My Oracle Support Banner

ASM Does Not Discover Disk on Solaris (Doc ID 368840.1)

Last updated on FEBRUARY 09, 2022

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 10.1 to 12.1]
Oracle Database Cloud Schema Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Solaris on SPARC (64-bit)
Solaris Operating System (SPARC 64-bit)


Using ASM on any  SOLARIS platform and not using a volume manager to manage the disks.  Under this circumstances, the disks are identified under path /dev/rdsk.

The problem is the disks are not discovered when the instance is started.

Basic points that need to be reviewed:

* permissions of the device are set for the oracle owner, group and mode 0660.
* Parameter asm_diskstring is configured with a value that resolves the disks to be used.

Queries over v$asm_disk does not return rows or does not return all the expected disks.




To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.