If you want to know what your controller's queue depth is, here's the info from the VMware KB article 1027901:
- Run the
esxtopcommand in the service console of the ESX host or the ESXi shell (Tech Support mode). For more information, seeUsing Tech Support Mode in ESXi 4.1 and ESXi 5.0 (1017910) or Tech Support Mode for Emergency Support (1003677) .
- Press d.
- Press f and select Queue Stats.
- The value listed under
AQLENis the queue depth of the storage adapter. This is the maximum number of ESX VMKernel active commands that the adapter driver is configured to support.