Dell DX6000 Administration Manual page 14

The Cluster Settings page enables you to make runtime changes to several configuration
parameters and have these changes persisted in the cluster across reboots. The first time you save
settings on the Cluster Settings page, the Cluster Settings UUID field displays the UUID of the
anchor stream that contains cluster settings.
The following figure shows an example.
You can optionally create an empty anchor stream in the cluster during initial configuration and set
that UUID as the clusterSettingsUUID in advance of any actual updates.
Warning
If you are using a CSN, immediately enter cluster settings UUID on the Configuration
page under the Content Storage tab page of the CSN Console. If you are not using a
CSN, immediately enter the cluster settings UUID in your node or cluster configuration
file. If you don't save the UUID, unpredictable behavior can result, including losing all your
cluster-wide settings when you reboot the node.
Note
Dell recommends you do not set cluster-wide persisted parameters in individual node
configuration files because these values must be the same for the whole cluster. Any
values specified in a node configuration file are overridden by the cluster settings from the
Admin Console.
The clusterSettingsUUID parameter enables all nodes in the cluster to use the same settings
every time they reboot. Cluster nodes broadcast cluster settings over multicast. The reason
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Version 5.0
December 2010