Hi Ruben,

Can ASMCMD be used to get data for the disk volumes in your environment? If so, we can write a plugin to execute the below command and parse those metrics to monitor your Oracle ASM disk volumes.

Command:

volinfo { -a | -G diskgroup -a | -G diskgroup volumename }

Sample data to get volume1 of data diskgroup is given below:

volinfo -G data volume1
Diskgroup Name: DATA
         Volume Name: VOLUME1
         Volume Device: /dev/asm/volume1-123
         State: ENABLED
         Size (MB): 10240
         Resize Unit (MB): 64
         Redundancy: MIRROR
         Stripe Columns: 8
         Stripe Width (K): 64
         Usage: ACFS
         Mountpath: /u01/app/acfsmounts/acfs1

Please confirm by replacing the appropriate volumename and diskname, execute the above command, and verify if you are getting an output in the above format. 

Regards,

Anita