Anhui Mobile: Disaster tolerance construction under cloud storage

Discussions about cloud computing are on the rise, with more and more operators representing businesses starting to research and deploy cloud computing. However, there are a large number of heterogeneous environments in the cloud storage environment, while the traditional disaster-tolerant technology is based on homogeneous storage and cannot realize disaster-tolerant protection in heterogeneous environment. China Mobile Anhui Company (hereinafter referred to as Anhui Mobile) has explored the heterogeneous storage disaster under the cloud storage environment. The independence and openness of building an independent and open disaster tolerance system is of vital importance to the flexibility of the current and future storage platforms of Anhui Mobile. A good disaster-tolerant system can not only satisfy the enterprise's disaster-tolerant needs, but also provide more flexibility for future data platform selection. The independence and openness of disaster tolerance system are shown in the following aspects: It can support user's existing server platform and future mainstream server platform, can support user's existing storage platform and future mainstream storage platform. For Anhui Mobile, the core data of each business system involves a variety of main storage platforms, which requires disaster tolerant scheme to fully support the user's existing and possible future storage platforms. Symantec's disaster-tolerant solutions provide full support to mainstream servers and storage platforms, especially storage platforms, and Symantec's disaster-tolerant solutions can help users realize the independence of storage platforms, which provides a greater choice for future deployments of new systems. The current situation of user system environment Anhui Mobile from the Boss 3.0 online start, on the use of cloud storage technology to the original storage system to transform, through virtualization technology, cloud computing technology to achieve a unified management of heterogeneous environment, so that the application gradually rid of the hardware infrastructure dependence. Based on the original Sun host, EMC storage, Anhui Mobile gradually introduced other brands of host and storage devices (including HP, IBM, Fujitsu hosts, HP, Sun, HDS and other brands of storage products), thereby effectively reducing the hardware procurement costs. The storage virtualization technology used in Anhui Mobile is a virtualized storage space that can span multiple heterogeneous disk arrays through Symantec Storage Foundation software deployed on the host. This kind of virtualization function is usually realized by the logical volume management software under the host operating system, its biggest advantage is stable, open, and can realize on-line management. The core of the Storage Foundation contains a volume manager (VxVM) and the file system (VxFS) on it. VXVM enhances the management of disk drives and LUNs. Independent multipath Software (DMP) can shield the differences between different storage devices to ensure that data can be moved online between heterogeneous storage. VXVM unifies the organization format of volumes under different host environments to ensure that data can be flexibly migrated between different host systems. Long-range cross-disk array mirroring Anhui Mobile original disaster tolerance system using traditional hardware replication technology, the hardware platform has a strong dependence on the production site and capacityDisaster sites must use the same brand of storage equipment. After using the storage virtualization scheme, Anhui Mobile disaster tolerance system has broken through the limitation of hardware. With the remote connectivity of storage foundation software and SAN Network, Anhui Mobile can improve the reliability of data system by achieving a long distance cross disk array mirroring between production center and Disaster Tolerance Center. When a disk system in a production center fails or a disaster occurs, the operating system automatically isolates the disk from the production center and then accesses the data in the disaster-tolerant center because the disk in the disaster-tolerant center is mirrored by the disk system in the production center. The business system can directly access the data in the Disaster Preparedness Center disk system through the Metropolitan San network without affecting the business system of the production center. That is, the disaster on the Production center disk system is transparent to the business system, and applications and databases are not stopped because of a failure of the production center disk system. More importantly, applications and databases are not aborted by disaster, thereby avoiding the possibility of data corruption. 123 Next Page