2.1 Power AC922 server architecture2.2 Processor subsystem2.2.1 POWER9 processor overview2.2.2 Processor features2.2.3 Supported technologies2.2.4 Processor feature codes2.3 Memory subsystem2.3.1 Memory feature codes and placement rules2.3.2 Memory bandwidth2.4 I/O subsystem2.4.1 PCI Express Controller2.4.2 IBM CAPI22.4.3 OpenCAPI2.4.4 The NVIDIA Tesla V1002.4.5 NVLink 2.02.5 PCI adapters2.5.1 Slot configuration2.5.2 Local area network adapters2.5.3 Fibre Channel adapters2.5.4 CAPI-enabled adapters2.5.5 Compute-intensive accelerators2.5.6 Flash storage adapters2.6 System ports2.7 Internal disks2.7.1 Disk and media features2.8 External I/O subsystems2.9 Location codes2.10 IBM System Storage2.10.1 IBM Flash Storage2.10.2 Software-defined storage2.10.3 Hybrid storage2.10.4 Storage area network2.11 Operating system support2.11.1 Ubuntu2.11.2 Red Hat Enterprise Linux2.12 Java2.13 Reliability, availability, and serviceability2.13.1 Error handling2.13.2 Serviceability