An Infoblox Grid is a group of two or more NIOS and NIOS virtual appliances that share sections of a common, distributed, built-in database and which you configure and monitor through a single, secure point of access, the Grid Master. A Grid consists of a master and at least one member. A Grid member can be a single appliance or an HA pair. For information about HA pairs, refer to the Infoblox NIOS Documentation. If you are using NIOS versions earlier than 8.6.x, if you configure an HA pair, both nodes in the HA pair must be NIOS virtual instances. You cannot configure a physical NIOS appliance and a NIOS virtual instance in an HA pair in versions earlier than 8.6.x.
The following figure illustrates a Grid with a NIOS virtual Grid Master, a NIOS virtual Grid Master candidate, and NIOS virtual Grid members. In the illustration, the Grid Master and the Grid Master candidate are NIOS virtual HA pairs in the data center. The NIOS virtual Grid members are in branch offices. Smaller sites can consolidate the NIOS virtual appliances and other virtual applications on one virtualization server. They can manage the Grid members from one central location, the Grid Master.
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