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manual abstract
System Sizing Guidelines
for Integrity Virtual Machines Deployment
Hardware Consolidation with Integrity Virtual Machines
Isom Crawford, HP BCS
A Technical White Paper from HP
Introduction ......................................................................................................................................... 3
Using Integrity Virtual Machines for Hardware Consolidation .................................................................... 3
Identifying Workloads Suitable for Hardware Consolidation ................................................................. 4
Preparing for Consolidation - Utilization Reconnaissance .......................................................................... 5
Peaks and Averages ......................................................................................................................... 5
Data Collection Tools........................................................................................................................ 6
HP Operations Center‟s Performance Agent and GlancePlus ............................................................. 6
HP Capacity Advisor .................................................................................................................... 6
Calculating Platform Utilization .............................................................................................................. 7
Expected Platform Utilization ............................................................................................................. 7
Expected Utilization Example ............................................................................................................ 8
Expected CPU Utilization ............................................................................................................... 8
Expected I/O Utilization ............................................................................................................... 8
Extending the Utilization Calculations ................................................................................................. 8
Consolidation Considerations and Utilization Goals ................................................................................ 9
Utilization Thresholds ........................................................................................................................ 9
Aggressively Increasing Hardware Utilization .................................................................................... 10
Analyzing the Capacity of the Target System ........................................................................................ 11
Mass Storage Requirements for Integrity VM...................................................................................... 11
VM Host System Configuration for Optimal Memory Utilization ........................................................... 11
Virtual Memory Base Page Size ................................................................................................... 11
File Cache Size .......................................................................................................................... 12
Inode Caches ............................................................................................................................. 12
Memory Requirements for the VM Host ............................................................................................. 12
Additional Memory Requirement for I/O Adapters on Integrity i2 Servers ......................................... 12
Storage Requirements for each Virtual Machine ............................................................................. 13
Calculating the Virtual Machine Capacity of an Existing Server ........................................................... 13
VM Host Memory and Storage Sizing Example .............................................................................. 13
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