Dell PowerConnect W-AirWave 7.6 Manual de usuario descargar pdf (Pagina 11)

Dell PowerConnect W-AirWave 7.6 | Server Sizing Guide Virtualization and Scalability | 7

Chapter 3

Virtualization and Scalability

This section includes the following topics:

l "Virtualization" on page 7

l "Scalability Assumptions" on page 7

Virtualization

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.

Most virtualized environments use a shared disk subsystem assuming that each application will have bursts of I/O

without a sustained high I/O throughput. AirWave requires a continuous sustained high data I/O rate.

For virtualized environment, use dedicated hardware. If you are using the specifications outlined in the "CPU,

Memory, and Storage Matrix" on page 1 section, 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

Using the specifications outlined in the "CPU, Memory, and Storage Matrix" on page 1 section, Dell continually

tests scalability based on the following assumptions. Deviations from these assumptions can impact overall

scalability of your AirWave server.

Category

AP Interface polling period 10

Device-to-device link period 5

CDP neighbor data polling 30

Ratio of switches/routers to access points 25%

Read ARP polling (hours) 4

Read CDP table for device discovery polling (hours) 4

Read bridge forwarding table polling (hours) 4

Interface Up/Down polling period 10

Table 4:

Wireless Scalability Test Values

1 2 ... 6 7 8 9 10 11 12 13

Sin comentarios

Dell PowerConnect W-AirWave 7.6 Manual de usuario Pagina 11