Page 3 - Contents; Tables
Dell Power Center’s Power Policies for 12 th -Generation Servers iii Contents Executive Summary .................................................................................................... 5 Introduction ...........................................................................................
Page 5 - Executive Summary; Power Capping Based on Real-Time Power Measurement
Dell Power Center’s Power Policies for 12 th -Generation Servers 5 Executive Summary Dell OpenManage Power Center uses Intel Node Manager for real-time power monitoring and management on Dell 12 th -generation servers. IT administrators can set power capping values for individual servers as well as ...
Page 6 - Setting an Efficient Capping Value
Dell Power Center’s Power Policies for 12 th -Generation Servers 6 Setting an Efficient Capping Value It is important to set an efficient power cap value for each server. While setting the value too high is inefficient, setting the cap value too low will impact performance and prevent the server fro...
Page 7 - Power operation range and capping value; Power Center - Power operation range and capping value
Dell Power Center’s Power Policies for 12 th -Generation Servers 7 Power operation range and capping value Figure 1. Upper bound power: 350W Lower bound power: 100W Average power consumption: 200W Maximum power consumption: 220W Capping value: 280W Power supply maximum or face plate: 500W Power Cent...
Page 8 - Power Capping a Group of Servers; Static Capping; The power data is aggregated for group capping
Dell Power Center’s Power Policies for 12 th -Generation Servers 8 Power Capping a Group of Servers Power Center can Aggregate the Data and Set the Power Capping at any Group Level Power Center can aggregate power data from servers to provide power monitoring and capping at any group level. It provi...
Page 9 - Static capping in Power Center; Dynamic Capping
Dell Power Center’s Power Policies for 12 th -Generation Servers 9 Static capping in Power Center Figure 4. Group capping value Capping value for each server Dynamic Capping Due to changes in workload(s), the power demand of each individual server can vary greatly and static capping on an individual...
Page 10 - The power is dynamically adjusted among servers in a group
Dell Power Center’s Power Policies for 12 th -Generation Servers 10 servers; however, once excess power is available (known as headroom), the allocation of that power is distributed considering priority. Let’s look at an example: Group G1 with 3 servers: S1, S2 and S3, and the group capping is set a...
Page 11 - How to Set Power Policies using Power Center; Setting Static Policies; The power is dynamically adjusted among servers in a
Dell Power Center’s Power Policies for 12 th -Generation Servers 11 How to Set Power Policies using Power Center The administrator has the option to create multiple capping values and apply different capping values on the server at different times to optimize the use of power resources in the data c...
Page 12 - Setting the static policy type
Dell Power Center’s Power Policies for 12 th -Generation Servers 12 Setting the static policy type Figure 5. 600
Page 13 - Setting group capping value in static policy; Setting Dynamic Policies
Dell Power Center’s Power Policies for 12 th -Generation Servers 13 Setting group capping value in static policy Figure 6. Group capping value Capping value for each server Setting Dynamic Policies Figure 7 illustrates that when setting the dynamic policy, the user is asked to set the priority for e...
Page 14 - Setting priorities in dynamic policy
Dell Power Center’s Power Policies for 12 th -Generation Servers 14 Setting priorities in dynamic policy Figure 7. The power cap is dynamically distributed based on the priority The main purpose of a dynamic policy is to maintain the group budget and to balance the power resources to optimize the pe...
Page 15 - Managing Power Policies; View, manage, and mitigate all power policies from one place; Power Provisioning Using Real-Time Versus Nameplate Data
Dell Power Center’s Power Policies for 12 th -Generation Servers 15 Managing Power Policies Power Center provides the aggregated data for power monitoring at the group, rack, row, or room level, or an entire data center. Based on the group hierarchy and power monitoring, users can set the appropriat...
Page 16 - Using Power Policies for Emergency Management
Dell Power Center’s Power Policies for 12 th -Generation Servers 16 Hence, power over-provisioning is a common issue in power management when using the nameplate instead of the actual measured power usage values. It is also one of the best and easier ways to first address power utilization in the da...
Page 17 - Power consumption is reduced due to EPR; Setting a Low or Untenable Power Cap on the Server
Dell Power Center’s Power Policies for 12 th -Generation Servers 17 minimize the power usage of all the servers in a rack. From the Power Center user interface, the user navigates to the physical-based group of that rack in Power Center and then applies the EPR feature to it. Note that EPR is not me...
Page 18 - Peak Power Reporting and Power Capping; Maximum power consumption spikes above the capping value
Dell Power Center’s Power Policies for 12 th -Generation Servers 18 Peak Power Reporting and Power Capping Power Center measures and reports the power consumption data, including the minimum, maximum and average power consumption of servers, and presents them on graphs at each sampling period; for e...
Page 19 - Using iDRAC in Conjunction with Power Center; Conclusion; References; Software
Dell Power Center’s Power Policies for 12 th -Generation Servers 19 Using iDRAC in Conjunction with Power Center Dell iDRAC7 Enterprise is also a tool for monitoring and setting the power capping for an individual server. If both Power Center and iDRAC are used for setting the power cap, there is th...