This portal is to open public enhancement requests against IBM Power Systems products, including IBM i. To view all of your ideas submitted to IBM, create and manage groups of Ideas, or create an idea explicitly set to be either visible by all (public) or visible only to you and IBM (private), use the IBM Unified Ideas Portal (https://ideas.ibm.com).
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We would like to be able to mirror DASD units across 3 (or more) physical devices, instead of just two.
Mirroring as it current exists only has protection against a single DASD device failure. While the probability of the mirrored unit failing is low, the rebuild process puts extreme load on the remaining unit and can take a very long time with large modern drives.
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