Installation guide

3 – Planning
Multiple Chassis Fabrics
59096-00 A 3-7
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3.5.1
Optimizing Device Performance
When choosing a topology for a multiple chassis fabric, you should also consider
the locality of your server and storage devices and the performance requirements
of your application. Storage applications such as video distribution, medical record
storage/retrieval or real-time data acquisition can have specific latency or
bandwidth requirements.
The SANbox 5602 switch provides the lowest latency of any product in its class.
Refer to “Performance” on page 3-4 for information about latency. However, the
highest performance is achieved on Fibre Channel switches by keeping traffic
within a single switch instead of relying on ISLs. Therefore, for optimal device
performance, place devices on the same switch under the following conditions:
Heavy I/O traffic between specific server and storage devices.
Distinct speed mismatch between devices such as the following:
A 2-Gbps server and a slower 1-Gbps storage device
A high performance server and slow tape storage device