Quantum 3.5.1 User Manual

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Chapter 1  Introduction
StorNext User’s Guide
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reconfigure applications to retrieve data from disparate locations. 
Instead, applications continue to access files normally and SNSM 
automatically handles data access – regardless of where the file resides. 
As data movement occurs, SNSM also performs a variety of data 
protection services to guarantee that data is safeguarded both on site and 
off site.
About Distributed LAN 
Clients
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StorNext supports distributed LAN clients. Unlike a traditional StorNext 
SAN client, a distributed LAN client does not connect directly to 
StorNext via fibre channel or iSCSI, but rather across a LAN through a 
gateway system called a distributed LAN server. The distributed LAN 
server is itself a directly connected StorNext client, but it processes 
requests from distributed LAN clients in addition to running 
applications. 
Any number of distributed LAN clients can connect to multiple 
distributed LAN servers. StorNext File System supports Distributed LAN 
client environments in excess of 1000 clients, and should support 
deployments as large as 5000 clients. File system aggregate throughput is 
not adversely impacted.
Besides the obvious cost-savings benefit of using distributed LAN clients, 
there will be performance improvements as well. 
Distributed LAN clients must be licensed in the same way as StorNext 
SAN clients. When you request your permanent StorNext license, you 
will need to specify the number of distributed LAN clients you plan to 
use. Naturally, you can always purchase additional distributed LAN 
client licenses as your needs expand. For more information about 
StorNext licensing, see 
StorNext provides distributed LAN client information via the status 
monitors on the StorNext home page, SNSM home page, and SNFS home 
page. More detailed information is available through the Clients Report 
and the Distributed LAN Client Performance Report. For more 
information about StorNext reports, see 
Before you can fully use distributed LAN clients, you must first configure 
a distributed LAN server and distributed LAN clients as described in the 
StorNext Installation Guide.