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Attributes
Utilization
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Node

Each node in the cluster will have an entry in the nodes section.

The name of a node may be different from the node ID. The name is taken from one of these locations:

  1. The value stored in corosync.conf under ring0_addr in the nodelist, if it does not contain an IP address
  2. The value stored in corosync.conf under name in the nodelist
  3. The value of uname -n

Attributes

Node attributes are a special type of option that applies to a node.

Beyond the basic definition of a node, the administrator can describe the node’s attributes, such as how much RAM, disk, what OS or kernel version it has, perhaps even its physical location. This information can then be used by the cluster when deciding where to place resources.

Utilization

To configure the capacity a node provides and the resource’s requirements, use utilization attributes. You can name the utilization attributes according to your preferences and define as many name/value pairs as your configuration needs. However, the attribute’s values must be integers.


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