Premium Content

Access "Scalable SANs start with good switch links"

Published: 15 Oct 2012

Last issue we investigated the three different topologies available to the SAN Designer: point-to-point, arbitrated loop and fabric. Fabrics are the key to most contemporary installations, and inter-switch links (ISLs) are crucial to scaling a fabric as your SAN grows. @exb Multiple ISLs increase fabric performance With two 2Gb/s ISLs between two switches, aggregate bandwidth is increased to 4GB/s. @exe You'll want to install an ISL between connecting switches when you reach the limits of a single switch and have to enlarge the fabric. Take the example of an e-mail application that started out being deployed on a single FC switch, but has grown so rapidly that it exhausted the available ports on the single switch. On top of that, upper management has decided that because e-mail is another form of corporate communication, the application should now be considered mission critical. As a result, the initial switch will need to be scaled to satisfy the new availability requirements of the e-mail application, possibly into a dual fabric configuration. Connecting ... Access >>>

Access TechTarget
Premium Content for Free.

By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy

What's Inside


More Premium Content Accessible For Free