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CONTAP-707039: AA Director balancing in low-space mode can cause aggregates to become full unexpectedly

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Issue

A defect in AA Director (Allocation Area Director) behavior in low-space mode can cause repeated back-and-forth space balancing between FlexAggregates. This may lead to rapid reservation of space that is not reclaimed quickly enough, which can make aggregates report full and trigger outages even without corresponding data growth.

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