Multipathd shows error related to ASM during boot in Oracle RAC.

Issue

• In an oracle RAC environment, the multipathd shows the following errors during boot.

/sys/block/asm!.asm_ctl_vbg0/device doesn't exit, not adding asm!.asm_ctl_vbg0  
/sys/block/asm!.asm_ctl_vbg1/device doesn't exit, not adding asm!.asm_ctl_vbg1  
/sys/block/asm!.asm_ctl_vbg2/device doesn't exit, not adding asm!.asm_ctl_vbg2  
/sys/block/asm!.asm_ctl_vbg3/device doesn't exit, not adding asm!.asm_ctl_vbg3  
/sys/block/asm!.asm_ctl_vbg4/device doesn't exit, not adding asm!.asm_ctl_vbg4  
/sys/block/asm!.asm_ctl_vbg5/device doesn't exit, not adding asm!.asm_ctl_vbg5  
/sys/block/asm!.asm_ctl_vbg6/device doesn't exit, not adding asm!.asm_ctl_vbg6  
/sys/block/asm!.asm_ctl_vbg7/device doesn't exit, not adding asm!.asm_ctl_vbg7  
/sys/block/asm!.asm_ctl_vbg8/device doesn't exit, not adding asm!.asm_ctl_vbg8  
/sys/block/asm!.asm_ctl_vbg9/device doesn't exit, not adding asm!.asm_ctl_vbg9  
/sys/block/asm!.asm_ctl_vdbg/device doesn't exit, not adding asm!.asm_ctl_vdbg  
/sys/block/asm!.asm_ctl_vmb/device doesn't exit, not adding asm!.asm_ctl_vmb