![]() This is a general VxVM software restriction.Įncapsulation – Disks to be encapsulated must have two disk-slice table entries free. Simple root disk groups, which are created on a single slice of the root disk, are not supported as disk types with VxVM on Sun Cluster software. The root disk group must be local to the node. One or more local nonroot disks, which you can encapsulate or initializeĪ combination of root and local nonroot disks The root disk, which must be encapsulated The creation of a root disk group is optional.Ī root disk group can be created on the following disks: However, inconsistent names greatly complicate cluster administration and greatly increase the possibility of configuration errors, potentially leading to loss of data. To assign consistent names does not interfere with correct cluster behavior. VxVM does not coordinate these names, so the administrator must ensure that VxVM assigns the same names to the same devices from different nodes. ![]() Use Enclosure-Based Naming of devices, ensure that you use consistent device names on all cluster nodes that share the same storage. If you do not configure the disk group in one of these ways, the devices in the disk group will notīe accessible to any node in the cluster.Ī device group enables a secondary node to host multihost disks if the primary node fails.Ī local-only disk group functions outside the control of Sun Cluster software and can be accessed from only one node at a time. ![]() Guidelines for VERITAS Volume Manager SoftwareĬonsider the following points when you plan VERITAS Volume Manager (VxVM) configurations.Īccessibility to nodes - You must configure all volume-manager disk groups as either Sun Cluster device groups or as local-only disk groups.
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