ASM Does Not Discover Disk on Solaris
(Doc ID 368840.1)
Last updated on OCTOBER 12, 2018
Applies to:Oracle Database - Enterprise Edition - Version 10.1.0.2 to 18.104.22.168 [Release 10.1 to 12.1]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata 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)
***Checked for relevance on 01-Nov-2014***
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.
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