Re: reg ASM - External redundancy

Posted by ErmanArslansOracleBlog on Jul 11, 2018; 10:54am
URL: http://erman-arslan-s-oracle-forum.124.s1.nabble.com/reg-ASM-External-redundancy-tp6383p6384.html

When you use external redundancy, you rely on the storage level raid.

So if you mirror your data in storage level, then you can continue your work when 1 disk fails

Important note:  I mean "it can tolerate 1 physical disk fail" -- This physical disk that I m talking about is really a "physical disk" -- the disk drive itself)

When you use external redundancy, ASM won't do any mirroring.. The fault tolerancy in storage layer, become the fault tolerancy of ASM.

External redundancy means -> you use storage array protection features.