Tip

Channel directors and Fibre Channel switches

Channel directors and Fibre Channel switches
Rick Cook

A director is essentially a very high reliability multi-port Fibre Channel fabric switch. Typically it offers at least 32 ports with any-to-any connectivity so any devices on the switch can be connected to each other device in a non-blocking manner. Directors also have no single point of failure. All critical components in a director are redundant and will automatically fail over. In addition, directors are designed to allow upgrades and code revisions without shutting down the unit. While directors are expensive, typically 2 to 2.5 times more than the equivalent number of ports on Fibre Channel switches, they are worth considering for mission-critical applications where access to data must be maintained at all cost. Manufacturers of directors also claim their units have lower installation costs because fewer boxes and less cabling is required and lower on-going costs because they are easier to manage.

Among the makers of Fibre Channel directors are

    Requires Free Membership to View

Inrange Technologies Corp. and McData Corp. Both firms' directors are re-sold by companies such as IBM and Sun.


Rick Cook has been writing about mass storage since the days when the term meant an 80K floppy disk. The computers he learned on used ferrite cores and magnetic drums. For the last twenty years he has been a freelance writer specializing in storage and other computer issues.


This was first published in February 2001

There are Comments. Add yours.

 
TIP: Want to include a code block in your comment? Use <pre> or <code> tags around the desired text. Ex: <code>insert code</code>

REGISTER or login:

Forgot Password?
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
Sort by: OldestNewest

Forgot Password?

No problem! Submit your e-mail address below. We'll send you an email containing your password.

Your password has been sent to:

Disclaimer: Our Tips Exchange is a forum for you to share technical advice and expertise with your peers and to learn from other enterprise IT professionals. TechTarget provides the infrastructure to facilitate this sharing of information. However, we cannot guarantee the accuracy or validity of the material submitted. You agree that your use of the Ask The Expert services and your reliance on any questions, answers, information or other materials received through this Web site is at your own risk.