Calculation of Recommendations

In this section you will learn how VirtualMetric calculates the recommendation under analysis.

CPU Recommendation

The CPU recommendation report shows the CPU usage of devices and the recommendations provided.

VM

Metric Name	Calculation	Statistical Operation
CPU Limit (MHz)	Max Clock Speed * Processor Count * CPU Maximum / 100	MAX
CPU Usage (MHz)	(Max Clock Speed * Processor Count * CPU Maximum / 100) * Cpu Usage MHZ Percent/100	AVG
Recommended (MHz)	1.0 / 0.6 * Avg CPU Usage
Reclaimed (MHz)	Max CPU Limit - Recommended Limit MHz
Recommendation	◆ If Max CPU Limit - Recommended = 0 No Change ◆ If Max CPU Limit > Recommended Decrease ◆ If Max CPU Limit < Recommended Increase

VMWare & Host

Metric Name	Calculation	Statistical Operation
CPU Limit (MHz)	Max Clock Speed * Processor Count	MAX
CPU Usage (MHz)	Average of Cpu Usage	AVG
Recommended (MHz)	1.0 / 0.6 * Avg CPU Usage
Reclaimed (MHz)	Max CPU Limit - Recommended Limit MHz
Recommendation	◆ If Max CPU Limit - Recommended = 0, No Change ◆ If Max CPU Limit > Recommended, Decrease ◆ If Max CPU Limit < Recommended, Increase

Memory Recommendation (VM, VMWare, Host)

The memory recommendation report shows the memory usage of devices and the recommendations provided.

Metric Name	Calculation	Statistical Operation
Current Memory	Memory Capacity	AVG
Memory Usage	Memory Usage	AVG
Recommended (MB)	1.0 / 0.6 * Avg CPU Usage
Reclaimed (MB)	Memory Capacity - Recommended Limit
Recommendation	◆ If Memory Capacity - Recommended Limit = 0, No Change ◆ If Memory Capacity > Recommended Limit, Decrease ◆ If Memory Capacity < Recommended Limit, Increase

Powered off Report (VM, VMWare, Host)

The power-off report shows inactive devices and how long they have been offline.

Metric Name	Calculation	Statistical Operation
Duration	Current Date - Power Off Since
Powered Off Since	Epoch	◆ When counter value returns 0, MAX ◆ When counter value returns 1, MIN
Used Disk (MB)	Storage Used	MAX
Provisioned Disk (MB)	Total Storage	MAX

All of the powered off reports have one common condition: State = 'Off' and Record Status > 0 and Since off > 0

Idle Report (VM, VMWare, Host)

This report displays the idle machines in the environment. VirtualMetric checks the data from the last 14 days, and, if the ratio of hosts on a machine with

• an average CPU use below 100 MHz -or-

• an average IO use below 20 KB/s -or-

• an average network use below 1 KB/s

is greater than 90%, then it flags that machine as idle on the report.

Metric Name	Calculation	Statistical Operation
Duration	Current Date - Date of Idle
Current CPU	Avg CPU	AVG
Memory Used	Storage Used	MAX
Memory Capacity	Total Storage	MAX
Used Disk (MB)	Consumed Memory	MAX
Disk Capacity (MB)	Total Memory	MAX

All idle reports have one common condition: State = 'Running' and RecordStatus > 0