Dell NetWorker 19.9 Administration Guide

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NMC Server and Storage Node Settings

To set the server in NMC, select Server properties in the Configuration tab (Diagnostic mode).

Figure 1. NMC Server settings

To set storage node in NMC, select Storage node properties in the Configuration tab (Diagnostic mode).

Figure 2. NMC Storage Node Settings

DCC can be enabled or disabled based on the settings of server and storage Node.

Table 1. Enabling and Disabling DCC based on Server and Storage node settings
DCC check on server	DCC check on storage node	Resultant DCC
On	Off	Off
On	On	On
Off	On/Off	Off
Interval 1	Interval 2	Whichever is greater

When DCC identifies any unreachable device due to various reasons, it moves the device to suspected state and it sets two attributes Suspected device and Suspected mark time.

Suspected device and suspect time attributes are set when the device state is changed to suspected state from normal state and these attributes are cleared when the device is available.
If there is any device that is in suspected state and is moved to service mode manually, suspected flag is cleared off and there won't be any DCC check on that going forward. DCC starts checking this device only if it again moves to enabled state.