In-depth Comparison of Enterprise Private Cloud Platforms: ZStack vs TStack

Comparison between ZStack and TStack (Tencent Cloud Private Cloud)

Due to the specific requirements of financial clients, a selection process for third-party private cloud platforms is necessary during private delivery. This comparison focuses primarily on ZStack and TStack:

In the private/hybrid cloud market, ZStack (Yunzhou Tech, backed by Alibaba Cloud) and TStack (Tencent Cloud’s proprietary full-stack cloud solution, now mostly integrated into the TCE/TCS ecosystem) represent two typical categories. The former is known for “productization, lightweight, independent vendor,” while the latter focuses on “full-stack capabilities, same source as public cloud, and big tech ecosystem.”

1. Core Positioning and Background

2. Comparison of Architecture and Technical Features

2.1 Architecture Design

• ZStack:
  • Microservices Architecture: All components are process-based with no external dependencies (no need for separate MySQL or RabbitMQ deployment), featuring one-click installation and deployment completion within 30 minutes.
  • Stateless Design: Management nodes support High Availability (HA) with automatic failover.
  • Seamless Upgrades: Supports seamless online upgrades without business interruption.
• TStack (TCE):
  • Complex Distributed Architecture: Relies on a large number of middleware components; deployment usually requires professional team intervention with a longer cycle (days/weeks).
  • Same Source as Public Cloud: Underlying technology is highly consistent with Tencent Cloud Public, suitable for scenarios requiring “hybrid cloud consistency.”
  • Modular Delivery: Allows selection of Enterprise, Big Data, or AI editions, but high integration leads to relatively high coupling.

2.2 Virtualization and Containers

3. Xinchuang (Localization) and Ecosystem Compatibility

With the deepening of domestic requirements, Xinchuang capabilities have become a critical factor in selection.

• ZStack:

  • Full-Stack Xinchuang: Claims “One Cloud, Eight Chips,” fully supporting domestic chips such as Phytium, Kunpeng, Hygon, Loongson, Zhaoxin, and Sunway.
  • Ecosystem Adaptation: Adapted to 140+ domestic software and hardware products (OS, databases, middleware).
  • Advantage: As an independent vendor, response speed for adaptation to niche domestic chips and operating systems is extremely fast with high flexibility.

• TStack (TCE):

  • Mainstream Xinchuang: Focuses on supporting mainstream domestic chips like Kunpeng and Phytium (especially vendors with strategic partnerships with Tencent).
  • Ecosystem Binding: Deeply integrated with the Tencent Cloud ecosystem (e.g., TDSQL database, TDW big data), performing excellently in Tencent-based Xinchuang solutions.
  • Advantage: In large Xinchuang projects for finance and government, can provide full-link backstop services from chip to application.

4. O&M and Delivery Experience

5. Cost Analysis (TCO)

• ZStack:

  • Licensing Model: Usually licensed by CPU socket or node count, transparent pricing.
  • Hardware Requirements: Relatively low hardware configuration requirements, strong capability for legacy hardware reuse, can use generic x86 servers.
  • Labor Cost: Simple O&M significantly reduces reliance on senior operations experts.
  • Overall Assessment: Low initial investment, low long-term holding cost, suitable for budget-sensitive projects.

• TStack (TCE):

  • Licensing Model: Packaged total solution, including software licensing, implementation fees, and maintenance service fees, higher price.
  • Hardware Requirements: Recommends dedicated hardware or high-performance servers, high requirements for network architecture (often requiring 10GbE起步).
  • Labor Cost: Requires a dedicated cloud management team, high training costs.
  • Overall Assessment: High initial investment, suitable for large projects with sufficient budget pursuing ultimate stability and full-stack capabilities.

6. Selection Decision Matrix

Please refer to the table below based on your actual scenario:

7. Summary and Recommendations

• Choose ZStack if:

  • You wish to rapidly build a private cloud and are tired of complex OpenStack deployments.
  • Your primary goal is VMware replacement to reduce licensing costs.
  • Your team size is small and lacks dedicated cloud operations experts.
  • You require high autonomy/controllability and a neutral third-party software vendor.

• Choose TStack (TCE) if:

  • You are a large group, central SOE, or financial institution with near-stringent requirements for stability.
  • You need full-stack capabilities (not just VMs, but also PaaS services like big data, AI, microservice governance).
  • Your strategic direction is hybrid cloud, and you prefer using Tencent Cloud Public as the public side.
  • You have sufficient budget to form a professional cloud management team and purchase advanced vendor services.

💡 Final Recommendation:

In the current market environment, “Small & Beautiful” and “Big & Complete” coexist. For 80% of generic enterprise scenarios, ZStack is often the more pragmatic and efficient choice;而对于那 20% 关乎国计民生、业务极度复杂的核心场景，TStack (TCE) 的底蕴则不可或缺。建议在选型前进行 POC 测试，重点验证部署效率、信创兼容性及实际业务负载下的性能表现。

Actually, in private deployment scenarios, ZStack and TStack already cover the IaaS layer (VMs and distributed storage) and the PaaS container layer. The only missing piece is the RDS platform. Therefore, when adding a third-party RDS platform to complement these two, attention must be paid to compatibility. Generally, ZStack is paired with Woqu, and TStack is paired with ActionTech.

After using both Woqu and ActionTech, I recommend using the Woqu platform, mainly because it performs better in terms of platform features, high availability, and UI usability. It supports MySQL, Oracle, SQL Server, PostgreSQL, Redis, MongoDB, OceanBase, TiDB, ES, RabbitMQ, Kafka, RocketMQ, etc.