Dell PowerConnect W-AirWave 7.6 Server Sizing Manual
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Summary of Contents for Dell PowerConnect W-AirWave 7.6
- Page 1 Dell PowerConnect W-AirWave 7.6 Server Sizing Guide...
- Page 2 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.
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Page 3: Table Of Contents
SSDs vs 15K SAS Configuring Your Hardware CPU Configuration Disk Partitioning File System Configuration Virtualization and Scalability Virtualization Scalability Assumptions Sizing a Master Console and Failover Server Master Console Failover Server Dell PowerConnect W-AirWave 7.6 | Server Sizing Guide | iii... - Page 4 | Dell PowerConnect W-AirWave 7.6 | Server Sizing Guide...
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Page 5: Selecting Your Hardware Components
2690 @ 2.90GHz NOTE: Ensure that the disk subsystem can sustain 4KB random write rates. Sustained sequential write rates will not help because AirWave writes are primarily random. Dell PowerConnect W-AirWave 7.6 | Server Sizing Guide Selecting Your Hardware Components | 1... -
Page 6: Choosing Your Cpu
NOTE: To ensure hardware capability, purchase server hardware that is certified to be compatible with Red Hat Enterprise Linux 5 (RHEL5). Choosing Your CPU For most AirWave installations, Dell recommends selecting high-performance Xeon E-series CPUs. Dell performs scalability testing using Intel based hardware at this time. See Table 1 "CPU, Memory, and Storage Matrix" on page 1 for recommendations on CPU selection based on clock speed and core type. -
Page 7: Choosing Your Raid Controller
NOTE: 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. Dell PowerConnect W-AirWave 7.6 | Server Sizing Guide Selecting Your Hardware Components | 3... -
Page 8: Choosing Your Hard Drives
The actual disk IOP requirement can vary depending on the configuration of the AirWave server. NOTE: If you have any questions regarding hardware compatibility or selection, contact Dell support at dell.com/support. NOTE: AirWave servers servicing more than 2,500 devices require 64-bit OS and AirWave 7.1 or higher. Do not use software RAID systems or SATA disk drives. -
Page 9: Configuring Your Hardware
To configure noop as your preferred scheduler: # echo noop > /sys/block/sda/queue/scheduler And confirm that your change has been applied: # cat /sys/block/sda/queue/scheduler [noop] anticipatory deadline cfq (Expected Output) Dell PowerConnect W-AirWave 7.6 | Server Sizing Guide Configuring Your Hardware | 5... - Page 10 6 | Configuring Your Hardware Dell PowerConnect W-AirWave 7.6 | Server Sizing Guide...
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Page 11: Virtualization And Scalability
20%. NOTE: Dell recommends a 20% increase buffer for virtualized environments. Ensure you allocate enough extra disk space for the OS and swap when partitioning the virtual disk. Scalability Assumptions Using the specifications outlined in the "CPU, Memory, and Storage Matrix"... - Page 12 Number of attenuation grid cells per floor plan 2,500 Number Rogue devices per floor plan AirWave Synchronization timer (minutes) Rogue location timer (minutes) Location calculation timer (min/max/number of samples) 90/360/3 8 | Virtualization and Scalability Dell PowerConnect W-AirWave 7.6 | Server Sizing Guide...
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Page 13: Sizing A Master Console And Failover Server
The Failover server should be as powerful as the most powerful AirWave server that it monitors to ensure smooth operation in a failover situation. Dell PowerConnect W-AirWave 7.6 | Server Sizing Guide Sizing a Master Console and Failover Server | 9...