Ask the Expert

What is the difference between WAN and LAN in IP storage networking?

What's the difference between WAN and LAN in IP Storage networking?

    Requires Free Membership to View

Using a local area network (LAN) at the wire-speeds of Gigabit or even multi-Gigabit with trivial latencies is much faster that riding on a wide area network (WAN), which at best (OC-3 @ 155.52 Mbps and really expensive) is still below LAN capabilities.

However, you could still deploy a well-designed Point-to-Point T1, Bonded-T1 or T3 WAN connection -- which is more affordable -- and possibly use hardware-assisted NICs to offload the TCP and iSCSI traffic while still delivering an acceptable performance. If your T lines are Point-to-Pop instead, you may experience performance issues due to the nature of the connection.

IP storage applications that use WANs are generally for mirroring, replication, snapshot or DFS requirements that are part of an organization's DR planning. In the past three years, purpose-built appliances that accelerate and optimize WAN connections have provided a vast, high-speed cache along with intelligent algorithm to shrink the packets and improve the performance.

This was first published in May 2007

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: