5.1 Parallel access volume, HyperPAV, and SuperPAV5.1.1 Dynamic PAV tuning with z/OS Workload Manager5.1.2 HyperPAV5.1.3 RMF reporting on PAV5.1.4 PAV and HyperPAV in z/VM environments5.1.5 SuperPAV5.2 Multiple allegiances5.3 The Modified Indirect Data Access Word facility5.4 A caching algorithm that is optimized for IBM Z5.5 High-Performance FICON for IBM Z5.5.1 DFSORT using IBM Integrated Accelerator for Z Sort5.5.2 Db2 enhancements with zHPF5.5.3 Extended Distance and Extended Distance II5.5.4 Enhanced FICON Information Unit pacing5.6 Easy Tier5.6.1 Easy Tier Application5.6.2 Heat Map Transfer5.7 I/O priority queuing5.8 IBM zHyperWrite5.8.1 IBM zHyperWrite installation and enablement5.8.2 IBM zHyperWrite and IMS 155.9 DS8000 Copy Services performance considerations5.10 DS8000 storage system and I/O enhancements since IBM z145.10.1 FICON Multihop5.10.2 FICON Dynamic Routing5.10.3 Forward Error Correction5.10.4 Read Diagnostic Parameters for improved fault isolation5.10.5 IBM zHyperLink5.11 DS8000 I/O synergy with IBM z15: IBM Fibre Channel Endpoint Security5.12 IBM zEnterprise data compression5.13 Transparent Cloud Tiering