| New Data Center Construction
1. Client: A joint-stock commercial bank
2. Project Scale: Tens of millions of RMB
3. Project Features:
● Introduction of a wide area network (WAN) "backbone core network"
Building a hierarchical and modular backbone core network architecture that is "decoupled" from the three-center network for future construction, achieving high availability with multi-service bearing, high-speed data forwarding, and highly flexible and scalable nodes to meet the rapid and flexible access needs of branch offices and corporate mergers and acquisitions.
● Optimized Data Center Internal Zoning Design: Including optimizing VDC and firewall design to achieve loose coupling and scalability in the server zone network architecture, as well as designing new service interconnect zones; separating service traffic from management traffic, designing independent data networks, out-of-band management, heartbeat and other non-service traffic to improve service availability.
● Core layer devices are not interconnected with each other. Instead, the core and aggregation layers are interconnected at Layer 3, enabling equal-cost multi-path (ECMP) routing for optimized traffic distribution.
● Rational Server Zoning: Vertical partitioning is achieved using VDC (Virtual Data Center) technology, implementing a "sandwich" 7-5-2 architecture for layered isolation and management.
● Same-City Center Server Zones with VPC Technology: Virtual Port Channel (VPC) technology is deployed to eliminate loops and provide STP (Spanning Tree Protocol) independent domain isolation, enhancing network stability and efficiency.
| Data Center Business Migration
1. Client: A financial trust company
2. Project Scale: Tens of millions of RMB
3. Migration Strategy:
● Application-Centric Phased Migration: Migration is organized in stages and batches based on application dependencies and host types.
● Sequential Relocation: Applications and servers are migrated first, followed by foundational infrastructure (networking, centralized storage, virtualization, and centralized backups).
● System Interdependency Consideration: Downstream systems are prioritized, followed by upstream systems, while accounting for parallel relationships between components.
● Active-Active Data Center Synchronization: Migration is timed to align with the completion of the active-active data center build, ensuring architectural stability and minimizing risks. Comprehensive migration testing is conducted pre-relocation to validate data integrity and system functionality.
| Data Center Transformation
1. Client: A joint-stock commercial bank headquarters data center
2. Project Scale: Tens of millions of RMB
3. Category: Architectural adjustment and disaster recovery center construction
4. Technical Features:
● Interconnection Between Primary and Backup Centers in the Same City:The disaster recovery core and the main core achieve Layer 3 interconnection via DWDM links; while the production service area and core service area of the new disaster recovery center adopt Layer 2 connectivity to interface with the primary/backup centers. By implementing an effective Layer 2 broadcast domain suppression solution, seamless Layer 2 interconnection is achieved, ensuring stable operation of the original primary/backup center services.
● Implementation of Multi-Vendor Heterogeneous Device Integration: The same-city active-active production zone and core business zone utilize high-performance 10Gbps firewalls as regional firewalls. The integration of equipment from different vendors posed challenges in solution design and compatibility testing. Through meticulous testing and preparation, the equipment was successfully deployed and interconnected.
● Adoption of Active-Active Technical Architecture: The new architecture enhances the flexibility and switching capabilities of the disaster recovery center, laying the foundation for achieving active-active and multi-active operations between primary and backup centers, as well as supporting future business expansion.
| Cloud Center Construction and Operation
1. Client: A Chinese government ministry
2. Project Scale: Tens of millions of RMB
3. Category: Cloud center construction and operation
4. Technical Features:
● Elastic Scaling Service (AS): Automatically adjusts resources based on business needs and policies, allowing resources to scale up with increasing workload and scale down when demand decreases, reducing cloud costs while ensuring stable and healthy business perations.
● Elastic Volume Service (EVS): Provides highly reliable, high-performance, and elastically scalable block storage services for elastic cloud servers and bare metal servers.
● Virtual Data Center (VDC): Enables resource allocation and management in tiered operational scenarios, making management and resource distribution more flexible and efficient.
● The virtualization infrastructure in the business application zone utilizes commercial hardware without dependence on specific vendors. For non-virtualized underlying hardware such as business support zones and database servers, corresponding components can be employed to directly integrate bare metal servers into the cloud platform, achieving comprehensive cloud management.
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