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CloudPools is an extension to SmartPools that enables tiering of data from a PowerScale to an ECS object storage, or to a public cloud, based on administrator-defined policies. This feature helps preserve the primary storage footprint by replacing old, infrequently accessed files with small reference or stub files. This frees up the storage space for newer, more frequently accessed data.
Note that most chip design workflows deal with large quantities of small files, which may be smaller than the stub files they would be replaced with. For EDA it is considered best to use PowerScale Hybrid/Archive model for infrequently accessed data.