Optimizing Performance Per Watt with Dell PowerEdge XR ServersDownload PDF
Thu, 17 Aug 2023 18:45:13 -0000|
Read Time: 0 minutes
With power and cooling costs accounting for increasingly large portions of IT budgets, IT departments looking to minimize total cost of ownership (TCO) are making power efficiency a priority when choosing server hardware. This white paper will examine the power efficiency of Dell Edge servers in the multi-node, 2U form factor, a form factor that is one of the most popular in many Edge and Telecom use cases because of the balance it strikes between density and expandability. This white paper will present and analyze power efficiency results for several Dell current-generation PowerEdge XR servers and also illustrate how those results compare on various parameters with a prior-generation Dell Edge server.
The environmental conditions for telecom edge computing are typically vastly different than those at centralized data centers. Telecom edge computing sites might, at best, consist of little more than a telecommunications closet with minimal or no HVAC. Thus, ruggedized, front-access servers are ideal for such deployments. The Dell PowerEdge servers checks all of the boxes.
Dell Technologies commissioned Tolly to evaluate the power efficiency of Dell’s XR8000, XR4000, XR5610, and XR11 servers using the industry standard Standard Performance Evaluation Corporation (SPEC) SPECPower benchmark and compare those to each other. The SPECPower benchmark measures server-side Java (SSJ) throughput and system power consumption. The benchmark calculates SSJ operations per watt of system power consumed. All analysis was based on public data submitted to the SPEC and published on their website.
The Dell PowerEdge XR8000, XR4000, XR5610, and XR11 are all highly-capable edge servers but offer customers different options with respect to form factor, CPU specifications, and power efficiency/cost. The following summary tables provide insights into the value each offers from a different perspective of performance, cost, and energy usage.
The first table, below, summarizes the raw performance results calculated by SPECPower. As one would expect, the newer systems deliver higher performance per watt the older systems. The XR5610 and XR11 were measured on 32 cores where the other two systems were measured on 64 cores.
Table 1. SPECPower - Performance/Watt
The second table, below, analyzes results on a “per core” basis as the various Dell systems have either 32 or 64 cores. The XR4000 results are 26% higher than the XR11 results, the XR8000 results are 42% higher than the XR11, and the XR5610 results are 62% higher than the XR11 roughly tracking the results shown in the previous table for the entire systems.
Table 2. SPECPower - Performance/CPU Core
The third table, below, calculates watts consumed per CPU core without reference to performance.The XR4000 and the XR11 results are within 2% of each other. The XR8000 results are13% better than the XR11 and the XR5610 results are 7% better than the XR11. Note that the XR11 is powered by an Intel 3rd Gen Xeon SP CPU while the XR4000 is powered by an Intel Xeon-D CPU.
Table 3. SPECPower - Watts/CPU Core
The fourth table, below, factored in the cost of the CPU into the perf/watt equation. Thus, lower cost CPUs will have higher values in this table when the raw performance is the same as higher cost CPUs. The XR4000 results are 120% better than the XR11 results, the XR8000 results are 110% better than the XR11, and the XR5610 results are 104% better than the XR11.
Table 4. SPECPower - Perf/Watts/CPU Cost
The fifth table, below, provides links to details of each of the CPUs evaluated.
Table 5. Dell PowerEdge Server Systems - Intel CPU Detail Links
Intel Reference Link
Dell PowerEdge XR8000 (XR8620T) & Dell PowerEdge 5610
Intel Xeon Gold 6421N, 1.80 GHz
Dell PowerEdge XR4000
Intel Xeon D-2776NT, 2.10 GHz
Dell PowerEdge XR11
Intel Xeon Gold 6338N, 2.2 GHz
Based on the publicly available data from spec.org/power, we can see high capacity data intensive workload targeted HPE and Supermicro servers. Although these are not direct competitors to Dell PowerEdge XR servers, it is worthwhile to note that the perf/watt/CPU$ for XR8000 is better than both HPE ProLiant DL360 Gen11 (Intel Xeon Platinum 8480+ 2.0 GHz), HPE ProLiant DL380 Gen 1 (Intel Xeon Platinum 8480+ 2.0 GHz), as well as the Supermicro SYS-621C-TN12R (Intel Xeon Platinum 8490H 1.90GHz).
Dell XR servers provide solutions for various edge workloads in a short form factor, edge optimized with power efficiency consideration taken into account.
Dell created Multi-Vector Cooling (MVC) to maximize the potential of air cooling. It includes control algorithms, thermal and power sensors, component mapped fan zoning and airflow channeling shrouds to balance and intelligently direct airflow across the systems’ components.
New high-performance fans and heatsinks, as well as special airflow-optimized configurations, ensure even high-power CPUs are supported without throttling.
For more information, go to https://www.dell.com/en-us/blog/better-ways-to-cool-your-poweredge-servers, read this “Direct from Development” (DfD) note https://infohub.delltechnologies.com/p/understanding-thermal-design-and-capabilities-for-the-poweredge-xr8000-server, or view a video on the topic at: https://www.youtube.com/watch?v=-rHEXJsX75Y&ab_channel=DellTechnologies.
Telecom Edge Computing
Wireless telecom providers world-wide have at least two things in common: seemingly endless growth, and the rapid migration from specialized, proprietary radio access network (RAN) hardware to scalable, software-based vRAN solutions. Over two dozen system operators and nearly 300 related companies and academic institutions are part of the Open RAN Alliance (O-RAN) working together to bring an open solution to the industry.
The telecom edge, thus, needs ruggedized servers built to resist demanding environmental conditions while delivering significant compute power with cost-efficient use of electric power.
Dell, an acknowledged information technology leader, builds servers that are designed for both the processing requirements and physical deployment requirements of edge servers with a particular focus on telecom applications. In particular, the Dell PowerEdge XR8000 and Dell PowerEdge XR4000 edge servers provides a powerful and flexible selection of configurations focused on the particular needs of the telecom edge.
- Built to withstand extreme heat & dust; operating temperature range from -5 to 55C
- Efficient use of electric power
- Suitable for shock and vibration of factory floors & construction site
- Can be deployed in distributed telecom and other extreme environments
- Short depth (355mm), small form factor
- Ruggedized; tested for NEBS and MIL-STD
- Multi-node capable
PowerEdge XR4000: Scalability and Flexibility with HCI Capabilities
The Dell PowerEdge XR4000 Edge Server is part of Dell’s family of purpose-built, ruggedized servers. The PowerEdge XR4000 is built for environments like telecom edge deployment or factory floors where the servers could be subjected to demanding conditions including high temperatures, dust, shock and vibrations.
The high-performance, multinode XR4000 server was purpose built to address the demands of today’s retail, manufacturing and defense customers. It was designed around a unique chassis and compute sled(s) concept. The actual computer resides in modular 1U or 2U sled form factors. The only shared component between the sleds is power. The server is also designed to support hyperconverged infrastructure (HCI).
The XR4000 is available in two 14" depth “rackable” and “stackable” chassis form factors. The optional nano server sled replaces the need for a virtual witness node. The in-chassis witness node allows for native, two-node vSAN clusters in the stackable server chassis.
The servers are small form factor, short depth units that can be deployed alone or in multi-node configurations.
The XR4000 used for this test was an XR4520c 2U compute sled. See table below for key specifications.
Table 6. Dell PowerEdge XR4520 Compute Sled Key Specifications
PowerEdge XR8000: Flexible, Innovative, Sled-based RAN-Optimized Server
The Dell PowerEdge XR8000 Edge Server is the newest addition Dell’s family of purpose-built, ruggedized servers. The PowerEdge XR4000 is built for environments like telecom edge environments where the servers could be subjected to demanding conditions including high temperatures, dust, shock and vibrations.
The short-depth XR8000 server, which comes in a sledded server architecture (with 1U and 2U single-socket form factors), is optimized for total cost of ownership (TCO) and performance in O-RAN (radio access network) applications. It is RAN optimized with integrated networking and 1/0 PTP/SyncE support. And its front-accessible design radically simplifies sled serviceability in the field.
The XR8000 offers options for multiple sled form factors with up to four nodes per chassis that can work together or independently. The 2U half-width sled configuration accommodates general purpose compute at the edge / far edge, while the 1U half-width sled configuration is ideal for dense compute and network edge-optimized workloads.
Table 7. Dell PowerEdge XR8620 Compute Sled Key Specifications
The XR8000 delivers extended tolerance to heat and cold with enhanced heatsinks and optimized airflow design. The system supports Sapphire Rapids SP and Edge Enhanced (EE) processors with Intel vRAN Boost, on-chip acceleration and includes both DC and AC power supply options and five total power supply unit (PSU) variants
PowerEdge XR5610: All-Purpose, Rugged 1U Edge Server
The Dell PowerEdge XR8000 Edge Server is a new addition Dell’s family of purpose-built, ruggedized servers. As with the PowerEdge XR8000 and PowerEdge XR4000, the PowerEdge XR5610 is built for environments where the servers could be subjected to demanding conditions including high temperatures, dust, shock and vibrations. The XR5610 is the upgraded successor to the XR11 that is also covered in this report.
The PowerEdge XR5610 is a 1U, single-socket server designed for target workloads in networking and communication, enterprise edge, military, and defense. It is well suited for 5G vRAN and ORAN telecom workloads, as well as military and defense deployments and retail AI including video monitoring, IoT device aggregation and PoS analytics. The design specification supports continuous operation in extreme temperatures ranging from -5C to 55C. The design is ruggedized, compliant, and compact.
The server features a filtered smart bezel for dust reduction and the server has undergone MIL810H and NEBS Level 3 testing for handling shocks and vibrations.
Table 8. Dell PowerEdge XR5610 Key Specifications
SPECPower Workload & Results
The Standard Performance Evaluation Corporation (SPEC), according to their website, “is a non-profit corporation formed to establish, maintain and endorse standardized benchmarks and tools to evaluate performance and energy efficiency for the newest generation of computing systems. SPEC develops benchmark suites and also reviews and publishes submitted results from our member organizations and other benchmark licensees.”
SPEC has established benchmarks, to date, in some nine different areas. In addition to power, the focus of this report, the benchmarks include Machine Learning, High Performance Computing, Virtualization, and more.
Server vendors run the benchmark tests in their own labs according to the SPEC benchmark specifications. Vendors may use the results internally and/or they can submit the results to SPEC for review and publication. Once published, the results are freely available and can be used by others in public reports so long as that use complies with the SPEC “Fair Use Policy” for the given benchmark.
As evidenced by its name, the SPECPower benchmark was issued in 2008. The workload, represented in the name by “ssj,” is “Server Side Java (SSJ).“ The benchmark drives the load on the target server while also measuring the power consumption of the server.
While the benchmark allows for different java virtual machines (JVM) to be used in the benchmark, the Oracle JVM is used almost exclusively for the tests. The results document CPU and memory configurations of the systems and reports “submeasurements” of SSL operations at 100% CPU, average watts consumed at 100%, and average watts at idle. The result reported is the overall SSJ operations divided by the watts consumed.
It is important to note that the test is run at 10 different loads from 10% to 100% in increments of 10% load. Only the 100% results are displayed in the SPECPower results table but the SPECPower “result” value is an average of all ten tests.
All results referenced in this report are available to the general public on the SPEC site at: https://www.spec.org/power_ssj2008/results. The information in the following tables is excerpted from the public results. The table, below, contains the submeasurements and the final result for each system discussed in the paper. All other results in this paper are calculated using the the SPECPower raw results below.
Table 9. SPEC SPECPower_ssj2008 Results
The table, below, contains the server system specifications as shown on the SPEC results website. All systems were tested using Oracle Corporation’s JVM.
Table 10. Server System Specifications
System BIOS Settings
The tests used Dells recommended BIOS settings for power efficiency. The Dell PowerEdge XR8000 and Dell PowerEdge XR4000 systems both used the following BIOS settings.
Table 11. Server System BIOS Settings
XR Series Price/Power Efficiency Claims
The charts below visualize the tabular results presented in the Executive Summary section earlier in this report.
The Tolly Group companies have been delivering world-class IT services for more than 30 years. Tolly is a leading global provider of third-party validation services for vendors of IT products, components and services.
You can reach the company by E-mail at email@example.com, or by telephone at +1 561.391.5610.
Visit Tolly on the Internet at: http://www.tolly.com
Terms of Usage
This document is provided, free-of-charge, to help you understand whether a given product, technology or service merits additional investigation for your particular needs. Any decision to purchase a product must be based on your own assessment of suitability based on your needs. The document should never be used as a substitute for advice from a qualified IT or business professional. This evaluation was focused on illustrating specific features and/or performance of the product(s) and was conducted under controlled, laboratory conditions. Certain tests may have been tailored to reflect performance under ideal conditions; performance may vary under real-world conditions. Users should run tests based on their own real-world scenarios to validate performance for their own networks.
Reasonable efforts were made to ensure the accuracy of the data contained herein but errors and/or oversights can occur. The test/audit documented herein may also rely on various test tools the accuracy of which is beyond our control. Furthermore, the document relies on certain representations by the sponsor that are beyond our control to verify. Among these is that the software/hardware tested is production or production track and is, or will be, available in equivalent or better form to commercial customers. Accordingly, this document is provided "as is", and Tolly Enterprises, LLC (Tolly) gives no warranty, representation or undertaking, whether express or implied, and accepts no legal responsibility, whether direct or indirect, for the accuracy, completeness, usefulness or suitability of any information contained herein. By reviewing this document, you agree that your use of any information contained herein is at your own risk, and you accept all risks and responsibility for losses, damages, costs and other consequences resulting directly or indirectly from any information or material available on it. Tolly is not responsible for, and you agree to hold Tolly and its related affiliates harmless from any loss, harm, injury or damage resulting from or arising out of your use of or reliance on any of the information provided herein.
Tolly makes no claim as to whether any product or company described herein is suitable for investment. You should obtain your own independent professional advice, whether legal, accounting or otherwise, before proceeding with any investment or project related to any information, products or companies described herein. When foreign translations exist, the English document is considered authoritative. To assure accuracy, only use documents downloaded directly from Tolly.com. No part of any document may be reproduced, in whole or in part, without the specific written permission of Tolly. All trademarks used in the document are owned by their respective owners. You agree not to use any trademark in or as the whole or part of your own trademarks in connection with any activities, products or services which are not ours, or in a manner which may be confusing, misleading or deceptive or in a manner that disparages us or our information, projects or developments.
Tolly Report #223124
© 2023 TOLLY ENTERPRISES, LLC www.tolly.com
 At publication time the XR5610 results were being prepared for submission to SPEC and should appear later in Q3 2023.
Abstract: A Path to Virtualization at the Edge
Thu, 17 Aug 2023 18:44:54 -0000|
Read Time: 0 minutes
Picking the right edge-computing option from the Dell™ PowerEdge™ XR family of servers.
The Ever-Growing Importance of Edge Computing
Data at the edge is rich with information. For the most actionable insights, especially with power-hungry workloads like data analytics and AI/ML, modern organizations capture and analyze data when and where it’s generated—even when that location is in an unforgiving environment far from the data center, such as an oil rig in the North Sea.
Prowess Consulting investigated some of the latest-generation edge-computing servers from Dell Technologies to see how they meet the challenge of keeping up with performance needs in the most hostile environments. We looked at inter- and intra-generational differences, compared specs and VMmark® results, and considered potential use cases.
We found that, for organizations looking for the ideal edge server, the Dell™ PowerEdge™ XR7620 server delivers high performance, including excellent virtualization capabilities and VMware vSAN™ performance, whereas PowerEdge XR4000 series servers deliver excellent density and deployment flexibility.
The Unforgiving Edge
Workloads like data analytics and AI/ML, which process data at the edge, drive the need for high performance. And a host of environmental and logistical challenges arise when you move that high performance to the edge. For example, a factory that combines Internet of Things (IoT) and digital twin technologies to automate resource allocation and optimize efficiency through analytics and AI will need servers on the factory floor to generate and capture actionable data. And that means exposure to heat, vibration, dust, and more.
How your organization addresses these considerations of performance and durability inherent to edge computing is key. Regardless of your solution, maximizing performance and safeguarding against harsh environments is critical.
The PowerEdge XR7620 Server: A Generational Update
Figure 1 provides a quick visual reference for the servers discussed in this abstract.
Figure 1. Venn diagram of the Dell™ PowerEdge™ XE2420, XR7620, and XR4000 series servers
PowerEdge XR7620 Server vs. PowerEdge XE2420 Server
Prowess Consulting examined the performance difference between the PowerEdge XR7620 server and its previous generation, the PowerEdge XE2420 server.
The 4th Gen Intel® Xeon® Scalable processors powering the PowerEdge XR7620 server provide several benefits over the 2nd Gen Intel Xeon Scalable processors powering the PowerEdge XE2420 server. These benefits include:
- 1.53x average generation-on-generation performance improvement
- Up to 1.60x higher input/output operations per second (IOPS) and up to 37% latency reduction for large-packet sequential reads using integrated Intel® Data Streaming Accelerator (Intel® DSA) versus the prior generation
- Up to 95% fewer cores and 2x higher level-1 compression throughput using integrated Intel® QuickAssist Technology (Intel® QAT) versus the prior generation
This improved performance between generations can also been seen by comparing VMware vSAN deployments. The PowerEdge XE2420 server and the PowerEdge XR7620 server can both implement two-node vSAN deployments. However, as noted previously, the PowerEdge XR7620 server will be more performant with those deployments. This higher level of performance doesn’t just come from the upgraded processor, either. The 4th Gen Intel Xeon Scalable processors in the PowerEdge XR7620 server are optimized to take full advantage of the new features and software improvements in VMware vSphere® 8, including GPU- and CPU-based acceleration.
VMmark® Examination of PowerEdge XR7620 and PowerEdge XR4000 Series Servers
The PowerEdge XR7620 server is part of the PowerEdge XR family of servers, all of which are built to handle the most extreme environments while still delivering performance and reliability. We wanted to examine the PowerEdge XR7620 server alongside its “younger siblings,” the PowerEdge XR4000 series servers, and investigate the intra-generational differences in the PowerEdge XR family. (While not discussed in this study, the PowerEdge XR8000 series servers provide excellent flexibility and stability, and would be the “elder sibling” in the family.)
The VMmark results show the PowerEdge XR7620 server can achieve more performance across more tiles (fourteen versus four). These results also illustrate what can be achieved at the edge with a full, dual-socket server using the latest-generation processors in a short depth, 2U ruggedized chassis at the edge. While the PowerEdge XR7620 server’s overall performance wins are expected, what’s missing is how performant at the edge the PowerEdge XR4000 series servers are. Given the smaller size and shorter form factor overall, the PowerEdge XR4000 series servers are very performant relative to size, and they are an excellent option when a smaller, denser, more flexible deployment is called for. Moreover, their redundancy allows for more hardware failures, making them resilient and durable.
VMware vSAN is widely deployed as a virtualization software and hyperconverged infrastructure (HCI) solution, so we compared vSAN deployments inter-generationally as well. While both servers take advantage of vSAN, the PowerEdge XR7620 server will offer more overall performance, whereas PowerEdge XR4000 series servers offer the highest density in the smallest form factor.
There is, however, another significant benefit to the upgraded PowerEdge XR7620 server: power savings and sustainability. As shown in our technical research study, the PowerEdge XR7620 server offers double the cores of the PowerEdge XR4510c server tested, for less than double the wattage, resulting in a smaller power draw when the PowerEdge XR7620 is deployed at the edge. The reduced power consumption can also potentially lower total cost of ownership (TCO) and help meet your business’s sustainability goals.
Finding an Edge Within the PowerEdge XR Family
Our research concludes that the Dell PowerEdge XR family of servers is a great option for organizations looking for reliable, high-performing servers in ruggedized, short-depth form factors designed specifically for edge computing. Among the range of PowerEdge XR family servers examined by Prowess Consulting, the PowerEdge XR7620 server represents a solid upgrade from the previous generation, and it is the performance-focused offering in the new PowerEdge XR family of servers. PowerEdge XR4000 series servers are the high-density, performant option when durability and space constraints are primary concerns.
For full research results and configuration details, see the technical research report at https://infohub.delltechnologies.com/p/a-path-to-virtualization-at-the-edge.
For more information on the new offerings in the PowerEdge XR family, see “Dell PowerEdge Gets Edgy with XR8000, XR7620, and XR5610 Servers.
Understanding Thermal Design and Capabilities for the PowerEdge XR8000 Server
Thu, 27 Jul 2023 20:40:00 -0000|
Read Time: 0 minutes
This study is intended to help customers understand the behavior of the XR8000 PowerEdge server in harsh environmental conditions at the edge, and its resulting performance.
The need to improve power efficiency and provide sustainable solutions has been imminent for some time. According to a Bloomberg report, in some countries, data centers will account for an estimated 5-10% of energy consumption by 2030. This will include the demand for edge and cloud computing requirements. Dell Technologies continues to innovate in this aspect and has launched its latest portfolio of XR servers for the edge and telecom this year.
The latest offering from the Dell XR portfolio is a series of rugged servers purpose-built for the edge and telecom, especially targeting workloads for retail, manufacturing, and defense. This document highlights the testing results for power consumption and fan speed across the varying temperature range of -5 to 55°C (23F to 122F) by running iPerf3 on the XR8000 server.
About PowerEdge XR8000 – a Flexible, innovative, sled-based, RAN-optimized server
The short-depth XR8000 server, which comes in a sledded server architecture (with 1U and 2U single-socket form factors), is optimized for total cost of ownership (TCO) and performance in O-RAN applications. It is RAN optimized with integrated networking and 1/0 PTP/SyncE support. Its front-accessible design radically simplifies sled serviceability in the field.
The PowerEdge XR8000 server is built rugged to operate in temperatures from -5°C to 55°C for select configurations. (For additional details, see the PowerEdge XR8000 Specification Sheet.)
Figure 1. Dell PowerEdge XR8000
Thermal chamber testing
For the purpose of conducting this test, we placed a 2U XR8000 inside the thermal chamber in our test lab. While in the thermal chamber, we ran the iPerf3 workload on the system for more than eight hours, stressing the system from 5-20%. We measured power consumption and fan speed using iDRAC at 10-degree intervals of Celsius temperature from 0C to 55C.
The iPerf3 throughput measured for 1GB, 10GB, and 25GB seemed consistent across the entire temperature range, with no impact on performance as temperature increased. The fan speed and power consumption increased with temperature, which is the expected behavior.
Figure 2. Thermal chamber in the Dell performance testing lab
Table 1. System configuration
Node hardware configuration
1 x 6421N (4th Generation Intel® Xeon® Scalable Processors)
2 x 8610t
8 x 64GB PC5 4800MT
2 x 1400w PSU
1 x Dell NVMe 7400 M.2 960GB
6.10.89.00 Build X15
1 x DP 25GB BCM 57414
iPerf3 is an open-source tool for actively measuring the maximum achievable bandwidth on IP networks. It supports the tuning of various parameters related to timing, buffers, and protocols (TCP, UDP, SCTP with IPv4, and SCTP with IPv6). For each test it reports bandwidth, loss, and other parameters. An added advantage of using iPerf3 for testing network performance is that it is very reliable if you have two servers, in geographically different locations, and you want to measure network performance between them. (For additional details about iPerf3, see iPerf - The ultimate speed test tool for TCP, UDP and SCTP.)
Figure 3. Constant networking performance with varying temperature and fan speed
Figure 3 shows that as the temperature and fan speed increases, the iPerf3 throughput stays the same. Fan speed is only 14% for temperatures near 20°C.
Figure 4. Power consumption and fan speed
Figure 4 shows that as temperature increases, Chassis power consumption for the system increases. It is 254W at 20°C.
A deep dive into the results
The consistent performance with increasing temperature and power can be attributed to several design considerations when designing and building these edge/telecom servers:
- RAF: The Reverse Airflow option offered in these servers is carried from Dell’s innovation in Multi-Vector Cooling technology. While most of the innovations for MVC center around optimizing thermal controls and management, the physical cooling hardware and its architecture layout help. XR servers are shallower, which can mean less airflow impedance, resulting in more airflow.
- Fans: XR servers are designed with high-performance fans, which have significantly increased airflow performance over previous fan generations.
- Layout: The T-shape system motherboard layout, along with PSUs that are located at each corner of the chassis, allows improved airflow balancing and system cooling, and consequently, improved system cooling efficiency. This layout also improves PSU cooling due to reduced risk from high pre-heat coming from CPU heat sinks. The streamlined airflow helps with PCIe cooling and enables support for PCIe Gen5 adapters.
- Smaller PSU Form Factor: In the 1U systems, a new, narrower, 60mm form factor PSU is implemented to increase the exhaust path space.
- XR servers usually support CPUs with higher TCase requirements. TCase stands for Case Temperature and is the maximum temperature allowed at the processor Integrated Heat Spreader (IHS).
For more details about the design considerations used for edge servers, see the blog Computing on the Edge–Other Design Considerations for the Edge.
To best supplement the improved cooling hardware, the PowerEdge engineering team carried on the key features from the previous generation of PowerEdge servers to deliver autonomous thermal solutions capable of cooling next-generation PowerEdge servers.
An iDRAC feature in XR8000 detects Dell PCIe cards and automatically delivers the correct airflow to the slot to cool that card. When non-Dell PCIe cards are detected, the customer is given the option to enter the airflow requirement (LFM – Linear Feet per Minute) as specified by the card manufacturer. iDRAC and the fan algorithm ‘learn’ this information and the card is automatically cooled with the proper airflow. This feature saves power by not having to run the fans to cool the worst-case card in the system. Noise is also reduced.
More information about thermal management, see “Thermal Manage” Features and Benefits.
Figure 5. iDRAC settings to view fan status during our XR8000 testing in the thermal chamber
Dell Technologies is continuing its efforts to test other XR devices and to determine power consumption for various workloads and its variation with changes in temperature. This study is intended to help customers understand the behavior of XR servers in harsh environmental conditions at the edge and their resulting performance.
- PowerEdge XR8000 Specification Sheet
- iPerf - The ultimate speed test tool for TCP, UDP and SCTP
- Computing on the Edge–Other Design Considerations for the Edge
- “Thermal Manage” Features and Benefits