The OCR diskgroup is auto mounted by the ASM instance during startup. The CRSD and ASM
dependency is maintained by OHASD.
ASM has to be up with the diskgroup mounted before any OCR operations can be
performed. There are bugs reported when the diskgroup having OCR was dismounted force
and/or ASM instance was shutdown abort.
When the stack is running, CRSD keeps reading/writing OCR.
OHASD maintains the resource dependency and will bring up ASM with the required
diskgroup mounted before it starts CRSD.