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Storage limits are calculated against any content file handle in shared or private storage. Content stored in Custom Storage is not counted against the limit. For example, take a simple organization with a Self-Managed plan (100 GB limit) with 3 projects, (Projects A, B, & C) Project A (30GB) has its storage in private storage A. Project B (40GB) has its storage in private Storage B. Project C (700GB) has its storage in custom storage.
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