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Hurleyinnh

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07-19-2012
01:17 PM

I'm trying to determine what the requirements will be for me to deploy vCenter Operations Manager Enterprise 5.

How do you calculate the metrics generated? I have 6 vCenters in 4 locations, 2 in US, 2 international, with about 160 hosts running 2,400 vm's.

Is there a formula for this?

I don't want to build too small and need to be able to expand for about a total of 200 hosts or more in the future running maybe 3,000 vm's or more.

Thank you for some insight into this ... Jim

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admin

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07-19-2012
04:20 PM

You can use the following as an estimate: 1100 metrics/ host and 400 metrics / vm So, for 200 hosts and 3000 vms you will have (approximately) 220000 + 1200000 = 1.4 M metrics.

Hope that helps.

-dw

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admin

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07-19-2012
04:20 PM

You can use the following as an estimate: 1100 metrics/ host and 400 metrics / vm So, for 200 hosts and 3000 vms you will have (approximately) 220000 + 1200000 = 1.4 M metrics.

Hope that helps.

-dw

wharlie

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07-23-2012
03:36 PM

From "deployment and confiuration guide"

http://www.vmware.com/pdf/vcops-5-installation-guide.pdf

Each virtual machine has 250 to 300 metrics.

Each ESX host has 1,200 to 1,500 metrics.

*(*#*VMs x 300 metrics) + (*#Hosts* x 1,500 metrics) = total metrics*

* *

In your case:

2400 x 300 + 160 x 1500 = 960,000

Also for storage:

Assuming

Metric collection frequency (every 5 minutes)

Metric retention period (default of 6 months)

Metric storage requirement (16 bytes per metric)

Using these assumptions it is possible to determine the amount of storage capacity required. This is calculated as follows:

*(#Metrics x 12 collections per hour x 4320 hours x 16 bytes)/(1024^3) = Storage (GB)*

* *

It is possible to determine the amount of storage I/O required. This is calculated as follows:

*(#Metrics/300 sec per collection period) = Storage I/O (iops)*

* *

These metrics are related specifically to the use of vCops in conjunction with the vCenter Server adapter and do not include the use of additional external adapters. If there is a requirement to collect further data from additional adapters then there is a requirement to understand the total number of metrics this is likely to introduce. For example if a SCOM adapter were also introduced it may collect an additional 250 metrics per guest operating system that would need to be factored into the above equation.