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This topic presents some examples of calculation for each supported UoM in Chargeback for BMC Cloud Lifecycle Management. It also shows an illustration of OOTB UoMs in BMC Cloud Lifecycle Management 3.1, and their corresponding BMC Capacity Optimization metrics.

For more information, refer to the sections that follow.

UoM units and calculations

This section illustrates examples of calculations for the following BMC Cloud Lifecycle Management UoMs present in Chargeback for BMC Capacity Optimization:

INSTANCE units and calculations

Example 1

UoM

INSTANCE

Price

200 USD / Instance / Month

SOI period

SOI starts on: July 15, 10:00 AM

Consumption

Number of hours of SOI allocated (also when the VM is powered OFF, and NOT depending on the number of VMs deployed) is calculated as:

  • Consumption for July: 16 days and 14 hours =
    16 x 24 + 14 = 398 hours

Charge

  • Price per Instance =
    (Price) / [ (No. of days in July) x (No. of hours in a day) ]
    = 200 / (31 * 24) = 0.2689 / Instance Hour
  • Total charge for the July =
    (Price per Instance) x (Consumption for July)
    = 0.2689 x 398
    = 106.989 USD
Example 2

UoM

INSTANCE

Price

150 USD / Instance / Month

SOI period

SOI starts on: September 1

Consumption

Number of hours of SOI allocated (also when the VM is powered OFF) is calculated as:

  • Consumption for September: 30 days

Charge

  • Price per Instance =
    (Price) / (No. of days in September)
    = 150 / 30
    = 5.00 / day
  • Total charge for September =
    (Price per Instance) x (Consumption for September)
    = 5 x 30
    = 150.00 USD

CPU units and calculations

Example 1

UoM

CPU Avg Usage GHz

Price

1 USD / CPU Avg Usage GHz / Day

Utilization

Hourly Average CPU Utilization in GHz is calculated as:

  • Hourly Average CPU Utilization: 1 vCPU@3 GHz used at 50% every hour in one day = 1.5 GHz

Consumption

Aggregated (SUM) of the hourly average for 24 hours in one day (none when VM is powered OFF). It is calculated as:

  • Consumption for 1 day =
    (Hourly Average CPU Utilization) x (No. of hours in 1 day)
    = 1.5 x 24
    = 36 GHzHour

Charge

  • Price per GHz Hour =
    (Price) / (No. of hours in 1 day)
    = 1 / 24
    = 0.0416/GHzHour
  • Total charge for 1 day =
    (Consumption for 1 day) x (Price per GHz Hour)
    = 36 x 0.0146
    = 1.5 USD
Example 2

UoM

CPU Count

Price

5 USD / CPU Count / Day

Utilization

Hourly Number of CPUs (logical or virtual, NOT physical CPUs). It is calculated as:

  • Hourly Number of CPUs: 2 vCPUs for every hour in the day

Consumption

Aggregated (SUM) of number of CPU for 24 hours in 1 day (also when the VM is powered OFF). It is calculated as:

  • Consumption for 1 day =
    (Hourly Number of CPUs) x (No. of hours in 1 day)
    = 2 x 24
    = 48 vCPUsHour

Charge

  • Price per vCPUsHour =
    (Price) / (No. of hours in a day)
    = 5 / 24
    = 0.2084
  • Total charge for the day =
    (Consumption for 1 day) x (Price per vCPUsHour)
    = 48 x 0.2084
    = 10 USD

Network units and calculations

Example 1

UoM

Network GB Upload

Price

5 USD / Network GB Upload
Note: Period is irrelevant for this UoM, and the Price is for 'per GB of data sent'.

Utilization

Hourly Average Network send rate in GB/Hour. It is calculated as:

  • Hourly Average Network send rate: 10Mbit/sec used at 1% every hour
    in the day for OUT traffic = 0.0439 GB/hour

Consumption

Aggregated (SUM) of the hourly average for the 24 hours in a day (none when the VM is powered OFF). It is calculated as:

  • Consumption for 1 day =
    (Hourly Average Network send rate) x (No. of hours in 1 day)
    = 0.0439 x 24
    = 1.054 GB sent

Charge

  • Total charge for the day =
    (Consumption for 1 day) x (Price per GB of data sent)
    = 1.054 x 5
    = 5.27 USD

Uptime units and calculations

Example 1

UoM

Uptime

Price

1.2 USD / Uptime / Day

SOI period

During the day, the VM has been powered ON from 10:00 AM to 2:00 PM.

Consumption

Number of hours of VM powered ON is calculated as:

  • Consumption for the day: (No. of hours between 10:00 AM and 2:00 PM)
    = 4 Hours

Charge

  • Price per Instance =
    (Price) / (No. of hours in a day)
    = 1.2 / 24 = 0.05 USD
  • Total charge for the day =
    (Price per Instance) x (Consumption for day)
    = 0.05 x 4
    = 0.2 USD

Memory units and calculations

Example 1

UoM

Allocated Memory GB

Price

1 USD / Allocated Memory GB / Day

Utilization

Hourly Memory Allocated in GB = 4GB

Consumption

Aggregated (SUM) of memory allocated for 24 hours in a day (also when the VM is powered OFF). It is calculated as:

  • Consumption for 1 day =
    (Hourly Memory Allocated) x (No. of hours in 1 day)
    = 4 x 24
    = 96 GB Hour

Charge

  • Price per GBHour =
    (Price) / (No. of hours in 1 day)
    = 1 / 24
    = 0.04167
  • Total charge for the day =
    (Consumption for 1 day) x (Price per GBHour)
    = 0.04167 x 96
    = 4 USD
Example 2

UoM

Memory Avg Usage GB

Price

1 USD / Memory Avg Usage GB / Day

Utilization

Hourly Average Mem Utilization in GB.
For example: 4 GB used at 50% every hour in the day

Consumption

Aggregated (SUM) of the hourly average for the 24 hours in a day (none when the VM is powered OFF). It is calculated as:

  • Consumption for 1 day =
    (Hourly Average Mem Utilization) x 50% x (No. of hours in 1 day)
    = 4 x 50% x 24
    = 48 GBHour

Charge

  • Price per vGBHour =
    (Price) / (No. of hours in 1 day)
    = 1/24
    = 0.04167
  • Total charge for the day =
    (Consumption for 1 day) x (Price per vGBHour)
    = 48 x 0.04167
    = 2 USD

Storage units and calculations

Example 1

UoM

Allocated Storage GB

Price

0.5 USD / Allocated Storage GB / Month

Utilization

Hourly Storage allocated in GB.
For example: 500GB for every hour in the month (month of 31 days).

  • Total Hourly Storage allocated =
    500 x 24
    = 12000

Consumption

Aggregated (SUM) of storage allocated for 31 days in a month (also when the VM is powered OFF). It is calculated as:

  • Consumption for 31 days =
    (Total Hourly Storage allocated) x (No. of days)
    = 12000 x 31
    = 372000 GBHour

Charge

  • Price per GBHour =
    (Price) / (No. of hours in a day) x (No. of days)
    = 0.5 / (24 * 31)
    = 0.00067205
  • Total charge for the month =
    (Consumption for 31 days) x (Price per GBHour)
    = 372000 x 0.00067205
    = 250 USD
Example 2

UoM

Storage Avg Usage GB

Price

0.05 USD / Storage Avg Usage GB / Day

Utilization

Hourly Average Storage Utilization in GB.
For example: 500GB used at 10% every hour in the day.

  • Total Hourly Average Storage Utilization allocated =
    500 x 24
    = 12000

Consumption

Aggregated (SUM) of the hourly average for the 24 hours in a day (also when the VM is powered OFF). It is calculated as:

  • Consumption for 1 day = 1200 GBHour

Charge

  • Price per GBHour = 0.05 / 24 = 0.002084
  • Total charge for the day =
    (Consumption for 1 day) x (Price per GBHour)
    = 1200 x 0.002084
    = 2.5 USD

Related topics

Understanding Chargeback for BMC Cloud Lifecycle Management

Supported platforms and UoM mapping