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You are designing a new SAN fabric for a customer environment. The customer want the design to provide easy of scalability, multiple resiliency, and support for a mix of local and distributed access. Which Fibre Channel topology should you recommend?
A. Meshed
B. Core-edge
C. Cascaded
D. Ring
Correct Answer: A
Explanation/Reference:
Explanation/Reference:
Cascaded fabric Benefits
The benefits of a cascaded fabric include:
· Ability to connect SANs in diverse geographic locations · Ease of scalability for increased server and storage connectivity · Shared backup and management support
· Optimum local performance when communicating devices are connected to the same switch in the cascaded fabric
· Cost efficiency due to the large number of switch ports available · Support for local data access and occasional centralized data access
Meshed fabric Benefits
The benefits of a meshed fabric include:
· Ability to meet multiple data access needs
· Multiple paths for internal fabric resiliency
· Ease of scalability
· Shared backup and management support
· Support for a mix of local and distributed data access (see "Topology data access" (page 33)) · Less impact on performance due to intraswitch traffic
Ring fabric Benefits
The benefits of a ring fabric include:
· Modular design and ease of scalability by adding a switch and other devices · Multiple paths for internal fabric resiliency
· Support for a mix of local data access and occasional centralized data access
Core-edge fabric Benefits
The benefits of a core-edge fabric include:
· Typically, a maximum of two hops between switches · Equal, centralized access to devices in the core
· Increased fabric and switch redundancy with two or more switches in the core · Full many-to-many connectivity with evenly distributed bandwidth ·
Support for centralized and distributed data access needs · Ability to designate an optimally located
Single-switch fabric Benefits
The benefits of a single-switch fabric include:
· Easy installation and configuration of servers and storage · Maximum fabric performance because all communicating devices connect to the same switch · Support for local, centralized, and distributed data access needs
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