Hyper-V Replica Capacity Planner Report

This report summarizes the results found by running benchmarks on your deployment.

Title Description
Virtual Machines Displays the VMs and VHDs which were considered for replication
Processor Details of the CPU impact on the Primary, Replica, and Extended Replica servers/cluster
Memory Details of the Memory impact on the Primary, Replica, and Extended Replica servers/cluster
IOPS Details of the IOPS impact on the Primary, Replica, and Extended Replica storage subsystems
Storage Details of the Storage impact on the Primary, Replica, and Extended Replica storage subsystems
Network Details of the Network impact between the sites and provides network sizing requirements

Section 1: Deployment Input

Server Details

Description:This section captures details of the servers/clusters at each site

Primary SiteNameOS Version
Host NameKEMLABHV00Windows Server® 2012 R2
Replica SiteNameOS Version
Host NameKEMLABHV01Windows Server® 2012 R2
Extended SiteNameOS Version
Host NameKEMLABHV04Windows Server® 2012 R2

Virtual Machines

Description:This section displays the VMs, the VHDs, and the hosts that were considered for capacity planning

Host NameVirtual MachineVHD PathVHD Size
KEMLABHV00KEMLABR202D:\VHD\KEMLABR202.vhdx8.63 GB
KEMLABHV00KEMLABR202D:\VHD\KEMLABR202-01.vhdx196 MB
KEMLABHV00KEMLABR202D:\VHD\KEMLABR202-02.vhdx196 MB
KEMLABHV00KEMLABR202D:\VHD\KEMLABR203.vhdx676 MB
KEMLABHV00KEMLABR202D:\VHD\KEMLABR204.vhdx772 MB
KEMLABHV00KEMLABR202D:\VHD\KEMLABR205.vhdx580 MB

Section 2: Infrastructure requirements

Processor

Description:Details of the CPU impact on the Primary, Replica, and Extended Replica servers/cluster. For details on how to interpret the values shown, refer to subsection ‘2.1 Processor’, under the section ‘Understanding the report’ of the documentation

Host nameHost typeCPU Utilization before enabling HyperV ReplicaCPU Utilization after enabling HyperV Replica
KEMLABHV00PRIMARY1.91%4.91%
KEMLABHV01REPLICA - 3% Additional overhead
KEMLABHV04EXTENDED - 3% Additional overhead

Memory

Description:Details of the Memory impact (in GB) on the Primary, Replica, and Extended Replica servers/cluster. For details on how to interpret the values shown, refer to subsection ‘2.2 Memory’, under the section ‘Understanding the report’ of the documentation

Host nameHost typeTotal RAMAverage RAM usage before enabling replication(GB)Estimated RAM usage after enabling replication(GB)
KEMLABHV00PRIMARY3229.1930.15
KEMLABHV01REPLICA - - 3% Additional overhead
KEMLABHV04EXTENDED - - 3% Additional overhead

IOPS - Primary

Description:Details of the IOPS impact on the Primary storage subsystem. For details on how to interpret the values shown, refer to subsection ‘2.3 IOPS’, under the section ‘Understanding the report’ of the documentation

Host nameVirtual MachinePeak VM Write IOPSAverage VM Write IOPS before enabling replicationAverage VM Write IOPS after enabling replicationIOPS during initial replication
KEMLABHV00KEMLABR2024.60.951.234.75
TOTAL - - 0.951.23 -

IOPS - Replica

Description:Details of the IOPS impact on the Replica storage subsystem. For details on how to interpret the values shown, refer to subsection ‘2.3 IOPS’, under the section ‘Understanding the report’ of the documentation

Virtual MachineAverage VM Write IOPS after enabling replication (only latest point)Additional IOPS for supporting multiple recovery pointsAdditional IOPS for supporting extended replicationIOPS during initial replication
KEMLABR2020.950.950.283.8
TOTAL0.950.950.28 -

IOPS - Extended

Description:Details of the IOPS impact on the Extended Replica storage subsystem. For details on how to interpret the values shown, refer to subsection ‘2.3 IOPS’, under the section ‘Understanding the report’ of the documentation

Virtual MachineAverage VM Write IOPS after enabling replication (only latest point)Additional IOPS for supporting multiple recovery pointsIOPS during initial replication
KEMLABR2020.950.953.8
TOTAL0.950.95 -

Storage - Primary

Description:Details of the Storage impact (in GB) on the Primary storage subsystem. For details on how to interpret the values shown, refer to subsection ‘2.4 Storage’, under the section ‘Understanding the report’ of the documentation

Virtual MachineVHD Size (GB)Additional Storage during delta replication (GB)
KEMLABR20210.990
TOTAL10.990

Storage - Replica

Description:Details of the Storage impact (in GB) on the Replica storage subsystem. For details on how to interpret the values shown, refer to subsection ‘2.4 Storage’, under the section ‘Understanding the report’ of the documentation

Virtual MachineVHD Size (GB)Additional Storage during delta replication (GB)Additional Storage per recovery point (GB)
KEMLABR20210.9900.04
TOTAL10.9900.04

Storage - Extended

Description:Details of the Storage impact (in GB) on the Extended Replica storage subsystem. For details on how to interpret the values shown, refer to subsection ‘2.4 Storage’, under the section ‘Understanding the report’ of the documentation

Virtual MachineVHD Size (GB)Additional Storage during delta replication (GB)Additional Storage per recovery point (GB)
KEMLABR20210.9900.04
TOTAL10.9900.04

Network

Description:Details of the Network impact between the sites and provides network sizing requirements (in Mbps). For details on how to interpret the values shown, refer to subsection ‘2.5 Network’, under the section ‘Understanding the report’ of the documentation

AttributePrimary - ReplicaReplica - Extended
Estimated WAN bandwidth (Mbps)105
Observed network bandwidth (Mbps)892.83123.21
Ideal number of active parallel transfers *66
Total bandwidth needed for delta replication (Mbps)0.090.09

* Set this value on the key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Virtualization\Replication\MaximumActiveTransfers on every host machine and restart vmms service

Host nameVirtual MachineBandwidth required for replication (Mbps)
KEMLABHV00KEMLABR2020.09