Q

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

Using a LAN in IP storage will usually result in less network latencies than a WAN.

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

Dig deeper on Storage Area Network (SAN)

Pro+

Features

Enjoy the benefits of Pro+ membership, learn more and join.

Have a question for an expert?

Please add a title for your question

Get answers from a TechTarget expert on whatever's puzzling you.

You will be able to add details on the next page.

0 comments

Oldest 

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:

MicroscopeUK

SearchCloudProvider

SearchSecurity

SearchStorage

SearchNetworking

SearchCloudComputing

SearchConsumerization

SearchDataManagement

SearchBusinessAnalytics

Close