The asm disk cannot be found when you create a database using dbca.

If you use dbca to create a database, select the asm disk. However, you cannot find that the asm disk group has two scripts to be executed when installing the grid, one of which is u01apporaInventoryorainstRoot. sh, will modify the permission, I think it may be a permission problem. On the asmcmd side, you can view the asm disk group [grid @ rac22 ~]. $ Asmcmd

If you use dbca to create a database, select the asm disk. However, you cannot find that the asm disk group has two scripts to be executed when installing the grid. One of the scripts is/u01/app/oraInventory/orainstRoot. sh, will modify the permission, I think it may be a permission problem. On the asmcmd side, you can view the asm disk group [grid @ rac22 ~]. $ Asmcmd

If you use dbca to create a database, select the asm disk, but the asm disk cannot be found.

When installing grid, there are two scripts to be executed. One of the scripts is/u01/app/oraInventory/orainstRoot. sh, which will modify the permission. I think it may be a permission issue.

On the asmcmd side, you can view the asm disk group.

[Grid @ rac22 ~] $ Asmcmd
ASMCMD> ls
DATA/
DATA1/
DATA2/

See the following statement on the Internet:

After Grid Infrastructure and Database are installed, the owner of the installation directory may change to root. do not modify the owner of the installation directory or modify the permissions of the Directory and its files when you reinstall or upgrade it. If the owner is modified, for example, after the directory owner is changed from root: oinstall to grid: oinstall, or the read and write permissions of the Directory and its files are changed to 777, maybe dbca cannot find the previously created ASM disk when creating a database? ??

[Root @ rhel1 bin] # su-grid
[Grid @ rhel1 ~] $ Cd $ GRID_HOME/bin
[Grid @ rhel1 bin] $ chmod + s oracle

Chmod + s meaning:
To facilitate normal users to execute some privileged commands, the SUID/SGID program allows normal users to temporarily execute the program as root and resume their identities after the execution is complete. Chmod + s gives suid permission to a program or script.

After modifying this method, we can find the asm disk group.

Source: http://space.itpub.net/23135684/viewspace-676632

Original article address: the asm disk group cannot be found when you create a database using dbca. Thank you for sharing it with the original author.