ASM - How the asm search the disks and where is this parameter from? I'm a begginer in Oracle ASM and when I will create a diskgroup the ASM shows me this parameter:



Where is this parameter from? I don't remember set any parameter with this name. I know that usually Oracle set this name as default when is not set a preferential parameter name, but in the creation process I don't saw this configuration.
Take a look at the ASM_DISKSTRING initiallization parameter for your ASM instance.  

ASM_DISKSTRING