Ask the Expert

ATM as a SAN connection is already here

In response to one of your earlier Q&As, you mentioned that ATM was being promoted by storage providers for SAN-WAN applications.

However, all the work is going on in the area of FCIP and iFCP. Is anyone leading FC-ATM inter-working efforts? Is there a reason why no one is promoting that?


There

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is no need to lead an effort to use ATM as a connection between SAN islands. It's already being done. It works, and as far as I know, it has been working since I did my first one back in 1998.

Using ATM has advantages since you can provide for QOS on the connection between storage devices using the ATM network for data replication. The QOS is useful for making sure enough bandwidth is available during peak processing times.

Chris

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This was first published in September 2003

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