Default Queue Depth values for QLogic HBAs for various ESXi/ESX versions

This table lists the default Queue Depth values for QLogic HBAs for various ESXi/ESX versions:

The default Queue Depth value for Emulex adapters has not changed for all versions of ESXi/ESX released to date. The Queue Depth is 32 by default, and because 2 buffers are reserved, 30 are available for I/O data.

The default Queue Depth value for Brocade adapters is 32.