Data Center Cabling Solutions
How to Choose SAN Fiber Cables

How to Choose SAN Fiber Cables

  • Apr 4, 2013
  • SAN, SAN fiber, storage area network, fiber cables
  • tkelly

Sharing storage adds flexibility because your devices and cables won’t have to be physically shifted from one location to another.  A storage area network, or SAN, can span to distant locations enabling effective replication and disaster recovery.

Your data will be transmitted over your cabling infrastructure. You’ve invested money on your SAN equipment - make sure you design and plan your cabling infrastructure, as well. The TIA-942 design standard of structured cabling recommends the use of a main distribution area, or MDA, which is a central point into which all connections are run. All active ports are replicated in the MDA. This makes it so you won’t have to touch your active equipment when making changes.

Using a structured cabling system, however, does increase the number of interconnects you have. When you add more interconnects you also add more loss. You need to be cognizant of the maximum loss budgets of your fiber jumpers and trunks in order to remain within the optical loss budget.

SAN Fiber

Generally, SAN fiber systems will need to be under 1.5dB to obtain the required distances. Exceeding optical loss budgets can lead to channel errors and downtime. The best way to avoid this is to use a product set that will allow you the benefits of structured cabling without exceeding loss budgets.