The commands issued to the DMI by management applications and components are composed of data structures called command blocks. A typical DMI command contains the following:

• A standard command block, such as the DmiMgmtCommand block. This block appears first in the command block and provides a command code that indicates the specific operation to perform and the composition of the remainder of the command block.

• One or more blocks pertaining to a specific command.

• Any data associated with the command-specific blocks.

This chapter describes the command blocks used with the DMI. There are three types of DMI command blocks:

• Common command blocks 
  Management Interface (MI) command blocks
  
  Component Interface (CI) command blocks

  Each command block described in this chapter has the following information presented in tabular format:

  Offset

  Indicates the location of the element in the buffer. The offset is the number of octets from the start of the buffer.
  Size
  Indicates the size of the element in octets.
  Type
  Indicates the type of element. Possible types include:

  INT

  Integer
  OFFSET
  Offset to another element in the block
  PTR
  Pointer to a buffer
  STRUCT
  Command block structure
  TIMESTAMP
  Timestamp block
  Variable name
  Indicates the name of the element

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