NAN Data Transport System

Overview

The Network for Advanced NMR Data Transport System (NDTS) enables automated harvesting of NMR acquisition data from spectrometer workstations and delivers it securely to the NAN Repository. Facility Managers are responsible for installing and managing the local components of the system, ensuring connectivity, and supporting user access to collected data.

System Architecture and Data Flow

The NDTS system consists of local and central components working together to collect, transfer, store, and index NMR datasets

Component	Location	Role
Daemon	Spectrometer Workstation	Detects completed experiments, associates metadata, and sends data to the Gateway. Sends heartbeat information to the Gateway Pull user information from the Gateway
Gateway	Within NMR facility network	Receives data from all Daemons and relays it to the Receiver. Pulls user information from the NAN Receiver
Receiver	UCHC Data Center	Accepts experiment data and metadata from Gateways Packages user information destined for the spectrometer workstations
Parser	UCHC Data Center	Parses datasets to extract additional metadata, writes database entries, and stores dataset files to primary and disaster recovery storage appliances
PostgreSQL Database	UCHC Data Center	Stores datasets and their structured metadata
Primary Storage	UCHC Data Center	Stores canonical copies of all collected experimental data
Disaster Recovery Storage	Geo-dispersed	Maintains redundant backups of all experimental data on a WORM S3 bucket
Elasticsearch Database	UCHC Data Center	Indexes statistics about harvested datasets and heartbeat information for visualization from the virtual NAN Operation Center (vNOC)

Data Flow Summary:

1. A user completes an acquisition on a spectrometer.
2. The Daemon detects the completed experiment and sends it to the Gateway.
3. The Gateway transmits the data to the Receiver at UCHC.
4. The Receiver accepts the data and hands it off to the Parser.
5. The Parser extracts metadata and stores it in the PostgreSQL and Elasticsearch databases.
6. The experiment data is stored in primary storage and backed up to disaster recovery storage.
7. The data becomes visible in the NAN Portal (e.g., Data Browser, vNOC) within seconds.

Failures at any stage result in data being spooled locally and retried automatically.

Facility Manager Responsibilities

Facility Managers are expected to:

• Install and configure Gateway and Daemon software
• Monitor daemon heartbeat and transmission status
• Support users in selecting correct metadata (e.g., NMRhub usernames, projects, samples)
• Reassign “unselected” or misattributed data
• Use the Facility Dashboard to review health status and harvested experiments

User Guide Sections

Use the links below to access detailed instructions for each component or task:

• Installing and Updating Daemon and Gateway
• NDTS Daemon installation components
• Configuring the Daemon
• Running and Monitoring the Daemon
• Using the Workstation UI
• Understanding Experiment Harvesting
• Gateway Operation and Management
• Accessing Collected Data
• Logging and Audit Trail
• Appendix and Troubleshooting

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For assistance, contact the NAN Repository administrator or submit a ticket from the Facility Dashboard.