Dell PowerConnect WAirWave 7.
Copyright © 2011 Aruba Networks, Inc. Aruba Networks trademarks include , Aruba Networks®, Aruba Wireless Networks®, the registered Aruba the Mobile Edge Company logo, and Aruba Mobility Management System®. Dell™, the DELL™ logo, and PowerConnect™ are trademarks of Dell Inc. All rights reserved. Specifications in this manual are subject to change without notice. Originated in the USA. All other trademarks are the property of their respective owners.
Contents Preface....................................................................................................................................................................... 5 Document Organization..................................................................................................................... 5 Note, Caution, and Warning Icons .................................................................................................. 5 Contacting Support ...............................
| Dell PowerConnect W-AirWave | Server Sizing Guide
Preface This preface provides an overview of this guide, a list of all documentation available for AirWave 7.4, including contact information for Dell, and includes the following sections: “Document Organization” on page 5 “Note, Caution, and Warning Icons” on page 5 “Contacting Support” on page 6 Document Organization This document provides guidelines for purchasing new hardware which hosts AirWave.
Contacting Support Table 2 Web Support Web Support 6 | Preface Main Website dell.com Support Website support.dell.com Documentation Website support.dell.com/manuals Dell PowerConnect W-AirWave 7.
Chapter 1 Selecting Your Hardware Components This overview chapter includes the following topics: “CPU, Memory, and Storage Matrix” on page 7 “Choosing Your CPU” on page 8 “Choosing Your Memory” on page 9 “Choosing Your RAID Controller” on page 9 “Choosing Your Hard Drives” on page 10 CPU, Memory, and Storage Matrix The following table lists the recommended specifications for optimum Dell PowerConnect W-AirWave server performance.
The following table lists the minimum specifications required to run AirWave. Table 4 Minimum CPU, Memory, and Storage Managed CPU Class Devices Min. Clock Speed (GHz) Sustained Min. Disk AirWave AirWave IOPs ConfiguraCPUs Memory Storage Performance tion 4KB random write Pilot 1-25 APs Single Quad Core Intel® Xeon I3-2100 3.1 1 4 GB 75 GB 30 (1) 15K SAS 100 Single Quad Core Intel® Xeon E3-1220 3.1 1 6 GB 75 GB 60 (1) 15K SAS 200 Single Quad Core Intel® Xeon E3-1240 3.
Choosing Your Memory Dell PowerConnect W-AirWave's memory recommendations scale linearly with the managed device count. With AirWave servers running at full load for those device counts with a large number of floorplans, the recommended memory usually results in best overall performance. Best performance is defined by minimal disk reads due to sufficient caching, thus allowing for maximum disk write performance and minimal CPU I/O wait time.
5,000 Devices - SSD Drives AWMS 2,500 - 5,000 device installations with SSDs require Single Level Cell (SLC) Enterprise class SSD drives. CAUTION: Do not use Multi Level Cell (MLC) Consumer class drives. Use of MLC drives can result in drastically reduced SSD drive lifespan and data loss/volume failure due to write exhaustion.
Chapter 2 Configuring Your Hardware This chapter explains sizing information for the following topics: “CPU Configuration” on page 11 “Disk Partitioning” on page 11 “Filesystem Configuration” on page 11 CPU Configuration Ensure that Power Management is configured for Maximum Performance. By default, most vendors configure BIOS to an eco-friendly setting. Ensure that Memory Operating Mode is configured to Optimizer Mode, if available. Disk Partitioning Dell PowerConnect W-AirWave 7.
| Configuring Your Hardware Dell PowerConnect W-AirWave 7.
Chapter 3 Virtualization and Scalability This chapter includes the following topics: “Virtualization” on page 13 “Scalability Assumptions” on page 13 Virtualization Dell PowerConnect W-AirWave can run in a VMWare and Xen virtualized environment. To ensure scalability, dedicate the processing and memory. You must also ensure that the disk subsystem can maintain the IOPS throughput as detailed below.
Table 7 Wired Scalability Test Values Category Value Ratio of switches/routers to access points 20% Average port density of switches/routers 36 Read ARP polling period (hours) 8 Read CDP table for device discovery polling period (hours) 8 Read bridge forwarding table polling period (hours) 8 Interface polling period (minutes) 20 Table 8 VisualRF Scalability Test Values Category Value Average floor plan size (feet) 62,500 Number of access points per floor plan 20 Number of clients per flo
Appendix A Sizing a Master Console and Failover Master Console Table 9 Master Console Specifications Clock Speed (GHz) CPUs Total Cores Memory Disk Subsystem Quad Core Intel® Xeon® X5687 3.6 1 4 12 GB (4) 73GB, 15K RPM - RAID 1+0, 146 GB of usable disk space Quad Core Intel® Xeon® X5687 3.
| Sizing a Master Console and Failover Dell PowerConnect W-AirWave 7.
