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    <title>Best Practices for Discovering a Fabric </title>
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<a name="wp226863"> </a><h1 class="pTitle">
Best Practices for Discovering a Fabric

</h1>
<a name="wp226864"> </a><p class="pBody">
Cisco DCNM-SAN Server monitors multiple physical fabrics under the same user interface. This 
facilitates managing redundant fabrics. A licensed Cisco DCNM-SAN Server maintains up-to-date 
discovery information on all configured fabrics so device status and interconnections are immediately 
available when you launch Cisco DCNM-SAN Client.

</p>
<a name="wp226865"> </a><p class="pCaution">
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<strong>Caution	&nbsp;&nbsp;&nbsp;</strong>
</td>
<td>
<p>If the Cisco DCNM-SAN Server’s CPU usage exceeds 50 percent, it is recommended that you switch to 
a higher CPU-class system. 
</p>
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</p>
<a name="wp226869"> </a><p class="pBody">
We recommend that you use these best practices for discovering your network and setting up 
Performance Manager. This ensures that Cisco DCNM-SAN Server has a complete view of the fabric. 
Subsequent Cisco DCNM-SAN Client sessions can filter this complete view based on the privileges of 
the client logging in. For example, if you have multiple VSANs in your fabric and you create users that 
are limited to a subset of these VSANs, you want to initiate a fabric discovery through Cisco 
DCNM-SAN Server using a network administrator or network operator role so that Cisco DCNM-SAN 
Server has a view of all the VSANs in the fabric. When a VSAN-limited user launches Cisco 
DCNM-SAN Client, that user sees only the VSANs they are allowed to manage.

</p>
<a name="wp226870"> </a><p class="pBodyAutonumNoRule">
<strong>Note	&nbsp;&nbsp;&nbsp;</strong> Cisco DCNM-SAN Server should always monitor fabrics using a local switch account, do not use a AAA 
(RADIUS or TACACS+) server. You can use a AAA user account to log into the clients to provision 
fabric services. 

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<hr /><br><p class="pBody">Copyright 2010-2013, Cisco Systems, Inc. All rights reserved.</p> 

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