For Red Hat Ceph Storage 3.2 Dell EMC Ready Architecture
Dell EMC Ready Architecturefor Red Hat Ceph Storage 3.2Performance Optimized Block Storage Architecture GuideDell EMC Service Provider Solutions
ii ContentsContentsList of Figures.ivList of Tables. viTrademarks.viiiNotes, Cautions, and Warnings.ixChapter 1: Introduction. 10Introduction.11Dell PowerEdge R740xd.11Dell EMC PowerSwitch S5248F-ON. 12Chapter 2: Overview of Red Hat Ceph Storage. 13Overview of Red Hat Ceph Storage. 14Introduction to Ceph storage pools. 15Selecting storage access method. 18Selecting storage protection method. 19BlueStore.20Selecting a hardware configuration. 20Chapter 3: Architecture components. 21Architecture overview.22R740xd storage node. 22Storage devices. 23Networking.23CPU and memory sizing.24Network switches. 25Storage node Ceph NICs. 25Storage node PCIe/NUMA considerations. 26Storage node hardware configuration. 26R640 admin node. 27Number of nodes. 27Rack component view.28Software. 29Architecture summary. 29Chapter 4: Test setup. 31Physical setup. 32Configuring Dell PowerEdge servers.33Deploying Red Hat Enterprise Linux. 33Deploying Red Hat Ceph Storage.33Metrics collection.34Test and production environments compared. 35Chapter 5: Test methodology. 36Overview.37Dell EMC Ready Architecture for Red Hat Ceph Storage 3.2 Performance Optimized Block Storage Architecture Guide
Contents iiiWorkload generation. 37Ceph Benchmarking Tool.38Iterative tuning.39Testing approach.40Chapter 6: Hardware baseline testing.41Baseline testing overview. 42CPU baseline testing. 42Network baseline testing.42Storage device baseline testing. 42Chapter 7: Benchmark test results.44Bottleneck analysis. 454KB random read. 454KB random write. 464KB random mixed. 484MB sequential read.494MB sequential write. 51Analysis summary. 52Chapter 8: Conclusions. 55Intel P4610 NVMe guidance. 56Conclusions. 56Appendix A: References. 58Bill of Materials (BOM). 59Tested BIOS and firmware. 60Configuration details. 60Benchmark details.64To learn more.65Glossary.66Dell EMC Ready Architecture for Red Hat Ceph Storage 3.2 Performance Optimized Block Storage Architecture Guide
iv List of FiguresList of FiguresFigure 1: Key takeaways of deploying Red Hat Ceph Storage on Dell EMCPowerEdge R740xd servers. 11Figure 2: Red Hat Ceph Storage.14Figure 3: Ceph storage pools. 16Figure 4: Ceph dashboard. 18Figure 5: RADOS layer in the Ceph architecture. 19Figure 6: Storage node Ceph networking.25Figure 7: Storage node PCIe slot assignments.26Figure 8: The 4-Node Ceph cluster and admin node based on Dell PowerEdgeR740xd and R640 servers.28Figure 9: Ceph cluster with R640 servers as load generators. 32Figure 10: Colocated containerized Ceph block storage.34Figure 11: Test methodology components. 38Figure 12: Placement group formula. 39Figure 13: 4KB random read. 45Figure 14: 4KB random read NVMe usage. 46Figure 15: 4KB random read CPU usage. 46Figure 16: 4KB random write.47Figure 17: 4KB random write NVMe usage.47Figure 18: 4KB random write CPU usage. 48Figure 19: 4KB random mixed.48Figure 20: 4KB mixed NVMe usage. 49Figure 21: 4KB mixed CPU usage. 49Figure 22: 4MB sequential read. 50Figure 23: 4MB sequential read NVMe usage. 50Figure 24: 4MB sequential read retwork usage.51Dell EMC Ready Architecture for Red Hat Ceph Storage 3.2 Performance Optimized Block Storage Architecture Guide
List of Figures vFigure 25: 4MB sequential write. 51Figure 26: 4MB sequential write NVMe usage. 52Figure 27: 4MB sequential write network usage. 52Dell EMC Ready Architecture for Red Hat Ceph Storage 3.2 Performance Optimized Block Storage Architecture Guide
vi List of TablesList of TablesTable 1: Ceph cluster design considerations. 15Table 2: BlueStore/FileStore comparison.20Table 3: R740xd storage devices. 23Table 4: Storage node networking. 23Table 5: Sizing memory requirements. 24Table 6: Sizing CPU physical core requirements. 24Table 7: Dell network switches. 25Table 8: Storage node hardware configuration.26Table 9: Admin node networking. 27Table 10: Admin node hardware configuration. 27Table 11: Architecture software components/configuration.29Table 12: Architecture objectives. 29Table 13: Software components in testbed. 33Table 14: Ceph configuration used in all benchmarks.33Table 15: Required services. 33Table 16: Differences between performance testing and production environments. 35Table 17: RBD Image Sizes Used. 37Table 18: Tuning with caution. 39Table 19: Standard test parameters. 40Table 20: CPU baseline. 42Table 21: Network baseline.42Table 22: NVMe storage device baseline. 43Table 23: Workload bottlenecks. 53Table 24: Bottleneck exposure by component.53Table 25: Performance ratings of Intel P4600 and Intel P4610.56Dell EMC Ready Architecture for Red Hat Ceph Storage 3.2 Performance Optimized Block Storage Architecture Guide
List of Tables viiTable 26: Performance highlights. 56Table 27: Bill of Materials (BOM) - R740xd storage nodes. 59Table 28: Bill of Materials (BOM) - R640 admin node.59Table 29: Tested server BIOS and firmware versions. 60Table 30: Tested switch firmware versions. 60Dell EMC Ready Architecture for Red Hat Ceph Storage 3.2 Performance Optimized Block Storage Architecture Guide
viii TrademarksTrademarksCopyright 2014-2019 Dell Inc. or its subsidiaries. All rights reserved.Microsoft and Windows are registered trademarks of Microsoft Corporation in the United States and/orother countries.Red Hat , Red Hat Enterprise Linux , and Ceph are trademarks or registered trademarks of Red Hat, Inc.,registered in the U.S. and other countries. Linux is the registered trademark of Linus Torvalds in the U.S.and other countries. Intel and Xeon are registered trademarks of Intel Corporation. Oracle and Java are registered trademarks of Oracle Corporation and/or its affiliates.Cumulus , Cumulus Networks , Cumulus Linux , is a registered trademark of Cumulus, registered in theU.S. and other countries.Amazon and S3 are registered trademarks of Amazon.com, Inc.DISCLAIMER: The OpenStack Word Mark and OpenStack Logo are either registered trademarks/service marks or trademarks/service marks of the OpenStack Foundation, in the United States and othercountries and are used with the OpenStack Foundation's permission. We are not affiliated with, endorsedor sponsored by the OpenStack Foundation or the OpenStack community.Dell EMC Ready Architecture for Red Hat Ceph Storage 3.2 Performance Optimized Block Storage Architecture Guide
Notes, Cautions, and Warnings ixNotes, Cautions, and WarningsA Note indicates important information that helps you make better use of your system.A Caution indicates potential damage to hardware or loss of data if instructions are notfollowed.A Warning indicates a potential for property damage, personal injury, or death.This document is for informational purposes only and may contain typographical errors and technicalinaccuracies. The content is provided as is, without express or implied warranties of any kind.Dell EMC Ready Architecture for Red Hat Ceph Storage 3.2 Performance Optimized Block Storage Architecture Guide
10 IntroductionChapter1IntroductionTopics: IntroductionDell PowerEdge R740xdDell EMC PowerSwitchS5248F-ONDell EMC has several different Ready Architectures for Red HatCeph Storage 3.2 that are designed and optimized to fulfill differentobjectives. There are architectures for: Cost-optimized and balanced block storage with a blend ofSSD and NVMe storage to address both cost and performanceconsiderationsPerformance-optimized block storage with all NVMe storagePerformance- and capacity-optimized object storage, with a blendof HDD and Intel Optane storage to provide high-capacity,excellent performance, and cost-effective storage optionsThis document covers the Dell EMC Ready Architecture for Red HatCeph Storage 3.2 for Performance Optimized Block Storage.This chapter gives insight into the key takeaways of deployingthe Ready Architecture. It also introduces the readers to the DellPowerEdge R740xd storage server, as well as the Dell EMCPowerSwitch S5248 switch.Dell EMC Ready Architecture for Red Hat Ceph Storage 3.2 Performance Optimized Block Storage Architecture Guide
Introduction 11IntroductionUnstructured data has demanding storage requirements across the access, management, maintenance,and particularly the scalability dimensions. To address these requirements, Red Hat Ceph Storageprovides native object-based data storage and enables
The Red Hat Ceph Storage environment makes use of industry standard servers that form Ceph nodes for scalability, fault-tolerance, and performance. Data protection methods play a vital role in deciding the total cost of ownership (TCO) of a solution. Ceph allows the user to set different data protection methods on different storage pools.
A Red Hat Ceph Storage cluster is the foundation for all Ceph deployments. After deploying a Red Hat Ceph Storage cluster, there are administrative operations for keeping a Red Hat Ceph Storage cluster healthy and performing optimally. The Red Hat Ceph Storage Administration Guide helps storage administrators to perform such tasks as:
Ceph Storage Cluster. Ceph's monitoring and self-repair features minimize administration overhead. You can configure a Ceph Storage Cluster on non-identical hardware from different manufacturers. Ceph Storage for Oracle Linux Release 3.0 is based on the Ceph Community Luminous release (v12.2.5).
Ceph Manager: The Ceph Manager maintains detailed information about placement groups, process metadata and host metadata in lieu of the Ceph Monitor— s ignificantly improving performance at scale. The Ceph Manager handles execution of many of the read-only Ceph CLI queries, such as placement group statistics.
Ceph and MySQL represent highly complementary technologies, providing: Strong synergies . MySQL, OpenStack, and Ceph are often chosen to work together. Ceph is the leading open source software-defined storage solution. MySQL is the leading open source rela-tional database management system (RDBMS). 1 Moreover, Ceph is the number-one block .
Ceph features, then packages changes into predictable, stable, enterprise-quality releases. Red Hat Ceph Storage 3.2 is based on the Ceph community ‘Luminous’ version 12.2.1, to which Red Hat was a leading code contributor. As a self-healing, self-managing, unified storage platform with no single point of
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