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network backup system based on the backup server, client, and storage device. The three-party architecture prevents the backup server from being involved in data backup and recovery data transmission, balances the system load and increases the system concurrency. It also describes the overall architecture of the network backup system, the backup server, backup proxy and Storage Server Subsystem functions, and communication interfaces, the network bac
system that supports both local disaster recovery and Network Disaster Recovery. You can set it according to the policy. For example, a physical server can be used to operate an external system and set an incremental replication period from minute to week. Each time a physical server (an external server) has any da
set of support system. System-level disaster-tolerant system can provide uninterrupted application services, allowing users to use the service request can continue to operate transparently, and do not feel the occurrence of disaster, to ensure the integrity of the system services, reliable and safe. Data-level
for the operation of part-time disaster preparedness. It is difficult to find an office environment that meets the needs of business recovery. The disaster preparedness Center needs redundant communication line support, that is to support at least two communication operators. The solution provided by GDS Universal data Taking into account these factors, a insu
response to media storage and access services. Disaster recovery level: The third level of media storage and the second level of the same, the computer room environment needs to meet the national standards, in disaster drills and disaster
. to, within six hours) will be lost, resulting in loss. At the same time, it is obviously not suitable to simply copy structured data such as databases, because it not only has data files, but also log files, and sometimes may miss copies, at this time, the logical relationship of the data may not be copied, resulting in unavailability of data recovery. In addition, in the big data era, copying a large volume of data also requires a lot of resources
SUPERASYNC mode, the state of the standby database will be the remotecatchupshown in Figure 3.Figure 3. The status of the standby database is Remote catchupWhen the standby database is unavailable, the status of the primary database will be disconnected, as shown in 4.Figure 4. The state of the primary database is disconnected when the standby database is unavailableWhen the standby database disconnects from the primary database, the state of the standby database is remotecatchuppending, 5.Figu
From local backup to geo-replication to cloud-based disaster recovery, with the rapid development of cloud computing technology, and cloud services, the model is gradually accepted by the majority of enterprise users, data backup to the cloud is a viable data protection solution. Symantec, December 16, launched a new disaster
. Although the original user data is not lost, the application will be interrupted and the user's business will be forced to stop. This solution is cost-effective and easy to build.Application LevelFor enterprises with a large number of business applications and the system needs to run continuously for 7 × 24 hours, it is clear that high-level application disaster recovery systems are needed to meet their n
good and bad, and the more stable the VPN, the faster data synchronization between two locations, the higher the price, and the deployment of the same set of hardware equipment in the remote data center. Therefore, the Network stability, investment and maintenance prices have become the biggest obstacle to traditional remote disaster recovery.Cloud disaster recovery
system and asynchronous system. Homogeneous system is divided into several groups of storage nodes, each group of nodes to store the same data, one master node, the other is a standby node; Heterogeneous systems are dividing data into many shards, multiple copies of each shard are distributed across different storage nodes, and the storage nodes are heterogeneous, that is, the collection of data shards stored by each node is not the same. In homogeneous systems, only the primary node provides w
the last year successfully received tens of millions of Yuan Angel investment, the current new round of financing is ongoing.Now, more and more enterprises are aware that the self-built data backup center is not only a large upfront investment, but also the maintenance of operations need to invest a larger workforce. As a result, data cloud backup storage has become the most used area in the cloud computing industry today. Larger disaster backup devi
AWS-based Remote Disaster Recovery System Architecture Disaster recovery is a technical precaution and measure that is taken back from any event that has a negative impact on the IT system .. A typical approach is to build repetitive infrastructure to ensure availability of backup capabilities in the event of a
This article mainly discusses perforce's * Perforce centralized authorization * Perforce's support for Distributed teams * Server Load balancer and scalability of perforce * Perforce high availability and disaster recovery One perforce centralized authorization Currently, in many large companies, different departments have different p4servers, which leads to the simultaneous existence of m
system and asynchronous system. Homogeneous system is divided into several groups of storage nodes, each group of nodes to store the same data, one master node, the other is a standby node; Heterogeneous systems are dividing data into many shards, multiple copies of each shard are distributed across different storage nodes, and the storage nodes are heterogeneous, that is, the collection of data shards stored by each node is not the same. In homogeneous systems, only the primary node provides w
The major server hardware vendors (IBM,HP, etc.) provide good data protection policies (hardware or software). A well known RAID disk array (redundant array of independent disks) is a good way to protect data. In the case of SQL Server , a detailed data backup plan can be developed through a maintenance plan. Data backup strategy (full backup, differential backup and transaction log backup) Data backups are services for data
In the Hyper-V Environment, Microsoft provides three solutions for disaster recovery. Based on the traditional WindowsServerBackup, it provides SystemCenter-DataProtectionManager for data centers and WindowsAzureOnlineBackup based on public cloud services. I. WindowsServerBackup Windows Server backup is composed of Microsoft Management Console (MMC) management un
database applications and O M, in addition to database status and performance monitoring, database backup has never been well managed by tools, DMB database monitoring and disaster recovery systems were born to solve this conflict. In the DMB system, there are a total of 7 backup modes in the backup configuration. Next we will introduce them separately. Under what circumstances should we select the backu
Active DirectoryThe importance of Active Directory disaster recovery is self-evident for system administrators. Active Directory is one of the most critical services in Windows. To avoid downtime and productivity loss, developing an effective disaster recovery plan for issue
Through this article, you will learn about DB2Hadr functions and basic operating principles, you can quickly configure an hadr environment through an instance and perform some simple functional tests. Next we will discuss some technical points of hadr.Discuss in detail and give some suggestions. If you are considering the HA issue, I sincerely hope this article will help you. DB2 hadr Overview High Availability disaster
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