Reference Guide

Dell PowerConnect W-AirWave 7.5 | Server Sizing Guide Selecting Your Hardware Components | 3
Chapter 1
Selecting Your Hardware Components
This overview chapter includes the following topics:
 “CPU, Memory, and Storage Matrix” on page3
 “Choosing Your CPU” on page4
 “Choosing Your Memory” on page4
 “Choosing Your RAID Controller” on page5
 “Choosing Your Hard Drives” on page6
CPU, Memory, and Storage Matrix
The following table lists the recommended specifications for optimum AirWave server performance.
** Optimized memory can vary depending on the vendor configuration. Contact Dell support at support.dell.com for more information.
Table 2 Recommended CPU, Memory, and Storage
Managed
Devices
CPU Class
Min. Clock
Speed (GHz)
CPUs
AirWave
Memory
AirWave
Storage
Sustained IOPs
Performance
4KB random write
Min. Disk
Configura-
tion
Pilot 1-25
APs
Single Quad Core
Intel® Xeon I3-2100
3.1 1 8 GB 75 GB 30 (1) 15K SAS
100 Single Quad Core
Intel® Xeon E3-1220
3.1 1 8 GB 75 GB 60 (1) 15K SAS
200 Single Quad Core
Intel® Xeon E3-1240
3.3 1 8 GB 75 GB 120 (1) 15K SAS
500 Single Quad Core
Intel® Xeon W3670
3.2 1 12 GB 75 GB 300 (4) 15K SAS in
RAID 1+0
1,000 Single Quad Core
Intel® Xeon X5687
3.6 1 16 GB 187 GB 600 (6) 15K SAS in
RAID 1+0
1,750 Single Quad Core
Intel® Xeon X5687
3.6 1 24 GB 275 GB 1,000 (8) 15K SAS in
RAID 1+0
2,500 Dual Quad Core Intel®
Xeon X5687
3.6 2 32 GB (36 GB
optimized**)
375 GB 1,500 (8) 15K SAS in
RAID 1+0
5,000 Dual Hex Core Intel®
Xeon X5690
3.46 2 64 GB (72 GB
optimized**)
600 GB 3,000 (16) 15K SAS
in RAID 1+0
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.