Voting disk - Raid - external redundancy

[satish]

Dear erman,

We are on 12.1.0.2

I understand in normal or high redundancy disk group,if one of the disk where ocr and vote disk is corrupted,then Diskgroup keeps running.

But in external redundancy with raid configuration,when a disk where ocr/vote disk fails,then will  disk group gets dismounted?

Please clarify.

Thanks,
Satish

[ErmanArslansOracleBlog]

In external redundancy, your storage array should guarantee the availability of the data. If Oracle can not reach the data (ocr & vote disks in this case) , then the things fails.
So as long as your raids tolerate disk failures, you ll be safe.