Dell DX6004S DX Object Storage Administration Guide - Page 14
Warning, Cluster Settings UUID
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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 Copyright © 2010 Caringo, Inc. All rights reserved 9 Version 5.0 December 2010