The storage tier used to manage rarely changing, persistent data within SAP HANA is the Native Storage Extension (NSE). NSE is designed to:
* Native storage extension (C): Extend the in-memory capabilities of SAP HANA to include disk-based storage, effectively managing larger data volumes that do not fit into memory or do not require the high performance of in-memory processing. NSE allows for cost-effective data management and storage optimization by placing less frequently accessed, non-volatile data on lower-cost, slower disk storage while maintaining seamless access and integration with the in-memory data. This capability supports scenarios where data is infrequently accessed but still needs to be readily available within the SAP HANA environment, without the need for external storage solutions like data lakes (B) or specialized hardware such as WORM devices (D).
References= SAP HANA documentation on data tiering options provides insights into how NSE works as an integral part of the data management strategy, focusing on cost-efficiency and resource optimization.
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