Abstract

Party and government agencies, central state-owned enterprises, and financial‑IT innovation data center renovation projects impose stringent requirements on time‑synchronization systems, including full domestic production of both software and hardware, security and controllability, and audit compliance. This paper, in conjunction with… GB/T Information Technology Innovation Infrastructure Standards, Security Classified Protection 2.0 Level-3 standard, comprehensively reviewing the design of the time‑synchronization system for the information‑technology‑innovation data center, DNTS-9HG A comprehensive implementation guideline covering the deployment of domestically developed servers, adaptation to domestic operating systems, integration with monitoring platforms, and acceptance testing, which specifies standardized requirements for hardware selection, network architecture, security policies, and documentation archiving, thereby providing a standardized reference for the construction and acceptance phases of information technology innovation (ITI) projects.

I. Mandatory Specification Requirements for the Construction of a Time-Synchronization System in an Information Technology Innovation Data Center

1. Hardware Localization: The time server’s processor, the satellite receiver chip, and the firmware are all domestically produced; overseas sourcing is prohibited. x86 Architecture, GPS Standalone timekeeping device;

2. Time‑source autonomy and controllability: Prioritize the pure BeiDou‑only timing mode; if multi‑mode operation is required, BeiDou must serve as the primary time source. GPS For backup only;

3. Security Control Requirements: The device supports hierarchical access control, encrypted time‑based authentication, and the retention of full‑volume operation and time‑stamped logs. ≥1 year;

4. System Compatibility: Compatible with Kylin, UOS, domestic server operating systems, domestic virtualization platforms, and domestic databases.

5. Operations and Maintenance Auditing: Integrated with a domestically developed time-series monitoring platform, it centrally collects synchronized data across the entire network and supports exporting audit reports.

II. Standardized Selection Plan for Time-Synchronization Hardware in the Indigenous Innovation Data Center

1. Core Primary Clock: DNTS-9HG Hai Guang / Phytium XinChuang time server, deployed in a redundant dual‑server configuration;

2. Security Protection Suite: Supporting Facilities for Classified and Other High-Level Data Centers DNSIS-612A Generative satellite security isolation device;

3. Terminal synchronization support: implemented on domestic servers and virtual machines. NTP Client-side synchronization, paired with high-precision services. PTP Expansion module;

4. Visualization support: The dispatch center and server room are equipped with domestically produced digital sub‑clocks, providing unified display of standard time.

5. Calibration tool: DNHH-9-B Single‑北斗 handheld timing device, used for verifying time‑synchronization accuracy during project acceptance.

III. DNTS-9HG Implementation Process for Deploying Indigenous Innovation Servers

1. Data Center Rack Installation: 1U Standard domestically produced XinChuang server rack installation, with dual power supplies connected to two independent circuits. UPS Power supply, reliable grounding;

2. Beidou antenna installation: Install an anti‑interference Beidou mushroom‑type antenna in an open area on the rooftop, and connect the feed line. DNSIS Connect the server after the isolation device.

3. Device Initialization Configuration: Log in to the domestic version Web Management interface, select Phytium. / In the Haiguang hardware mode, configure a single‑Beidou‑priority time‑synchronization strategy.

4. Domestic system adaptation and debugging: configuration for Kylin and UOS servers NTP/PTP Synchronize the client to test the stability of time-series synchronization.

5. Monitoring platform integration: will DNTS-9HG Connect to the intelligent, network-wide time synchronization and monitoring platform, and activate. SNMP Data collection;

6. Security Policy Configuration: Create tiered administrator accounts and enable them. MD5 Encrypt the time synchronization and set the alert threshold for synchronization offset.

7. 72 Hour-long continuous aging test: equipment in continuous operation 72 Hours, record synchronization deviations, satellite signals, and device load data, and retain test reports.

IV. Core Metrics for Acceptance Testing of Indigenous Innovation Projects

1. Domestication Qualification Verification: Inspection DNTS-9HG China‑made IT innovation compatibility certification, list of domestically produced chip components, and proof of the absence of foreign‑origin firmware;

2. Time synchronization accuracy testing: using DNHH-9-B Handheld clock comparison on site, NTP Deviation ≤1ms， PTP Deviation ≤20ns；

3. Log audit testing: Simulate device operations and synchronization anomalies to verify the complete storage, retrieval, and export of logs.

4. Fault‑tolerance testing: Disconnect the power supply of a single server and sever the satellite signal to verify that the backup equipment automatically switches over with no service interruption.

5. Domestic OS Compatibility Testing: The synchronization functionality was verified to operate without anomalies across multiple versions of Kylin and UOS.

V. Checklist of Essential Documents for Project Archiving

1. Original manufacturer qualification documents: IT innovation compatibility certificate, third-party accuracy test report, and product software–hardware localization statement.

2. Deployment and construction documentation: data center architecture topology diagram, antenna installation construction drawings, and equipment configuration parameter backup files.

3. Acceptance Test Report: 72 Hourly aging test records, on-site calibration comparison reports for handheld clocks, and alarm function test records;

4. Operations and Maintenance Manual: Device-specific O&M procedures for domestically developed IT equipment, and a guide to exporting audit reports from the monitoring platform.

VI. Standards for Post-Implementation Operations and Maintenance of Indigenous Innovation Systems

1. Quarterly Inspection: Conduct on-site verification every quarter of the Beidou antenna signal strength, server synchronization offset, and log storage capacity.

2. Annual firmware update: The manufacturer will push firmware updates compatible with the latest domestically developed operating system, enabling secure on-site upgrades.

3. Annual Time-Series Audit: Export the year‑long time-series synchronization logs and complete the annual compliance self‑assessment and archiving for the information technology innovation project.

4. Fault Handling: For hardware failures, the entire unit is replaced with a brand-new one; on-site repairs are not performed, ensuring the integrity of the domestically developed environment in the data center.

Conclusion

In accordance with the standardized construction specifications for timing systems in domestically developed IT infrastructure data centers, it adopts DNTS-9HG A time server dedicated to the information technology innovation (ITI) ecosystem, when paired with security isolation, monitoring, and calibration equipment, can simultaneously meet the multifaceted acceptance criteria for domestic substitution, security, and auditing, thereby reducing construction and compliance risks in ITI transformation projects.