Brother company intends to purchase a new server to test the test group to test, let me give me some opinions on hardware procurement, because I have considered some problems in hardware devices, I mainly consider the future extension characteristics, but procurement Considering the budgetary problem, the procurement personnel advocates enough to use it. This is a balanced problem. It is enough to reserve a certain extension characteristic.
Enterprises should be dominated by the main business, expand or improve their main business competitiveness, or improve or improve internal operation efficiency, and then achieve an equivalent purpose, and when companies' dependencies are constantly increasing, The health of the system and the network can not be ignored, because the information system planning has led to the situation of advanced investment or insufficient investment, no matter which situation will cause investment waste, no expected results. Establish a good prior design and planning, which is more conducive to the development of the company's main business.
One of the articles of the network administrator world, some views have always been good, posted and collected, whether the system is still a network, the pre-design and planning, is actually very important, and it is necessary to strengthen the ability of this aspect.
Enterprises need a computer system with reliable, easy operation, easy to maintain, compliant with the characteristics of this industry and moderate price, to change internal information construction. This requires an enterprise network upgrade scheme that is suitable for business needs. A suitable upgrade scheme is not measured with the high and low cost. It is the highest price performance, and the four aspects of host system, network system, database system, and microcomputer system are detailed.
Host system upgrade
Host system upgrade mainly considers the following: * Processing Ability * Storage Ability * Extension Ability * Internet Ability, etc.
Relevant requirements for the upgrade of the host system are: * Take advantage of existing resources, while meeting the current business needs, it is also necessary to consider the needs of business growth; * Adopted advanced distributed processing, centralized management mode; * From the system business Management planning, data interface, data standard, structure, and functional security network is uniform; * Select the hardware and software technology of international and domestic standards to build support platforms, adopt specifications of interfaces and protocols, constitute compatible, easy transplantation Billing account system support platform; * The system should have strain capabilities, fault-tolerant and perfect security mechanisms.
Since the host system undertakes the main business, once the host system is stopped, it will face a series of serious events such as the trust crisis, so this is a typical key business (Mission critical) application system. In order to ensure the uninterruptible operation of the system, the following aspects must be guaranteed:
* High reliability: Require server high reliability, use the main backup two-set system, when the primary server fails, the backup function will automatically take it for its work and will not cause the application system to run.
* Storage requirements: The effective storage of the host should be based on system data capacity and take into account all data image requirements. At the same time, it is equipped with a tape library or an CDB to effectively store historical data.
Network system upgrade
Any one of the main and access layers in the enterprise network cannot meet the new application needs, and the network may need to be upgraded. When the upgrade should be analyzed according to the needs of the application, it is targeted, otherwise it may cause the company's advance investment and blind investment, the application effect is not obvious. For example, a company's network trunk adopts a 100M bandwidth fast Ethernet, an access layer device is a 10m bandwidth hub. With the increase in the network workstation and business, the network bandwidth of sharing 10M is clearly a bottleneck of the entire network application. At this time, the access layer device is replaced with an adaptive desktop Ethernet switch, and is replaced with a network workstation to 100M. Network adapter card, you can solve problems well. However, if it blindly follows the trend of Gigabit Ethernet, upgrade the network back to Gigabit Ethernet, and the access layer device does not perform any replacement, so although a lot of funds have been put into money, there is no effect. After identifying the purpose of the upgrade, after finding the crux of the network, you can "the problem of the disease" in the current network. Network upgrade is like a doctor, for a network crux, there may be several "healing" programs, so how to choose this applicable plan is especially important, which is not only related to the investment required by the network upgrade, but also affects future networks Reliability and scalability. Although, a network upgrade does not guarantee that the network has good performance in a long time, but we should ensure that the network will be upgraded again in a short time. To do this, you must first guarantee that the network upgrade is consistent with the structure of the entire network. On a highly standardized basis; secondly, the upgrade cannot only be positioned to meet the current application, there must be future development There must be a certain room, which requires the upgraded network to have certain advanced nature, but also has good scalability, enough to cope with future applications. Finally, we must weigh the proportion between the investment and network performance of the upgrade funds, which can neither deal with things in order to save investment, and cannot invest a lot of money to get advanced performance, try to achieve the most suitable performance with reasonable investment. .
Database system upgrade
The database system operates a support environment as an application system, which is responsible for many important features such as data storage, calculation, and management. The selection and configuration of the database system is also critical to the entire system.
According to the requirements of the system upgrade, we will use mainstream technology in the design of the database system. Currently, in the field of large database systems, and the most widely used technologies are relational database technologies. It is easy to understand and express, easy to develop and maintain, very popular and favored by users. Especially with the recent increasing popularity of object database technology, database products based on relational concepts occupy most of the market share in the database.
The design performance of the database system must meet the following requirements: 1 Guarantee the complete and correct use of data 2 easy to develop and maintain, easy to network 3 can perform large scale data operation and dump processing 4 to avoid "dead lock", "" "" "" "" Data Overflow "is harmful to the system. 5 allows you to set up levels to prevent illegal entry, preventing Yield operation 6 has a good data backup and recovery means 7 has a perfect thing to handle data Integrity 8 Provides C Development Tools
Microcomputer system upgrade
The upgrade of the microcomputer system is so fast, so there is a clear idea that there are several most common ways to provide you with reference.
* Highlight key type This is a relatively common upgrade recommendation. Which subsystem performance in the system is not good, or the subsystem has a high requirement, it is recommended to upgrade the subsystem. For example: Playing 3D is not fast enough, simply buy a 3D accelerator card upgrade of performance. Susually the hard drive is not fast enough, simply buy an IDE's RAID card, plus a hard disk to make a RAID0 array (usually used in a professional workstation to adapt to a disk technology). In this way, it seems to be a headache for the doctor, and the pedicure is physically. This kind of upgrade is the strongest, fast, but not the most affordable method, because there is still an important factor in the system bottleneck, which is likely to suppress the performance improvement of the upgrade subsystem. * The key link is exactly the above highlighting. It is usually a supplement to the previous highlight key. This idea is that after a subsystem is upgraded, other subsystems related to this must be upgraded to match their performance. For example: After upgrading the complete card (display subsystem), the speed of the CPU (operator subsystem) must keep up to cooperate with better geometric processing capabilities. There is also a memory (storage subsystem) capacity must be large enough to deal with burst data stream requirements. Of course, with so high-end graphics card naturally to upgrade your own display (display subsystem), 17 inches is the most basic requirement, otherwise it will not reflect the performance advantage of high-end graphics at high resolution. As soon as this idea is an upgrade, you will find: It is better to buy a new computer directly. However, the tape upgrade idea brings us a conceptual concept in the upgrade process: upgrade To balance each subsystem, whether it is in performance or price.
* Supplementary expansion is a more upgrade scheme that requires more funds, and the upgraded configuration has no help for overall performance, mainly to improve usage comfort and function expansion. Such as: upgrade mouse, keyboard, power and chassis, etc., there is also a recommended additional purchase such as hard disk drawers, active heat dissipation devices, USBHUB, tablet, etc. This upgrade idea is suitable for users who have already been sufficient for their computer performance, or have a very special requirement, such as overclocking, etc. The most real.
* Additional Function This is a domain that expands computer applications by purchasing new accessories (generally peripherals). The most common example is to buy printers to implement paper output function, purchase scan implementation image input, etc. Now a more common fittings include printers, scanners, CD-RW drivers, cameras, and more. Based on reality, far-sighted. Technical and equipment selection must not only consider meeting current needs, but also consider future business development and application changes, but also maintain and upgrade. Otherwise, the upgrade system may soon adapt to new requirements, constantly upgrading, transforming, and managing such systems are really a headache.
