.

To list all the storage modules, use the following command, which will also display the modules that are loaded within VMkernel and the status of each module—whether it is enabled or not in the active state:

esxcli system module list
Name                           Is Loaded  Is Enabled
-----------------------------  ---------  ----------
vmkernel                            true        true
chardevs                            true        true
user                                true        true
vmkapei                             true        true
dell                                true        true
vprobe                              true        true
procfs                              true        true
procMisc                            true        true
vmkapi_socket                       true        true
vmkapi_v2_0_0_0_vmkernel_shim       true        true
vmkplexer                           true        true
vmklinux_9 true ...