About the Storage SCP Service

The Storage SCP Service runs as a service on Windows and as a daemon on UNIX. This service listens at a specified TCP/IP port for incoming DICOM files and writes them to the directory that is specified in Configuring Your System to Receive Files. Incoming files are named according to the file's SOP Instance UID value and appended with the specified extension.

Warning
When a file with a duplicate name is retrieved, the original is overwritten. As the file name is based on the SOP Instance UID, this should only occur when retrieving the same file more than once.

For complete details regarding how to configure the characteristics of the Application Entity associated with the Storage SCP service, see Configuring Your System to Receive Files.

Storage SCP Service Permissions

As described in Configuring Your System to Receive Files, you must define a Storage SCP directory to which files are written. The Storage SCP Service requires permissions to:

Create, read, write and delete files in the Storage SCP directory

Create a depot subdirectory in the Storage SCP directory

Create, read, write and delete files in the depot directory

Create and write files in the bin/bin.platform/dicomex directory of the IDL installation directory where platform is the platform-specific bin directory.

When a user installs IDL with administrator or root privileges, the required permissions are set on the dicomex directory to allow access to all users. All users can change Storage SCP service configuration parameters. However, on Windows, only users with administrator privileges have the ability to start and stop the Storage SCP service, which is required for changes to take effect.

Note
The Storage SCP service issues a "Failed. Administrator privileges may be needed." error if a user without administrator privileges tries to start or stop the Storage SCP service.

About the Depot Directory

The depot directory is used to ensure that the full DICOM file is successfully transferred from a remote machine before it is made available in the defined Storage SCP directory. The depot directory is created when you first retrieve files from a remote machine.

Storage SCP Service Log Files

Service events generated by the Storage SCP Service are recorded in two log files located in the bin/bin.platform/dicomex directory of the IDL installation directory where platform is the platform-specific bin directory. These files are called storscp1.log and storscp2.log. Events are logged to one file until the size limit (250 KB) is reached. The other file is then erased (if needed) and subsequent events are logged there.

These log files include information on four types of events:

A start event when the Storage SCP Service is started

An association event when an association is negotiated

A write event when a file is written to the specified storage directory

An error event when a service error occurs

Note
These log files do not contain information from the DICOM Network Services utility. No utility errors or other types of information appear in the Storage SCP Service log files.