Recently during VMware Flash Read Cache testing I noticed that drivers on my ESXi hosts (HP BL460c blades) were not up to date. After looking into it I discovered that not all drivers were downloaded to VUM automatically from HP vibsdepot.
Currently I had only added source http://vibsdepot.hp.com/index.xml to VUM which provided me with updates to HP Management tools for ESXi.
To get the latest drivers automatically I added a new URL to VUM – http://vibsdepot.hp.com/index-drv.xml
More information can be found at – http://vibsdepot.hp.com/