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severity of the switch port speed mismatch with the speed of the NIC on Exchange server. In detail, the performance of the customer's mail system has suddenly dropped dramatically, and RPC averaged latency has a value of up to 5 digits, and all users cannot open the mailbox. After troubleshooting issues with Exchange and windows, we learned from our customers that they replaced the switch that was connecte
After a long period of development, many users are familiar with Hongqi Linux. Here I will share my personal understanding and discuss it with you. As Linux enters the computing environment of key industries, users' requirements for systems become increasingly strict. In order to meet this increasing requirement, Hongqi software has completely optimized the server operating
are generally accustomed to using their graphical development management interface, created to manage various objects. In fact, the operation of the graphical interface is ultimately transformed into the corresponding Transact-SQL statement to manipulate the database. Therefore, it is recommended that users, when learning SQL Server databases, try to manipulate the database through the Transact-SQL language described in this book, which facilitates t
. As the system grows, You can migrate users from a partition to a single server. You can also use the partition server as a cluster member to obtain high Database Availability. The security of a partitioned server is the same as that of a single server.
When setting a part
according to the different physical locations and bandwidth;
If the shared files that the Dfs points to are located in different sites and are replicated to each other, the server points the client's shared access request to a site with the lowest cost based on the cost value between the sites;
Click Schedule to configure replication time, as shown in the figure;
According to the specific network bandwidth r
Seachange Video Server System Overview-[1]
Http://www.video.com.cn/tech/server/200804/1209001903779.htmlVideo.com.cn (video network) Source: China Digital TV
To meet the needs of increasing broadcast channels, expanding the broadcast scale, and promoting HD broadcast modes, the Hard Disk Broadcast System of conventiona
other secure servers.
Reporters and a number of users, professional manufacturers on this issue has been discussed. The reasons for improving the performance of the server system are various, and the application is the key. Most organizations upgrade the server system because they want to run a new application
A new technology to enhance server security is "client operating system virtualization"---its rationale is to use a special virtualization engine to run a virtualized guest instance, or to run an operating system client instance on a top-level physical structure and host instance.
In a client-side virtualization operating sys
synchronize data, therefore, the CPU and memory resources of the network server need to be occupied. The performance of the backup storage is lower than that of a single server.
Some image server cluster systems use the memory image technology. The advantage of this technology is that all applications and network operating systems synchronize images on the two
I. PreambleIn recent months has been engaged in a distributed asynchronous communication system, today to organize and blog a bit.This is a nationwide communications platform, the performance, massive data, fault tolerance and scalability have very high requirements, so in the system architecture can not be simple to adopt centralized. A simple summary is:1. Data
In the previous chapters, we analyzed the design and implementation principles of the service-side system, in which we use the server-side framework to implement a chat system that runs in the intranet environment. The chat system consists of two parts: client and server, an
Label:Original: SQL Server performance Tuning (i)--judging system resource bottleneck from waiting stateView the status of all SQL Server tasks at that time (sleeping, runnable, or running) through the DMV2005, 2008 provides the following three view Tudon detailed query:
DMV
Use
Sys.dm_exec_requests
Returns information abo
I. System requirements and equipment selection
At present, with the rapid development of computer high-speed network and multimedia storage technology, the TV broadcast field is in a period of change from tape broadcasting to hard disk broadcasting. Video network Broadcasting system centered on hard disk storage as a new technology has been widely concerned in t
As Microsoft's latest server operating system, Windows Server 2003 not only inherits the ease-of-use and Stability of Windows 2000/XP, but also provides higher hardware support and more powerful security functions, it is undoubtedly a choice for Small and Medium network application servers. This article describes how to develop security policies for enterprise ac
I. PreambleIn recent months has been engaged in a distributed asynchronous communication system, today to organize and blog a bit.This is a nationwide communications platform, the performance, massive data, fault tolerance and scalability have very high requirements, so in the system architecture can not be simple to adopt centralized. A simple summary is:1. Data
1. Introduction to Linux virtual servers
Linux Virtual Server (LVS) is a high-availability Server Load balancer cluster system. The system can provide Load Capacity proportional to the number and performance of server nodes, effectively improving service throughput, reliabil
the basis of 64-bit Debian Linux, but it is very friendly to the requirements of enterprise users. The reason for this is that it provides a dedicated Linux server solution rather than a full-featured release.Turnkey offers more than 100 applications that can be run directly. These include standards such as Apache Web Services, a Linux, MySQL, Php/python/perl (lamp) stack, a WordPress blog platform : Drupa
Opening
On the article, we introduced, the single-machine software architecture, in fact, no matter what software system, are to solve the actual problems, software in order to better solve the actual problems will be generated, then for the single-machine soft
The architecture of the pieces is constantly changing and evolving, and of course the good software architecture plays a decisive role in the life cycle of the software. A good sof
Using the Microsoft. NET Framework to build an application that requires the use of distributed objects. Your requirements include being able to pass objects by value or by reference, whether they reside on the same computer, on different computers residing on the same local area network (LAN), or on different computers residing on a wide area network (WAN). The application does not require you to explicitly control the lifetime of the remote object.B
hot standby system configuration completed. The system is usually provided by the host to provide database services, from the machine in a dormant state. From the machine through the COM1 and internal private network at any time to monitor the heartbeat of the host, when the host heartbeat is not monitored to announce the takeover of all tasks, and alarm.
Iv. concluding remarks
The
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