3.1 Virtual persistent memory3.1.1 SAP HANA usage of vPMEM volumes3.1.2 Sizing the vPMEM volume3.1.3 Checking the LPAR hardware assignment3.1.4 Creating a vPMEM device3.1.5 vPMEM affinity configuration options3.1.6 Affinity disabled3.1.7 Enabling vPMEM use in Linux3.1.8 Configuring SAP HANA to use vPMEM volumes3.1.9 Specifying tables, columns, or partitions to use vPMEM volumes3.1.10 Undersized vPMEM volumes3.1.11 Disabling the usage of vPMEM volumes3.1.12 Benefits of using vPMEM volumes on Power Systems servers3.1.13 vPMEM usage considerations3.1.14 PowerVM vPMEM enablement dependencies3.1.15 vPMEM-related SAP Notes3.1.16 Additional documentation that is related to vPMEM and persistent memory usage with SAP HANA3.2 RAM disk (temporary file systems): SAP HANA Fast Restart Option3.2.1 Configuring tmpfs volumes3.2.2 Configuring SAP HANA to use the tmpfs volumes3.2.3 Comparing vPMEM and tmpfs3.2.4 SAP-related documentation3.3 Persistent disk storage by using native Non-Volatile Memory Express devices3.3.1 NVMe device details3.3.2 Configuration and usage considerations3.3.3 NVMe performance characteristics3.3.4 Striping effects for internal NVMe cards3.3.5 Summary3.4 NVMe Rapid Cold Start Mirror3.4.1 Hybrid mirrored volume3.4.2 Summary3.5 Comparing vPMEM to Intel Optane3.6 Impact to Live Partition Mobility capabilities