Administration Guide

Understanding the SDR

The SDR is composed of objects and their attributes. Objects differ according to class. For example, an object belonging to the node class has a different set of attributes from an object in the adapter class.

Objects are instances of the object class. Some classes have many more objects than others. For example, there is only one object in the SP class for each SP system, but there are as many objects in the node class as there are nodes in the system.

An SDR object, however, is really only a specific set of attributes. Object attributes contain the meaningful data. To illustrate, Figure 47 compares two object classes in a sample configuration, the Frame class and the Adapter class.

Figure 47. Comparing two SDR classes

View figure.

The SP system provides system partitioning as a method for organizing the system into groups of nodes for various purposes such as testing new software and creating multiple production environments. Therefore there are two types of SDR classes:

• System classes (contain objects that are common to all system partitions)
  • |Class = CSS_Adapter_Info
  • |Class = CSS_Type
  • Class = Frame
  • Class = HSD_Minor_Number
  • Class = NodeControl
  • Class = SP
  • Class = SP_ports
  • |Class = SP_Restricted
  • Class = Switch
  • Class = SysNodeGroup
  • Class = Syspar_map
  • Class = VSD_Cluster_Info
  • Class = VSD_Minor_Number
• Partitioned classes (contain objects that are specific to a system partition. The definition, a Partitioned class is common to all system partitions, but each system partition contains different objects for the class.)
  • Class = Adapter
  • |Class = Aggregate_IP
  • Class = DependentAdapter
  • Class = DependentNode
  • Class = EM_Condition
  • Class = GMT_Global_smt_nds
  • Class = GS_Config
  • Class = host_responds
  • Class = HSD_Table
  • Class = Network
  • Class = Node
  • |Class = Node_VPD
  • Class = NodeExpansion
  • |Class = NodeGroup
  • Class = PMAN_Subscription
  • Class = pmanrmdConfig
  • Class = ProcessorExtensionNode
  • Class = RVSD_Restrict_Level
  • Class = Subnet
  • Class = Switch_adapter_port
  • Class = Switch_partition
  • Class = Switch_plane
  • Class = switch_responds
  • Class = Syspar
  • Class = Syspar_ports
  • Class = TS_Config
  • Class = TS_Tunable
  • Class = Volume_Group
  • Class = VSD_Fence
  • Class = VSD_Global_Volume_Group
  • Class = VSD_Table

For a complete list of attributes for each object, see SDR classes and attributes.

In addition, there is a set of partitioned classes that are used by Event Management application programs:

• Class = EM_Resource_Class
• Class = EM_Resource_ID
• Class = EM_Resource_Monitor
• Class = EM_Resource_Variable
• Class = EM_Structured_Byte_String

For more information about these classes and their attributes, see RSCT: Event Management Programming Guide and Reference.