If you are working on RHEL, then to use the disk in ASM diskgroup, the disks need to be labeled with ASM. Earlier oracleasm utility was used for this purpose. But oracle developed its own ASM filter d...

ASMlib driver is required on  Linux operating systems, to enable a disk readable by ASM. Without ASMLIB, disks can’t be used at asm disks. Below are the steps for configuring ASMlib and marking...