failover

j2ee| Program In the recent past, Java developers were aware of the tools they were going to use when preparing a new enterprise Java development Project. At the time, everything was simple: Java EE was new, HTML browsers were recognized as user

1, to find out about the "master" the "preparation" of several concepts: Failover Link Failover link is used to communicate each other's working status between devices, and the information passed on Failover link includes: o Current status of the

Error | resolution In the Dataguard environment if we are doing failover, we may encounter ORA-00261 errors, the following is the cause of the error and the solution. If you need to switch because of a network problem, the RFS process on the standby

The impact of messages on SOA In the first part of the message, I wrote about many long-standing best practices from the point-to-point messaging architecture to the service-oriented development requirements update message domain. Here, we will

All of these technologies can be used as a means of maintaining a standby server, and the database can be online as a new primary server when problems arise in your original primary database. However, you have to keep in mind that replacing the

When establishing the standby database, a ORA-15173 error occurred during the recovery of the main library's data file on ASM. Both the primary and the standby are single-instance databases, but all use ASM as a storage method. The restore

Windows Server 2012 Data Center and Standard Edition Question 1. What are the new features of Windows Server 2012? Windows Server 2012 brings our company's accumulated experience of building and operating a public cloud to a private cloud server

Cluster aggregation ESXi The capacity of the host into a large pool and provides an abstraction layer between the resource provider (ESXi host) and the resource consumer (virtual machine), which creates an additional abstraction layer that provides

After you have created a failover cluster earlier, we will configure failover clustering in this article primarily to configure the quorum disks and cluster shared volumes used by the failover cluster. Open "Failover Cluster Manager" in Server1 's

Since SQL Server 2005, Microsoft has provided a variety of high-availability technologies to reduce downtime and increase protection of business data, and as SQL Server 2008,sql Server 2008 R2,SQL Server 2012 continues to publish, SQL There are many

Using the firewall and the memory pool MIB (using the Firewall and Memory pool MIBs) The Cisco firewall and memory Pool MIB allow you to poll for failover and system state. This section includes the following: o ipaddrtable notes (ipaddrtable notes)

The ha of RAC is one of its big selling points, and Oracle often does it to advertise, but in fact, RAC is not really ha, because it is a share-disk architecture, only instance-level ha. The technical basis of the RAC instance-level HA is failover,

If you want to reprint Oracle, please specify the source! (Diao greedy first thanked ...) ） Oracle TAF configuration TAF is the abbreviation for transparent application failover, and the general application Taf is in Ops/rac environment. Since

Recently began to learn the MongoDB database, but in the blog Park can not find a comparative system of tutorials, a lot of information to go to the English site, the efficiency is relatively low. I am not, by the opportunity to self-study

I believe we all know how to configure the HA function in the vsphere environment, know ha failover time for VM system startup time + Application start time + 15 seconds of heartbeat detection time, know ha is not affected by DRS and Vmotion, Know

In the previous data backup and failover-file history, the information about the file history and how to use it are described, because this chapter revolves around the various data security and in case, so let's take a look at the backup and restore

In fact, is not a trap, just do not pay attention to, it is easy to configure errors. This article describes the possible errors caused by load_balance and failover coordination. When the service name is configured with both Load_balance and

asp.net one, session-state functionality HTTP is a stateless protocol, so it does not automatically indicate whether a sequence of requests is from the same client or even whether a single browser instance is still actively viewing a page or site.

SSS (Secure Store Service) can serve as a core service, as many other services require that this service be set up to work. One of its roles is to provide a secure database that stores the credentials associated with the application ID. These IDs

SQL Server 2005, compared to SQL Server 2000来, says that there is a considerable improvement in performance and functionality, even the "revolution" to describe the upgrade. SQL Server 2005 makes SQL Server the top tier of enterprise databases. For