Medical Archive Solutions User Guide

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HP Medical Archive
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
Text
Current state of the service:
2=Online
1 = Standby
0=Offline
LDRE
LDR Status Enumerated
Text
The status of the service’s
functionality:
0 = No Errors
1 = Waiting for CMSs
2=Shutting Down
LDRA
Storage State Enumerated
Text
Current state of the Storage compo-
nent of the service:
0=Offline
1 = Standby
2=Verify
3 = Online (Read Only)
4=Online
SSTE