An update. ACFS now comes up after reboot, but it was far from straightforward. Testing this without a complete reboot e.g. 'just restarting the clusterware' is not an adequate test -- ACFS will come up mounted upon clusterware restart, but not on a reboot if the registry entry doesn't exist. see tech note 1486208.1.
+“ora.drivers.acfs” Resource Was Not Configured Therefore RAC ACFS Filesystem Is Not Mounting During The Reboot. [ID 1486208.1]+
The solution was acfsroot install / enable. Check the clusterware stack for an entry of 'ora.registry.acfs' afterwards. ACFS should now return after reboot.
Here's my question -- why isn't this being installed after a clean grid installation? From what I'm reading (see below), it sounds like root.sh should handle this. why would Oracle need a tech note on this issue if this were being handled as advertised? I just installed 3 clusters and all of them had this issue, missing ora.registry.acfs entry. All of them had root.sh & orainstRoot.sh run cleanly. This is OEL6 / 126.96.36.199.
"The Oracle ACFS drivers resource (ora.drivers.acfs) is *created by the Grid Infrastructure root script that is executed following the Grid Infrastructure installation*. The Oracle ASM instance resource (ora.asm) names the drivers resource as a weak dependency. As a result, the start action for the drivers resource is also called whenever the start action for the ora.asm resource is issued. The start action for the drivers resource includes support for loading the Oracle ACFS, Oracle ADVM, and OKS drivers into the operating system. "