September 2022
Beginner
736 pages
20h 54m
English
Content preview from Cisco Data Center Fundamentals
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Chapter 13
Storage Virtualization
When a storage area network (SAN) is designed and built, scalability and reliability are fundamental. The Fibre Channel standards, as defined by the ANSI T11 committee, impose some limitation; for example, the maximum theoretical supported number of domain IDs is 239 per fabric or VSAN. As each Fibre Channel switch is identified by a single domain ID, this limitation also puts a theoretical upper limit on the number of switches per fabric. This directly affects the scalability of the SAN.
Cisco has validated stable and reliable performance in a fabric with up to 100 domain IDs (that is, switches), while other vendors have tested 40 or do not specify a number. As a result, the practical maximum number of switches ...