5.7

Table 2-1. Aggregate Requirements for the two virtual machines in the vCenter Operations Manager vApp
(Continued)
Monitored Resources
Up to 1,500
Virtual
Machines Up to 3,000 Virtual Machines Up to 6,000 Virtual Machines
Disk Storage 900GB
n
UI VM:
100GB
n
Analytics
VM: 800GB
1.8TB
n
UI VM: 200GB
n
Analytics VM: 1.6TB
3.6TB
n
UI VM: 400GB
n
Analytics VM: 3.2TB
Disk I/O for Analytics VM 1,500 IOPS 3,000 IOPS 6,000 IOPS
NOTE The disk size that is allocated does not change based on the size of the vApp. For larger deployments,
you need to add additional disks. See “Add a Hard Disk to a Virtual Machine,” on page 34 for more
information.
Configuration Assumptions
n
Each CPU is at least 2 GHz.
To arrive at the number of metrics for each configuration, VMware assumes the following parameters for your
environment:
n
The VMware vCenter adapter is the only adapter running and collecting metrics.
n
Each virtual machine has 250 to 300 metrics.
n
Each ESX host has 1,200 to 1,500 metrics.
n
The virtual machine to ESX host ratio is ten to one.
The number of metrics collected for each configuration determines the requirements for vCPU, Memory, Disk
Storage and Disk I/O. The number of virtual machines is provided as a starting point to guide you through the
sizing of your deployment. If your environment deviates from the assumptions specified, the number of metrics
and requirements will vary.
Environments with a large number of datastores that are connected to many ESX hosts or that are running
non-vCenter adapters, all contribute to significantly larger number of metrics for a given configuration. If the
actual number of metrics is higher than the specified for a given virtual machine count, resize the deployment
by linearly extrapolating the vCPU, Memory, Disk Storage and Disk I/O requirement to align with the actual
metric count.
For example, if you have a environment with 1,500 virtual machines, and generate one million metrics,
configure the size of the environment as you would a 1.2 million metric configuration.
vCenter Server and ESX Requirements
The vCenter Operations Manager vApp requires the following vSphere environment.
vCenter Operations Manager is compatible with:
n
System that serves as the target of data collection: VMware vCenter Server 4.0 U2 or later
n
System running the vApp: VMware vCenter Server 4.0 U2 or later
n
Host running the vApp: ESX/ESXi 4.0 or higher
vCenter Server includes a service called VMware VirtualCenter Management Webservices.
vCenter Operations Manager requires vCenter Server to run this service.
vApp Deployment and Configuration Guide
14 VMware, Inc.