5.8

Number of VCM
Managed Machines
RAID Channel and RAID Level Partitions Usable
Space
2001–5000 Channel 0 – RAID 1 OS 36GB
Collector Data
Files
113GB
Channel 1 – RAID 1 TempDB 227GB
Channel 2 – RAID 1 SQL Log Files 227GB
Channel 3 – RAID 0+1 (recommended) or
RAID 10
SQLData Files 456GB
Database Sizing for Managed vCenter Server Instances
Use the following requirements to plan the size of your SQLServer database depending on the number of
hosts and guests per vCenter Server managed by VCM. Guest collections include only the virtual machine
data that vCenter provides and do not include any in-guest data. In-guest collections are separate from
vCenter collections.
These requirements are in addition to the base VCM storage requirements, and are based on an estimated
10% data change per day times 15 days of data retention.
Hosts Guests Est. Daily Change Data Retention in Days Data Size
25 250 10% 15 3GB
50 500 10% 15 6GB
250 2500 10% 15 30GB
Table 1–8. VCMDatabase Sizing per vCenter Server Instance
The best practice in production environments is to have the Managing Agent process the requests for a
single vCenter Server. Dedicate one Managing Agent machine for each vCenter Server. In a single
vCenter Server instance environment, the VCM Collector can be the Managing Agent.
A single Managing Agent can manage multiple vCenter Server instances depending on your collection
schedules and when potential job latency is not an issue, such as when a single Managing Agent must
process multiple requests serially. A single Managing Agent can manage multiple vCenter Server instances
as long as only one vCenter Server is collected at a time.
When job latency is not a problem, and depending on your collection schedules, you might dedicate a
single Managing Agent for every five vCenter Server instances or 100 hosts. You could dedicate one
Managing Agent to a vCenter Server that manages 100 hosts, or a collection of four vCenter Server
instances that each manage 10 hosts could share a Managing Agent.
Sizing Impact on Software Edition Requirements
Use the total number of managed machines that you identified in "Determine the Size of Your
Environment" on page13 to locate your environment size: 1–1000, 1001–2000, 2001–5000, or more. If you
have more than 5000 machines in your environment, contact VMware Technical Support for your specific
requirements.
VCM supports Standard, Enterprise, and Datacenter editions of SQL Server 2008 R2, 2012, or 2014
versions.
Preparing to Install VCM
VMware, Inc.
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