z⁄VM Education - Unit 16 - SSI & LGR Performance Topics(SSI) - Part 3

This video explains performance implications using z/VM Single System Image (SSI) and Live Guest Relocation (LGR). Metrics like Quiesce Time (QT) and Relocation Time (RT) are explained and factors that affect performance using SSI and LGR are reviewed in detail.

Chapters: 0:00 - Introduction 1:27 - Background and review 3:25 - Live Guest Relocation - Key Performance Metrics 6:26 - LGR: Factors affecting Quiesce Time and Relocation Time 9:56 - LGR: Serial vs. Concurrent Relocations 10:51 - Effect of Serial vs. Concurrent on Quiesce Time 12:47 - Effect of Serial vs. Concurrent on Relocation Time 14:16 - Effect of IMMEDIATE option on Relocation Time 15:14 - VMRELOCATE Options Summary 15:57 - Background on ISFC Capacity Test 19:27 - Effect of CTC Bandwidth on LGR 21:31 - Effect of Virtual Machine Size on LGR 22:24 - Impact of Virtual Machine Changing Memory on LGR 24:05 - LGR: CPU and Memory Use Habits 25:05 - Effect of System Memory Constraint on LGR 28:23 - Effect of LGR on Existing Workloads 31:44 - LGR: Things to Keep in Mind 33:22 - SSI: ISFC Logical Link Configuration Best Practices 35:07 - SSI: ISFC Logical Link Write Scheduling, under the covers 36:34 - SSI Workload Distribution Measurements 37:30 - SSI Distribution: CPU Constrained Measurement 39:35 - SSI Distribution: Virtual I/O Constrained Measurement 40:27 - SSI Distribution: Memory Constrained Measurement 40:41 - SSI Scaling Measurements 42:31 - SSI Transition Measurement 43:37 - SSI: Performance Toolkit, Considerations 44:52 - SSI: MONWRITE Considerations 45:03 - SSI: Dump and PMR Considerations 45:19 - SSI and LGR: Planning White Space 46:37 - Relocation Planning: Other Considerations 47:54 - Summary

Materials: z/VM SSI & LGR Performance Topics Presentation - https://www.vm.ibm.com/education/roadmaps/ssi-perf.pdf z/VM SSI & LGR Performance Report - https://www.vm.ibm.com/perf/reports/zvm/html/620lgr.html