failover是什么意思   failover怎么读

failover单词基本解析：

failover变化用词：

failover英英释义：

failover中文词源：

failover用法和例句：

failover

- :Shared disk failover avoids synchronization overhead by having only one copy of the database.

+ :共享磁盘failover通过仅有一个数据库拷贝避免了同步的瓶颈。

The AutoDatabaseMountDial parameter specifies the automatic database mount behavior for a cluster continuous replication (CCR) solution after a clustered mailbox server failover.

AutoDatabaseMountDial参数为群集连续复制(CCR)解决方案指定在群集邮箱服务器故障转移之后,数据库的自动装入行为。

FIX: Performance monitor counters are lost on the cluster during failover in Message Queuing

FIX:在消息队列中进行故障转移期间,群集上的性能监视器计数器丢失

Notification Services supports scale-up, scale-out, and failover clustering hardware configurations.

Notification Services支持向上扩展、向外扩展以及故障转移群集硬件配置。

RCS Quick failover

RCS 快速失败切换

SQL Server 2005 Integration Services does not provide special installation options for a failover cluster.

SQL Server 2005 Integration Services不为故障转移群集提供特殊安装选项。

you can assign additional disks for 'failover,' which sets up spare disks for the RAID array.When one disk fails, it is marked as bad.

The data is almost immediately reconstructed on the first spare disk, 本站所提供的摄影照片，插画，设计作品，如需使用，请与原作者联系。

Windows Server 2008 failover clustering introduces new networking capabilities that are a major shift away from the way things have been done in legacy clusters.

Windows Server 2008故障转移群集引入了新的网络连接功能,与旧群集中的执行方法相比,这些功能有了很大转变。

Is the mirror server, and the failover clustered instance on,

上的虚拟服务器是镜像服务器

The following fault conditions can cause an RCS to quick failover:

下列的故障情况会引起 RCS 的快速失败切换:

The following figure shows the configuration of a high-safety mode session that supports automatic failover.

下图显示了使用高可用性模式会话的配置。

The following illustration shows an automatic failover between clusters in a mirroring session running in high-safety mode with a witness (which supports automatic failover).

下图显示了在具有见证服务器(支持自动故障转移)的高安全性模式下运行的镜像会话中,群集之间的自动故障转移。

The following figure shows how log shipping and database mirroring work together when mirroring is running in high-safety mode with automatic failover.

下图显示了镜像在高可用性模式下运行时日志传送和数据库镜像如何一起工作。

The following figure illustrates how error detection and failover time contribute to the overall time required for an automatic failover to complete on

下图阐释了错误检测和故障转移时间如何影响在

Unlike the Move-ClusteredMailboxServer cmdlet or an automatic failover, after issuing a Stop-ClusteredMailboxServer command, a restart of the operating system will not bring Exchange back online.

与Move-ClusteredMailboxServer cmdlet或自动故障转移不同,发出Stop-ClusteredMailboxServer命令之后,重新启动操作系统不会使Exchange重新联机。

Unlike the Move-ClusteredMailboxServer cmdlet or an automatic failover, after issuing a Stop-ClusteredMailboxServer command, a restart of the operating system will not result in bringing Exchange back online.

与Move-ClusteredMailboxServer cmdlet或自动故障转移不同,在发出Stop-ClusteredMailboxServer命令之后,重新启动操作系统不会使Exchange重新联机。

Failover clusters provide high-availability support for an entire Microsoft SQL Server instance, in contrast to database mirroring, which provides high-availability support for a single database.

与为单个数据库提供高可用性支持的数据库镜像相反,故障转移群集可为整个Microsoft SQL Server实例提供高可用性支持。

For the failover of the application to work, this data must be kept on the shared disk.

为了让应用程序的失效切换能够生效,此数据必须保存在共享磁盘上。

Reconfigure the FDDI to give better failover performance, this would involve minimising the changes of a switch port MAC move on dual-home failover.

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The primary and secondary servers can be on the same computer; however, in this case, SQL Server failover clustering may provide better results.

主服务器和辅助服务器可以是同一台计算机,但对于这种情况,SQL Server故障转移群集可带来更好的结果。

Beginning with Windows Server 2008 failover clustering, individual cluster nodes can now be located on separate, routed networks.

从Windows Server 2008故障转移群集开始,现在可以将单个群集放置在单独的已路由网络上。

That way, if a failover is required during a peak e-mail period, you will know if the single node can run both EVSs.

以此方式,如果在电子邮件使用高峰期期间需要故障转移,您就可以知道单一节点是否能运行两个EVS。

The method for estimating roll forward time during failover depends on the number of threads the mirror server uses during the redo phase.

估计故障转移过程中的前滚时间所用的方法取决于重做阶段中镜像服务器使用的线程数。

Estimating the Failover Redo Rate

估计故障转移重做速度

It does, however, ensure that majority in the failover cluster is not affected by a network failure between the primary and secondary datacenter.

但它可以确保大多数故障转移群集不会受到主数据中心和辅助数据中心之间网络故障的影响。

However, note that failover from the new principal back to the (clustered) new mirror is not automatic.

但是,请注意,从新主体回到(群集的)新镜像的故障转移不是自动进行的。

However, by implementing fault tolerant clusters with automatic failover capabilities, four nines (99.99 percent) is achievable.

但是,通过实现带自动故障转移功能的容错群集,可以达到四个九(99.99%)。

For example, Setup log files will be written to the system drive, and can require 80 MB for a stand-alone installation, and more for a failover cluster installation.

例如,安装程序日志文件将写入系统驱动器,并且对于独立安装需要80 MB,对于故障转移群集安装需要更多空间。

Shared disk failover avoids synchronization overhead by having only one copy of the database.

共享磁盘failover通过仅有一个数据库拷贝避免了同步的瓶颈。

Keywords Software Fault-tolerance;Cluster System;Rollback Recovery;Failover;Checkpoint;

关键词软件容错;集群系统;回卷恢复;故障转移;检查点;

The base drive, the one with the drive letter, cannot be shared among failover cluster instances.

具有驱动器号的基准驱动器不能在虚拟服务器之间共享。

Redundant memory provides the system with a failover memory bank when a memory bank fails.

冗余内存在某个内存块故障时为系统提供一个故障转移的内存块。

About fault-tolerance,failover, Storage Area Network(SAN) technologies were analyzed.Recovery-Oriented Computing (ROC) technology was presented for failure-recovery.

分析了与错误容忍相关的失效转移及存储区域网技术,以及与故障恢复相关的面向恢复的计算(ROC)技术.

The remainder of this section outlines various failover, replication, and load balancing solutions.

剩下的篇幅罗列了各种failover, 复制和负载均衡方案。

Before a failover can occur, a secondary database must be brought fully up-to-date by manually applying any unrestored log backups.

发生故障转移之前,必须通过手动应用全部未还原的日志备份来完全更新辅助数据库。

In the event of a disaster, in high-safety mode with automatic failover, failover quickly brings the standby copy of the database online (with no data loss).

发生灾难时,在具有自动故障转移功能的高安全性模式下,自动故障转移可快速使数据库的备用副本在线(而不会丢失数据)。

Alternatively, if you do not want automatic failover and you prefer to emphasize performance over availability, turn off transaction safety.

另外,如果您不想进行自动故障转移,并且您对性能的追求超过了可用性,则请关闭事务安全。

Database mirroring enables the creation of hot standby servers providing rapid failover support with no loss of data from committed transactions.

可以使用数据库镜像创建热备用服务器,从而在已提交的事务不丢失数据的情况下提供快速故障转移。

Scalability and high availability: many servers offer features such as clustering and failover for high demand situations.

可伸缩性和高可靠性：许多服务器对于高需求状况提供例如集群或故障转移等功能。

Consequently, it's better not to enable automatic failover for your mirrored databases when used in conjunction with a cluster.

因此,当与群集结合使用时,最好不要对您的镜像数据库启用自动故障转移。

When the public network fails, the failover is lossy, even though the log data is available.

在公用网络出现故障时,即使日志数据可用,故障转移也会丢失数据。

You don't have to actually do anything fancy to be able to deploy this on a large redundant cluster with failover, remote management--all that kind of comes along for free.

在具有容错及远程管理功能的冗余群集环境中，无需太多复杂的技巧就能从容部署你的应用， 所有这一切无需额外开销， 唾手可得。

In the event of a failover, if the maximum number of lost logs has not been reached or exceeded, the database will mount.

在发生故障转移时,如果没有达到或没有超过已丢失的日志的最大数目,都将装入数据库。

A trade-off exists between reducing the risk of an incorrect diagnosis of server failure and increasing the time it takes for automated failover and peer recovery to occur.

在增加自动故障切换以及进行对等恢复所需时间和减少不正确的服务器故障诊断风险之间,存在权衡。

Before installing failover clustering, you must ensure that your system meets minimum requirements, and configure the Microsoft Cluster Service (MSCS).

在安装故障转移群集之前,必须确保系统满足最低要求并配置Microsoft群集服务(MSCS)。

You must ensure that each layer can scale as user load increases, and that each layer allows for continuous availability with failover, if necessary.

在必要时,您必须确保每一层可以随着用户负载的增加而按一定的比例增长,并且每一层允许在故障转移时继续可用。

During a quick failover, all stable calls are lost when AP or EIN hardware, Operation System, platform software, or some application software faults occur.

在快速失败切换期间，当 AP 或 EIN 硬件、操作系统、平台软件或某些应用程序软件出现故障时，所有稳定呼叫都会掉线。

In failure test, one client closesone controller of CX700 to test the failover capability, which instantly results in the CX700 breakdown and data loss.

在故障情况测试时，客户关闭了CX700的一个控制器来检测其鼓掌切换能力。CX700立即崩溃并造成数据丢失！

At any point in a database mirroring session, the database owner can disable automatic failover by turning off the witness.

在数据库镜像会话过程中,数据库所有者可以随时通过关闭见证服务器来禁用自动故障转移。

After a resource failure is detected, Failover Manager performs recovery actions that include restarting a resource and its dependent resources, or moving the entire resource group to another node.

在检测到资源失败之后,故障转移管理器将执行恢复操作,这些操作包括重新启动资源及其依赖资源,或将整个资源组转移到另一个节点。

In this mode, the mirror database might lag somewhat behind the principal database, and manual failover is no longer possible.

在此模式下,镜像数据库可能稍微滞后于主体数据库,并且不可能再进行手动故障转移。

The log file generated before the move operation or failover was: %4

在移动操作或故障转移之前生成的日志文件是:%4

Creates triggers at the Subscriber used with all types of updatable subscriptions (Immediate, Queued, and Immediate Updating with Queued Updating as Failover).

在订阅服务器上创建与所有类型的可更新订阅(立即、排队和将排队更新作为故障转移的立即更新)一起使用的触发器。

In that environment they will scale out horizontally, handle failover, and be fault-tolerant.

在这种环境下，它们将是超水平的、可故障恢复的并且是可容错的。

Under high-performance mode and high-safety mode without automatic failover, forcing service is possible if the principal server has failed and the mirror server is available.

在高性能模式和高级别保护模式下,如果主体服务器出现故障而镜像服务器可用,则可以强制服务运行。

Failover policy 设为 Minimum Package Node。FAILOVER_POLICY 设为 MIN_PACKAGE_NODE。

套件会故障转移到启用套件最少的节点。

Failover policy设为Minimum Package Node。FAILOVER_POLICY设为MIN_PACKAGE_NODE。

套件会故障转移到节点清单的下一个节点(预设)。

How to: Recover from Failover Cluster Failure in Scenario 2

如何从方案2中的故障转移群集失败中恢复

How to Evict a Node from a Windows Server 2003 Failover Cluster

如何将节点从群集中删除

If the SQL Server instance becomes unavailable, SQL Server Agent starts the Database Mail external program directly to notify the failover operator that the instance is unavailable.

如果SQL Server实例变为不可用,SQL Server代理将启动数据库邮件外部程序,直接将实例不可用的信息通知故障转移操作员。

If the main database server fails, the standby server is able to mount and start the database as though it was recovering from a database crash.This allows rapid failover with no data loss.

如果主数据库服务器失败，那么standby服务器能够mount这个盘并且重启数据库仿佛是数据库crash之后的恢复。

If using queued failover option, run Queue Reader Agent for subscription initialization.

如果使用排队故障转移选项，请运行队列读取器代理程序以进行订阅初始化。

If an unscheduled failover occurred, you must investigate the cause of the failover by reviewing the Application log.

如果发生了未计划的故障转移,您必须查看应用程序日志了解故障转移的原因。

If your work load overloads the CPU, a failover partner might be unable to ping the other server instances in the mirroring session, resulting in a unnecessary failover.

如果工作负荷超过CPU负荷,则故障转移伙伴可能无法ping镜像会话中的其他服务器实例,从而导致不必要的故障转移。

If you configure a virtual server name of AppServer01 for connections to the failover cluster, use AppServer01 as the system name value in the application definition.

如果您为到故障转移群集的连接配置了虚拟服务器名称AppServer01,则使用AppServer01作为应用程序定义中的系统名称值。

If you are familiar with deploying failover clusters or Exchange clusters from previous versions, you will find deployment of a cluster for an SCC solution to be quite different.

如果您熟悉早期版本中对故障转移群集或Exchange群集的部署,则会发现SCC解决方案的群集部署非常特别。

If you have more than eight RCSs, the remaining RCSs will function under the Facility Failover and take 4.5 minutes to be promoted to active.

如果有多于 8 个的 RCS，则其余的 RCS 会在设备失败切换下进行操作并要花费 4.5 分钟才能提升到活动状态。

If the cause of the heartbeat response failure is temporary, it is best to avoid the potential disruption a failover might cause.

如果检测信号响应失败的原因是临时的,则最好是避免故障转移可能导致的潜在中断。

If the log volume of the production storage group is not available (and could be available) at the time of the failover, more data may be lost than necessary.

如果生产存储组的日志卷在故障转移时不可用(以后可能会可用),可能会丢失更多的数据。

If your disk controller is not external to your clustered computer, you must turn off write caching within the controller to prevent data loss during a failover.

如果磁盘控制器不在群集计算机之外,则必须关闭控制器内的写缓存以防止在故障转移期间发生数据丢失。

If one of the nodes in a cluster fails (known as a failover event), the Cluster service takes control of the cluster.

如果群集中的一个节点发生故障(称为故障转移事件),则群集服务将取得群集的控制权。

If the domain contains clustered server instances, the load balancing and failover capabilities supported by the domain configuration remain available, even if the Administration Server fails.

如果该域包含聚集服务器实例，那么由域配置支持的负载平衡和失败性能保持可用，即便管理服务其失败。

If a secondary node doesn't receive that heartbeat, it may trigger the start of a failover.

如果辅助节点没有收到该信号,则可能会触发故障转移。

If the node running the current principal server fails, automatic failover of the database begins within a few seconds, while the cluster is still failing over to another node.

如果运行当前主体服务器的节点失败,将在几秒钟内开始进行数据库自动故障转移,群集仍然故障转移到另一个节点。

If a Hub Transport server (formerly known as a bridgehead server) is unavailable because of a failure or regularly scheduled maintenance, failover to the other Hub Transport servers is automatic.

如果集线器传输服务器(以前称为桥头服务器)由于失败或定期日程维护而不可用,则会自动故障转移到其他集线器传输服务器。

They provide resource-based scheduling of service requests and automatic failover when a node fails.

它们提供服务请求的基础资源调度以及当一个节点失败时自动的容错功能。

Before you install a Microsoft SQL Server 2005 failover cluster, you must select the hardware and the operating system on which SQL Server 2005 will run.

安装Microsoft SQL Server 2005故障转移群集之前,必须选择运行SQL Server 2005的硬件和操作系统。

Install this update to resolve an issue where DFS failover does not occur when a system running Windows Vista attempts to connect to a DFS root server that is unavailable.

安装本更新程序可解决以下问题:当运行Windows Vista的系统尝试连接至不可用的DFS根服务器时,不进行DFS故障转移。

For a synchronous operating mode, the failover time can be regulated by limiting the size of the redo queue.

对于同步运行模式,可通过限制重做队列的大小调整故障转移时间。

For failover cluster installations, resources on shared disks cannot be set for any ACL in a local user group.

对于故障转移群集安装,不能为本地用户组中的任何ACL设置共享磁盘上的资源。