High end storage is a kind of storage system, which mainly carries the data access of important business. Important means that single business or multiple applications become important after integration.In addition, high-end storage should also have the characteristics of high reliability, high performance and high security.[1]
As a vital part of enterprise data center, high-end storage is widely used in core business systems of finance, operators, medical, manufacturing and other industries.It ensures the smooth progress of many scenarios in daily life, such as mobile payment, online banking, bill billing, outpatient registration, inpatient management, e-commerce, OA office, etc.[1]
Component redundancy design, uninterrupted single point of failure service, limited impact on system capability
1. Global load balancing. A single LUN can play more than 80% of the whole system's capacity.
2. When a single node fails, the performance loss is less than 25%, which is different from the impact of 50% of midrange storage.
3. It can tolerate the failure of two or more controllers without service interruption, and the service can be switched quickly within 5 seconds after failure.
4. The software supports component based upgrade. The upgrade time is less than 60 minutes, and there is no need to restart the controller. The host link is not aware.
1. The controller and the hard disk subrack are separated to release greater capability. The controller has horizontal expansion capability, supporting at least 8-control scalability, and achieving linear performance improvement;The engine has the vertical expansion capability to achieve the PB level/control expansion capability under the performance requirements.
2. The OLTP model is generally used for testing. The recommended configuration is 7:3 read/write ratio, 100% random miss, and 8KB data blocks;SPC is the most credible third-party certification, which mainly proves the comprehensive IO processing capacity of the storage system and has some reference for actual deployment. The certification is generally above 5 million yuan;The full hit performance is of little reference value to the actual business.
3. In the era of full flash memory, stable performance mainly means that the delay of most IO is within a certain range, for example, 90% of the IO delay is within 1ms, and the IO volatility is within 5%.
4. Large memory, supporting 512GB/controller or above, partially solving the controller performance bottleneck problem in the flash memory era.
5. More high-speed IO interface modules are provided to support more than 20 IO ports/controller, meeting the challenges of high performance and large bandwidth.[1]
High security
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The system has confidentiality protection capability and provides data integrity and availability assurance
1. Storage business security provides access control, authentication and authentication capabilities of resources, supports data encryption and destruction, and supports end-to-end DIF data integrity verification.
2. The storage device is secure, and the storage system adopts a special operating system, and the operating system is configured securely;Support safe startup and software integrity protection to ensure system safety;Regular system security patch upgrade.
3. The storage network is secure. The data plane, control plane and management plane are isolated from each other and provide redundant paths. Secure transmission protocols are used.
4. Storage management security provides role-based access control management, supports default and user-defined roles of users based on system management, and provides user security policy settings, authentication, log and alarm management.
5. The manufacturer can provide a letter of commitment on the availability of storage equipment to ensure 100% availability of data.[1]
