Understanding Compaq StorageWorks RAID Array 4000 and Infrastructure Cabling

Understanding Compaq StorageWorks RAID Array 4000 and Infrastructure Cabling 11
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Figure 7 shows a clustered server environment with NSPOF.
Figure 7. Redundant controllers in a clustered configuration
Since many enterprises’ storage components are located across greater distances, the servers are
connected through single-mode cabling.
Using Infrastructure Cabling
Infrastructure cabling (or cable plant) refers to the complete cabling system within a building or
buildings. This section discusses of infrastructure cabling and includes a scenario in which an
RA4000 uses infrastructure cabling to connect across multiple floors. This example should help
answer the questions:
• Is the existing infrastructure cabling useable?
• Does new infrastructure cabling need to be installed?
• If new infrastructure cabling is needed, what type should be installed?