Storage Dual Live insurance business sustainable

　One of the most notable changes in the 2014 was that the two-live data center spanned the conceptual hype and was accepted by many business users. HDS presents a new dual-live mode--gad (Global-active Device), which provides a solid guarantee for business continuity by enabling dual-live storage.

Today, 7x24-hour business continuity and data access is no longer a "patent" for large enterprise customers, but a basic requirement for ordinary business users and individual consumers. In keeping with this, from simple data backup to data disaster recovery, from the master-slave disaster recovery scheme to the "dual Live" data center, it vendors and users take a variety of approaches to ensure business continuity. One of the most notable changes in the 2014 was that the two-live data center spanned the conceptual hype and was accepted by many business users.

　Dual-Live architecture is possible

China Everbright Bank Credit Card Center once deployed the first dual-live pre-system of the domestic banking system. The system has not experienced a business interruption since it went online. Whether it is the customer or the bank leader, the stability and availability of the banking system are increasingly demanding. The double-live front-mounted system can reduce the pressure of load handling, and ensure the stability and reliability of the system. After many arguments on the technical aspects, Everbright Bank believes that it is feasible to construct a dual-live pre-system.

The primary-standby disaster-tolerant approach was once a mainstream model for high availability of the system. Mainstream storage vendors also offer solutions that support this model. In master-Standby mode, the disaster Recovery Center starts and takes over the business only when there is a problem in the production center. Because of the technology and the system is not sure, also did not do a rigorous disaster tolerance drill, in the main-standby mode, even if the production system has problems, many enterprise managers also dare not easily release the system switch commands.

Jiangxi Provincial Geographic Information Bureau of Surveying and Mapping in the launch of a new cloud public service platform, also in the use of what kind of data Center architecture This issue has been weighed: if still according to the main-standby construction ideas, then nearly 50% of the data center resources will be in a cold standby, daily non-provision of access services, which will result in a huge waste of data ; If you follow the idea of building a cloud data center, using a dual-live architecture, you can pool your data center resources, allow business applications and services to drift online, and ensure 7x24 hours of continuous operation. The Geographical Information Bureau of Surveying and Mapping of Jiangxi Province finally adopted the model of the cloud architecture dual live data center.

In the dual live mode, two data centers do not exist in the primary, standby relationship, but on an equal footing, while assuming the responsibility of business operations, if one of the data center fails, the business will immediately automatically switch to another data center. The dual-live architecture enables high reliability and scalability of the system. On the one hand, the dual-live architecture can guarantee two centers to provide access services at the same time, and the utilization of data center resources is maximized relative to the traditional master-standby architecture. On the other hand, the architecture of the dual live data center makes the underlying IT infrastructure completely transparent to the front-end business applications. Users can dispatch IT resources as easily and conveniently as with water and electricity. The dual-live architecture makes it easy and easy for cloud applications to hit the ground.

　The advantage of double life is innate

Traditional master-in-the-way disaster recovery solution, usually RTO indicator will be more than 10 minutes, in case of accidents to manually switch, technicians also bear a lot of script maintenance work, and disaster Recovery Center resource utilization is low. The dual-live architecture is different, the RTO is usually less than 1 minutes, the failure can be automatic switching, the disaster Recovery Center is always available, two data center resources can be fully utilized.

RTO close to 0, improve data center resource utilization, in the event of failure to achieve automatic switching is the pursuit of users, but also is the value of the dual live data center. HDS believes that a dual-live data center is the ideal solution for protecting business continuity. The value of the dual live data center is embodied in two areas: first, to improve the level of IT services, business is always online, RTO and RPO are nearly 0, second, reduce the operational costs and risks of the system.

HDS presents a new dual-live mode--gad (Global-active Device, which is based on storage for dual live). Hitachi GAD Solution consists of two high-end storage HDS Virtual Storage Platform G1000 (VSP G1000), user data can be replicated in real-time in two storage, and provide external data access services, the user host can access any one stored data, If a single storage device fails, the app can access the other storage device without interruption. Hitachi GAD Solutions can solve two challenges for customers: when the production system is in trouble, the business can automatically switch to another storage device without downtime, the distance between the two data centers is within 100 km; in HDS's dual-live solution, both sides of the storage can be used, all the host can also be used, Resources can be fully utilized, and the device can be automatically switched to ensure the continued operation of the business.

HDS Gad can easily implement storage-dual-live and load-balancing to improve storage-system capacity and efficiency; When any node fails, the system can automatically switch, does not affect the business, I/o local read-write can achieve better application performance, simple architecture, fewer points of failure, no need for additional software or tools.

The HDS Gad Dual Live solution also provides a smooth transition to 3DC (three data center) scenarios. In the 3DC scenario, the three data centers have equal status and can work together to provide services for business access in parallel, enabling the full utilization of resources and avoiding the idle state of one or two backup centers, resulting in wasted resources and investments. In the event of a failure or disaster in a data center, other data centers can function properly, and take over the key business or all of the business to achieve the effect of mutual backup, so as to realize the user's "no sense of failure."

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　Svos is the core

The Storage virtualization Operating System (SVOS) used by HDS VSP G1000 provides the core power of a dual live data center that simplifies the design and operation of distributed systems. Svos supports simultaneous read/write copies of the same data in two locations, and its dual-live design enables cross-image storage between two HDS VSP G1000 systems.

These two HDS VSP G1000 systems are capable of simultaneously receiving read/write I/O operations at both ends and are continuously updated. If a site's disk control cabinet fails, the control cabinet of the other site automatically takes over and continues to accept read/write I/O operations. A dual live data center solution ensures that the latest storage volumes are always available and supports production workloads on both systems, maintaining data consistency while enabling data protection.

In the dual live data center, two HDS VSP G1000 are active (active), each of which provides read/write service to the host, so that the real double live and the efficiency of storage is improved. With some of the unique features of HDS VSP G1000, the dual live data center solution ensures business continuity even in the event that a virtualized control cabinet fails, with the latest active storage volumes still available for production applications. HDS Gad can now provide dual live clusters both locally and in the same city, with Multipath software that allows applications to access replicated data from the shortest path for higher performance.

It should be emphasized that in the process of building a double-live data center, the choice of hardware and software equipment is only one aspect, the analysis of requirements, the planning and design of the plan, the implementation, the data migration, the management and optimization of the system are also the links that can not be neglected. When choosing a dual live data center solution provider, it is best to select vendors with both service and implementation capabilities. Hitachi Global Solutions Services offers enterprise-class users the ability to plan, design, install, implement, transition, migrate, integrate, manage, and optimize services in a dual-live data Center for continuous data center operations.

The construction of the double-live system has a certain threshold. First, the user needs to do an assessment of their business requirements, clear on the system availability or stability requirements, such as which business must be protected with a highly available system; Secondly, users should realize that the use of double-live mechanism can save a lot of resources and costs, improve the utilization of equipment, easy to deal with business peaks; Improving system availability is a holistic architecture that includes reliable underlying hardware platforms, dual-live technology architectures, and upper-level software.

Shanghai Communications Financial Services Co., Ltd. (hereinafter referred to as communication Finance) is a financial information technology development-based, mainly engaged in bank card business system outsourcing services of third-party financial services providers. In order to meet the growing business needs, communications finance to establish a centralized, easy to manage and upgrade the unified storage platform, and ultimately achieve the goal of storage "cloud." Using Hitachi's VSP and USP v disaster-tolerant technology, Hur provides a unified disaster recovery between production center cloud storage and disaster recovery centers, and enables two-way replication between two data centers to form a dual-live data Center architecture. Based on Hitachi's global dynamic storage virtualization technology, this dual-live solution not only simplifies and automates IT system management, but also provides high availability to ensure sustainable operation of critical data and applications. The dual-Live architecture lays the foundation for unified storage, unified management, unified replication, unified mobility, and unified disaster recovery.

To drive the application of dual live data center solutions, HDS works in-depth with strategic partners such as Microsoft, SAP, and VMware to ensure that HDS VSP G1000 can be certified in key projects such as the Microsoft Private Cloud Deployment project, SAP Hana Custom Data Center solutions, VMware software-defined data centers, etc.

This article is from the "Guo Tao Storage World" blog, so be sure to keep this source http://gtstorageworld.blog.51cto.com/908359/1601521

Storage Dual Live insurance business sustainable