SAP HANA 2.0 Administration · Data Tiering: Persistent Memory, NSE & Extension Nodes

Before manually marking columns page-loadable in HANA NSE, why run the NSE advisor first, and what does it base its recommendations on?

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More in Data Tiering: Persistent Memory, NSE & Extension Nodes

A team expects persistent memory to speed up their write-heavy HANA workload. Why is that the wrong expectation, and what does the DRAM/PMEM split actually optimize?

A customer wants to add persistent memory to an existing HANA appliance with DRAM populated on only some channels. Which prerequisites block this, and which one is the easy-to-miss planning trap?

You run ALTER TABLE ... PERSISTENT MEMORY on a large partitioned HANA table during business hours. Which option avoids an immediate cost spike, and what does CASCADE change that the others don't?

You set PERSISTENT MEMORY ON at the table level but want one column excluded. Does HANA's level hierarchy allow that, and what does DEFAULT actually mean?

What is the one defining property of HANA Native Storage Extension (NSE) that distinguishes it from normal column loading, and why does it shrink the memory footprint?

You're deciding whether a large rarely-queried column should be COLUMN LOADABLE or PAGE LOADABLE in HANA NSE. What's the single trade-off, and how risky is getting it wrong?

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