Dell PowerConnect W-Airwave Manual
Server sizing guide
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Summary of Contents for Dell PowerConnect W-Airwave
- Page 1 Dell PowerConnect W- AirWave 7.5 Server Sizing Guide...
- Page 2 VPN client devices constitutes complete acceptance of liability by that individual or corporation for this action and indemnifies, in full, Aruba Networks, Inc. from any and all legal actions that might be taken against it with respect to infringement of copyright on behalf of those vendors. Dell PowerConnect W-AirWave 7.5 | Server Sizing Guide 0510830-04 | Aug 2012...
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Page 3: Table Of Contents
Chapter 3 Virtualization and Scalability ..................... 9 Virtualization............................9 Scalability Assumptions ........................9 Appendix A Sizing a Master Console and Failover Server .............. 11 Master Console..........................11 Failover Server..........................11 Dell PowerConnect W-AirWave 7.5 | Server Sizing Guide Contents | iii... - Page 4 | Contents Dell PowerConnect W-AirWave 7.5 | Server Sizing Guide...
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Page 5: Preface
NOTE: Indicates helpful suggestions, pertinent information, and important things to remember. CAUTION: Indicates a risk of damage to your hardware or loss of data. WARNING: Indicates a risk of personal injury or death. Dell PowerConnect W-AirWave | Server Sizing Guide Preface | 1... -
Page 6: Contacting Support
Contacting Support Web Site Support dell.com Main Website support.dell.com Support Website support.dell.com/manuals Documentation Website 2 | Preface Dell PowerConnect W-AirWave | Server Sizing Guide... -
Page 7: Chapter 1 Selecting Your Hardware Components
RAID 1+0 ** Optimized memory can vary depending on the vendor configuration. Contact Dell support at support.dell.com for more information. NOTE: Ensure that the disk subsystem can sustain these 4KB random write rates. Sustained sequential write rates will not help because AirWave writes are primarily random. -
Page 8: 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 X or W-series based CPUs. Dell performs scalability testing using Intel based hardware at this time. See Table 2 for recommendations on CPU selection based on clock speed and core type. -
Page 9: Choosing Your Raid Controller
RAID 1+0 configuration of sixteen (16) or more 15K SAS drives in a single volume with dedicated Hardware RAID controller with minimum 1GB of cache and battery backup. Dell PowerConnect W-AirWave 7.5 | Server Sizing Guide Selecting Your Hardware Components | 5... -
Page 10: 5,000 Devices - Ssd 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 support.dell.com. 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 11: Chapter 2 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 7.5 | Server Sizing Guide Configuring Your Hardware | 7... - Page 12 8 | Configuring Your Hardware Dell PowerConnect W-AirWave 7.5 | Server Sizing Guide...
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Page 13: Chapter 3 Virtualization And Scalability
2, the hardware for virtualization should exceed these specifications by 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... - Page 14 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 10 | Virtualization and Scalability Dell PowerConnect W-AirWave 7.5 | Server Sizing Guide...
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Page 15: Appendix A 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 7.5 | Server Sizing Guide Sizing a Master Console and Failover Server | 11... - Page 16 12 | Sizing a Master Console and Failover Server Dell PowerConnect W-AirWave 7.5 | Server Sizing Guide...