HP Medical Archive Solution LDR Attributes, Table 45: LDR Service Attributes

Services and Components

LDR—Local Distribution Router

The Local Distribution Router (LDR) handles content transport on the grid. Content transport encompasses many tasks including data storage, routing, and request handling. The LDR does the majority of the grid’s hard work by handling the heavy data transfer loads and the extensive data traffic functions.

The LDR handles the following tasks:

•Content storage

•Content caching

•Content transfers from another LDR

•Data storage management

•Protocol interfaces (DICOM and HTTP)

LDR Attributes

The LDR supports all the standard service attributes plus additional attributes for component state and status, and a system status entry for open file descriptors.

Table 45: LDR Service Attributes

Attribute	Type / Units	Description		C	T	Alarm
LDR State	Enumerated	Current state of the service:				LDRE
	Text	2 = Online
		1	= Standby
		0	= Offline
LDR Status	Enumerated	The status of the service’s				LDRA
	Text	functionality:
		0	= No Errors
		1	= Waiting for CMSs
		2	= Shutting Down
Storage State	Enumerated	Current state of the Storage compo-				SSTE
	Text	nent of the service:
		0	= Offline
		1	= Standby
		2	= Verify
		3	= Online (Read Only)
		4	= Online

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