When the key of the bank's vault slipped from the hands of Western giants, Chinese engineers used lines of code to rebuild the cornerstone of the financial lifeline.

This is not a simple replacement, but a gene recombination of the database architecture-the separation of storage and computing accurately cuts the cocoon of the coupling of traditional databases like a scalpel, releasing the digital wings of financial innovation.

I. Migration of financial core systems: Huawei GaussDB's breakthrough

in the wave of financial innovation, the migration of the bank's core system is like changing the aircraft engine at an altitude of ten thousand meters-not only to ensure the continuity of business, but also to achieve a leap-forward performance upgrade. Huawei GaussDB used the distributed storage and computing separation architecture as a scalpel and delivered an amazing answer sheet.

1. "heart transplantation" of large State-owned banks"

ICBC's credit and precious metal trading system is like the financial heart. Huawei GaussDB has realized the migration of more than 30 core systems with "full stack independent innovation", supporting the global 7 × 24-hour service, RPO = 0 (zero data loss). What is more shocking is that ICBC has standardized the migration process through its self-developed automated tool chain. It has been successfully put into operation in more than 130 business systems, covering all scenarios from office systems to key businesses.

The new generation of personal business core system of postal savings bank can be called "flow monster": it processes 2 billion transactions per day, with a peak throughput of 67000 transactions per second, and calmly responds to the data torrent of 0.65 billion customers. Behind this is the dimension reduction impact of the GaussDB distributed architecture on the traditional IOE architecture-the cost is reduced by 40%, and the fault recovery speed is increased by 30 times (RTO<1 second).

2. "agile genetic transformation" of joint-stock banks"

the payment business of China Merchants Bank's "palm life" and "Mobile banking" apps achieves the powerful performance of peak TPS 3500 and average daily 85 million requests under the support of GaussDB. And Huaxia Bank's debit card system reform is a textbook-level demonstration:

with the architecture of dual active and remote disaster recovery, data sharding horizontally expands the full-stack domestic software and hardware to significantly reduce costs, on the contrary, it has improved its performance and become the first joint-stock bank to realize distributed transformation in the core system of debit cards.

3. "data value awakening" of regional banks"

weihai city commercial bank's "Lake warehouse integration" platform won 2022 big data "Xinghe" benchmark case Award, the secret lies in:

GaussDB(DWS)+ FusionInsight MRS is used to build a unified data base. Kafka + Flink is used to achieve full-link second-level response to customer portraits. Accurate marketing improves per capita AUM by 24%, real-time risk control makes credit risk "visible"

these cases reveal an iron law: the domestic replacement of the financial core system is no longer "usable", but "stronger"-the distributed computing separation architecture is becoming a synonym for high performance and high availability.

II. Architecture of separation of storage and calculation: How Huawei's technology blade cuts off the traditional shackles

computing separation is not a simple physical splitting, but reconstructs database DNA through three engines. Huawei's solution is excellent.

(1) Structural Revolution: From "tying hands and feet" to "showing fists and feet"

the traditional centralized database is like a single cell-storage and computing are locked in a single cell. GaussDB's memory-Computing separation architecture is like a symphony orchestra:

Coordinator Node: focuses on SQL parsing and query optimization, and does not touch the actual Data Node: runs computing tasks in a distributed manner, and ensures Data consistency through the Paxos protocol. Music Score Library (distributed storage layer): Huawei OceanStor or object storage supports data persistence and independent capacity expansion.

This decoupling makes scale-out like adding musicians-scale-out to 2048 nodes online without interrupting PB-level data migration. The practice of Postal Savings Bank proves that the storage cost is reduced by 90% (LZ4 compression algorithm is used for time series data), and the query performance is improved instead.

(2) Financial-grade high availability: more reliable protection than "Diamond"

when the two activities in the same city become the financial demand, Huawei offers the "triple protection shield":

1. Deploy three AZ zones in the same city: two business zones + one arbitration zone. The Quorum protocol guarantees that RPO = 0 in case of single AZ failure.

2. Master + slave + Handoff triple protection: the data node has an original redundancy mechanism, and any node fails.

3. Full-link encryption: end-to-end encryption for data transmission, computing, and storage, with CC EAL4 + (the highest security authentication in China)

the zero data loss of ICBC is not accidental-this is the inevitable result of architecture-level guarantee.

(3) mixed load HTAP: The Art of both fish and bear's paw

the separation of TP and AP in traditional databases is like "schizophrenia". Huawei realizes "personality fusion" by using mixed row and column storage engine and Materialized view ":

in the practice of a large bank, GaussDB migrates 240 nodes of traditional data warehouses to a unified platform, and uses parallel loading tool (GDS) to import TB/hour data. Weihai Commercial Bank also makes real-time decision to manage cockpit data.

(4) structural revolution of inclusive finance: from "impossible triangle" to "infinite possibility"

when the flood of distributed architecture breaks down the impossible triangle of "performance, scalability and cost", Weizhong Bank feeds back the financial epic with ten-year long March writing technology:

the world's first distributed Bank core system carries 0.42 billion users +5 million small, medium and micro enterprises with a daily transaction peak of 1.4 billion, Achieving 99.999% reliability (exceeding telecom-level standards) the average annual IT cost per household is only 2 yuan, less than 1/10 of the industry average

the way to break the situation in the data flood: Facing the explosive growth of data volume from 10PB to 110PB under the AI wave, the original construction site architecture encountered four difficulties:

business continuity is challenged: in the integrated storage and computing architecture, the failure rate of a single disk is relatively high, and the availability rate of a single disk is about 99.9%. Server failure will trigger the switchover between the primary and secondary databases, causing business jitter, high O & M pressure. Low resource utilization: computing and storage resources are strongly bound, and the resource utilization of each node is uneven. The average CPU utilization of more than 80% devices is less than 10%, resulting in high resource costs. Poor resource scalability: the capacity of a local disk is fixed, resulting in an upper limit on the capacity and performance of a single instance, which makes it impossible to flexibly scale in. Low node reconstruction efficiency: local disk server nodes need to be fully copied in data reconstruction scenarios. The reconstruction time is as long as 2 hours/TB. Database instances are at high risk during Reconstruction. If a secondary failure occurs, the availability of the database is affected.

Huawei OceanDisk smart disk frame dimension reduction strike:

resonance fission between science and technology and Pratt & Whitney

when the Diskless architecture of the separation of storage and computing penetrates the financial cloud layer, the technological resonance between Weizhong Bank and Huawei OceanDisk is taking place:

extremely fast: 175Gb/s with wide support loans to help the poor and farmers reach the account in seconds extremely economical: 23:2 large proportion EC algorithm, lossless data compression, saving cabinet space and energy consumption extremely stable: professional storage disk/Architecture/system multi-level reliability design, can provide 99.999% reliability.

When the flood of distributed architecture breaks down the impossible triangle Dyke of "performance, scalability, and cost", The Diskless Diskless Diskless architecture with separation of storage and computing reshapes the channel of data rivers like a needle in the sea. The technological resonance between Weizhong Bank and Huawei OceanDisk smart disk frame penetrates the financial cloud-trillions of transactions are dancing on the stage of decoupling of depository and computing, and the sunshine of inclusive finance is passing through technological cracks, illuminate every corner that desires hope.

III. Challenges of domestic substitution and Huawei's way to break the game

the migration of financial databases is like walking a steel wire at high altitude. Huawei uses the combination of "Technology + ecology" to resolve the four major life and death disasters.

(1) pain of migration: from "thoracotomy" to "minimally invasive intervention"

traditional migration needs to be shut down for several days, but Huawei's solution is like minimally invasive surgery:

SQL compatibility engine: Over 92% Oracle syntax automatic conversion, smooth migration of stored procedures/triggers full-link toolkit: ICBC developed automated testing tools, supporting standardized transformation process gray switching technology: huaxia Bank debit card system adopts multipart migration, and the whole business process is imperceptible.

(2) Ecological Rift: from "isolated island" to "Continental Bridge"

the ecological matrix built by Huawei is amazing:

hardware layer: deeply adapted to Luan Peng chip and shengteng AI server, advanced dtcom develops data asset pricing model based on shengteng AI cluster storage layer: jointly released "distributed database innovative storage solution" with aikesheng ", three engines redefine the storage and computing separation architecture application layer: directly analyze Hadoop data through SQL On Anywhere technology to avoid data migration in Weihai Commercial Bank

(3) O & M nightmare: From human flesh O & M to AI autonomy"

the complexity of distributed databases once frightened DBA, but Huawei's intelligent operation and maintenance system was simplified:

unified O & M platform: Huawei cloud Stack manages multiple clusters, and monitors, upgrades, and patches all-in-one AI Fault Prediction: uses the historical log training model to predict the automatic indexing recommend of hard disk faults 30 minutes in advance: the query performance of Weihai Commercial Bank has been improved 7 times, and the index design time has been reduced from weekly to minute.

All of these confirm the motto of Huawei database developers: to develop database kernel is like dancing on the tip of a knife-if you make a mistake, you will lose everything. Huawei's dance steps are perfect.

IV. Future battle: cloud-native and AI-driven second revolution

Memory separation 1.0 decouples the hardware, and the 2.0 era will reconstruct software genes driven by cloud native and AI.

(1) cloud native: from "owning resources" to "consuming computing power"

GaussDB is evolving into "Tesla in the database industry":

Serverless architecture: huawei cloud Stack supports hybrid cloud deployment. Government customers can be privatized and public cloud can be scaled out flexibly.

(2) AI native: from "human drive engine" to "self drive engine"

when AI is integrated into the database blood, magical changes are taking place:

intelligent Optimization: the index based on plan prediction is automatically generated, and the complex query performance is improved by 23 times. Data autonomy: ICBC pilot AI automatic ownership determination, data asset pricing accuracy rate reaches 98% cross-border integration: aikesheng TensorDB vector database is integrated with GaussDB to realize graph calculation and analysis of credit risk.

When the 67000 transactions per second of Postal Savings Bank are across GaussDB's storage and calculation separation architecture, when the 130 systems of ICBC run smoothly on domestic databases, what we see is not only technology replacement-but the steel root system of China's basic software in the financial lifeline.

The practice of separation of storage and calculation of Huawei GaussDB reveals an iron law: centralized database protects the "heart" of finance, and distributed architecture stretches the "limbs" of innovation ". The wisdom of this mixed architecture is just like the "yin-yang mutual" of Chinese philosophy "--

stable: The core transaction system of the bank still needs centralized transaction consistency. The internet channels, real-time risk control, and historical data query are handed over to the distributed storage and calculation separation architecture.

The signals coming in the future can be clearly identified: Cloud Native makes databases flow like water, AI-driven makes operations and maintenance as invisible as air, and data elements make sleeping bytes become real gold and silver. However, Huawei GaussDB is taking the separation of deposit and calculation as the fulcrum to leverage the starry sea of financial technology.