Technical Whitepaper Using OpenManage Enterprise Power Manager for Chargeback Abstract This technical white paper provides information about the best practices that you can follow using Dell EMC OpenManage Enterprise Power Manager Plugin 1.2 to optimize the usage of Dell EMC servers and chassis for power cost reduction and efficient budget.
Revisions Revisions Date Description September 2020 Initial Release of Power Manager 1.2 Acknowledgements This technical white paper is produced by the following members of the Dell EMC Server Engineering Team. Author(s) Ashish Singh, Test Engineer 1, Enterprise Software Validation Support Mahendran P, Test Senior Engineer, Enterprise Software Validation Shruthi Ravoor, Technical Content Developer 2, Dell – Info-Dev The information in this publication is provided “as is.” Dell Inc.
Table of contents Table of contents Revisions............................................................................................................................................................................. 2 Acknowledgements ............................................................................................................................................................. 2 Table of contents ...............................................................................................
Acronyms Acronyms 4 Acronym Expansion CMC Chassis Management Controller CPU Central Processing Unit EPR Emergency Power Reduction GUI Graphical User Interface iDRAC Integrated Dell Remote Access Controller I/O Input Output OME OpenManage Enterprise OME-M OpenManage Enterprise-Modular RAM Random Access Memory REST Representational State Transfer SSB Small Scale Business VM Virtual Machine PMP OME Power Manager Plugin CUPs Compute Usage per second Using OpenManage Enterprise P
Executive Summary Executive Summary This technical whitepaper provides an overview about how to use Power Manager effectively to control and limit power costs for an organization. It discusses in detail about how to effectively make use of the Power Manager features to: • • • • 5 Reduce cost spent on power consumption, Reduce carbon footprint, Optimize budgeting for power and Auditing the power bills against the actual consumption obtained from monitoring devices in a data center.
Introduction 1 Introduction Power Manager is a plugin to Dell EMC OpenManage Enterprise console and uses fine-grained instrumentation to provide increased visibility over power consumption, anomalies, and utilization. Also, Power Manager alerts and reports on power and thermal events with servers, chassis, and groups consisting of servers and chassis. This enables increased control, faster response times, greater accuracy, and broader decision-making intelligence than would otherwise be possible.
Using Power Manager Reports to Determine Power Costs 2 Using Power Manager Reports to Determine Power Costs The primary focus of this paper is to determine the actual power consumed by servers and chassis inside a datacenter and infer this data to identify the overall power costs for a data center. After installing Power Manager on OpenManage Enterprise, a list of pre-canned or built-in reports are available.
Using Power Manager Reports to Determine Power Costs Setting report duration in Power Manager After the report duration is set, run the reports after a month. 2.1 Finding Power Consumption and Power Cost for Devices Run the report Power Manager: Power and Thermal Report of Devices. This report contains all metric collection instances (based on metric collection interval set by you in the Power Manager Settings tab).
Using Power Manager Reports to Determine Power Costs Metric report downloaded for 1-month report duration To calculate total consumption for this device [ABCDEFG], add all the energy consumed metric available in the Total Energy Consumed column as shown in the above screenshot from the beginning of the metric duration, that is a month’s data. To find energy consumption for all devices in this duration (1 month), directly perform an aggregate of column K (Total Energy Consumed).
Finding Zombie Servers inside a datacenter 3 Finding Zombie Servers inside a datacenter There may be devices that keep consuming power irrespective of the amount of workload or payload that it processes for computing. Such servers are referred to as zombies that heavily affect the power costs incurred in a datacenter. To detect such servers, compare CPU, I/O, memory utilization (CUPs) against power utilization.
Pro-Rata Power Budgeting 4 Pro-Rata Power Budgeting An organization consists of multiple sub-organizations, and power costs are generally divided equally as part of the operating income. For example, there is a sub-organization SO-A, and SO-B. If SO-A consumes 90% of the power and SO-B consumes only 10%, you cannot bill them equally when they have consumed different amount of power. Hence, both the sub-organizations must be billed based on the amount of power consumed by them respectively.
Pro-Rata Power Budgeting Creating a custom power and thermal report 1 Select Power Manager Devices while creating the report 12 Using OpenManage Enterprise Power Manager for Chargeback
Pro-Rata Power Budgeting Select a group to create the report 13 Using OpenManage Enterprise Power Manager for Chargeback
Pro-Rata Power Budgeting Select Energy Consumption metric, Report Duration as 1 Month and Aggregation Period as Daily 14 Using OpenManage Enterprise Power Manager for Chargeback
Pro-Rata Power Budgeting Run the report for the selected group After running the report, download the report to a CSV or Excel format file and aggregate the values as depicted in section 2.1 to find out the Energy Consumption by the devices of this group. Similarly, repeat the steps for all the groups to find out energy consumption for each group.
Conclusion 5 Conclusion Data center power costs is one of the major problems faced by all IT industries, because the cost of running a datacenter and cooling it, not only puts substantial load on the budget and also increases the carbon footprint if not managed properly. In such a scenario it is important for you to buy a product that can help manage, distribute and optimize power costs.
Technical Support and Resources 6 Technical Support and Resources • • 6.1 Related Resources • • • • • 17 Dell.com/support is focused on meeting customer needs with proven services and support. To watch quick and short videos about handling the PowerEdge server components, visit the QRL video website. Knowledge Base for Dell EMC OpenManage Enterprise HTML Knowledge Base for Dell EMC OpenManage Enterprise Power Manager and Power Center HTML Dell EMC OpenManage Enterprise Power Manager Version 1.
