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Oracle ASM Normal,High and External Redundancy

007Jun 26 2013 — edited Jul 24 2013

Hi,

I have a few doubts in Normal,High and External redundancy levels in ASM concept.

External - No failure group. No mirroring.

Normal - Two Way Mirroring. One failure group.

High - Three Way Mirroring. Two failure group.

1. I hope my understanding on above mentioned 3 types in correct.

2. My main question is what is the minimum number of disks needed in Disk group creation in Normal and External redundancy??? we cannot create disk group with one disk member??

Regards,

007

This post has been answered by Dude! on Jul 23 2013

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#automatic-storage-management, #performance-availability

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