{"id":7015,"date":"2022-07-31T12:54:11","date_gmt":"2022-07-31T08:24:11","guid":{"rendered":"https:\/\/rahaco.net\/server-2\/"},"modified":"2023-03-13T11:16:14","modified_gmt":"2023-03-13T07:46:14","slug":"server-2","status":"publish","type":"page","link":"https:\/\/rahaco.net\/server-2\/?lang=en","title":{"rendered":"server"},"content":{"rendered":"
server <\/span><\/strong><\/p>\n Servers are a group of computers that are designed for heavy-duty so that several people can serve them at the same time. And physically, they are designed in such a way that we can put them in special compartments (Rack). To provide better conditions for them in terms of safety and appropriate physical conditions (temperature and humidity) and ease of access. This category of computers is also the same as: other workstations are completely different from ordinary computers. And moreover, the following are also the main differences between them and workstations:<\/p>\n<\/div> The server hardware is designed to be redundant. That is, in the case of hardware that mostly has a higher failure rate than other hardwares such as: power and external memory (HDD, SSD), more than one number are embedded in them in such a way that they are in the circuit simultaneously. And with the failure of one of them, in addition to not losing information, the server does not even shut down and the defective part can be replaced while the server is on and working (Hot Plug).<\/p>\n<\/div><\/div><\/div> Keeping the physical security of information in servers is very important, so that a separate piece of hardware called Raid Controller is embedded in them. which can apply and manage various arrangements to create redundancy and more speed and productivity in the case of peripheral memories.<\/p>\n (For example: by choosing 4 disks and establishing a standard number (10 Raid) arrangement between them, in addition to achieving 2 times the speed of information exchange, this arrangement can withstand the failure of 1 or 2 memories, so that information is not lost or shut down.) Of course, note that all workstations and some regular computers also have this feature. with the difference that due to the lack of special hardware, this is done mainly in the form of software in them. Or that piece of hardware doesn’t have the same capabilities as servers. Indeed, this piece of hardware with PCI format can be installed on the motherboard and use their capabilities in workstations but servers have this piece of hardware by default.<\/p>\n<\/div><\/div><\/div> The appearance of the servers is designed in such a way that all of them can be installed in large numbers in standard racks. And the air conditioning of them is designed according to this compartment in such a way that it absorbs cool air through powerful and numerous fans from the front line. And this air flow on its way to the end of the server cools all the required parts in an optimal way by the special fins installed inside and exits from the end of the server.<\/p>\n<\/div><\/div><\/div> Smart middleware is embedded in the servers, through which BIOS access can be obtained in the computers when the server is on and working through the network. With this access, all necessary information related to the health status of all hardware parts can be viewed remotely. And some hardware settings are done without the need to shut down or restart the server. And also, the image of the server is recognized in this way, so that there is no need to connect a monitor directly to the server and we can perceive this image through the browser of a computer that is on the network.<\/p>\n<\/div><\/div><\/div> Expandability is also a characteristic that has been given special attention in servers so that various hardware parts have been produced for every type of needs, which can be installed on the server. For example, in a situation where we need a large number of hard drives, more than 20 hard drives can be installed on a regular server. Or when we need a large number of network ports, many Network interface card can be installed on a server.<\/p>\n<\/div><\/div><\/div> Long-term support on servers is very important. That is, the server manufacturing companies offer software updates for a longer period of time due to the fact that these devices are expensive and designed to last longer than other types of computers.<\/p>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div> Servers are produced in one of the types of rackmount or tower and the main question in most cases is, which types of servers is more suitable for you? the air circulation in tower servers is the same as desktop computers, while the air circulation of rackmount servers is different as mentioned above. There are fewer expansion riser cards available in tower servers and the number of these PCIs is more in rackmount servers.<\/p>\n<\/div><\/li> Usually, in terms of hardware, there are fewer modules for installing RAM in tower servers compared to the same rackmount models.<\/p>\n<\/div><\/li> Rackmount servers usually have more ports for hardware development than Tower.<\/p>\n<\/div><\/li><\/ul><\/div><\/div><\/div><\/div> In short, only HP brand servers<\/strong> are suitable in Iran Why? We will explain further<\/p>\n The server standards are chosen much more strictly. And they will be updated downstream. For example: At the time of writing this article DDR5 standard is used in PCs. But for servers, not only has it not entered the market, but also the timing of its entry is obscure. in a nutshell, a server generation becomes outdated after personal computers generation. And usually, each server\u2019s generation is in the market for about 5 years, but this number is less than 3 years in regular computers.<\/p>\n<\/div><\/li> Server application are different from computers. And servers are prepared with specific goals, and maybe for that purpose for which you intend to buy a server, the server generation does not have a noticeable application and they are not affordable for you.<\/p>\n<\/div><\/li> Usually, there are only new up-to-date servers in the market, so if you only intend to buy a new server and you cannot buy a stock server, your choice is limited to the latest generation. It is rare to find a new server from a lower generation in the market and it is high priced, which is not economical compared to buying the last generation server.)<\/p>\n<\/div><\/li><\/ul> For example, if your goal in preparing a server is to use it as an accounting server, the 8th, 9th, and 10th generations have no significant difference in performance for this type of application. And you can invest in number of servers instead of generation. That is, with a certain budget, instead of buying a 10th generation server, you can buy two 9th generation servers. And put these two in the circuit at the same time to support each other. Server processors have more cores and memory (Cache) compared to personal computer processors and we know its function.<\/p>\n<\/div><\/div><\/div> The main memory in servers has a special hardware part (chip) for error correction called ECC. (Error Correction Code) which is the reason for the presence of this important and expensive piece to prevent errors in the main memory. To prevent system hanging. This memory can be used in servers in large numbers and volumes. And in addition, it has various technologies with special applications such as: Persistent.<\/p>\n<\/div><\/div><\/div> In addition to SATA which is widely used in personal computers, External storage (SSD, HDD, etc.) in servers supports the SAS standard. which provides us with much more bandwidth and simultaneous connections on one cable And of course, the SAS standard has more features compared to the SATA.<\/p>\n<\/div><\/div><\/div> As mentioned above, this hardware memory (Raid Controller) is directly responsible for managing the arrangement of peripheral memories in servers which is very important.<\/p>\n<\/div><\/div><\/div> This battery is able to complete the calculations that are being done in the controller during a power outage and not to cause data loss.<\/p>\n<\/div><\/div><\/div> At least two power supplies are installed in the servers, so that if one of the power supplies has faced a problem for any reason, the other one will be in the circuit without shutdown. And the power won’t turn off, the server\u2019s power is much smarter than regular computers and we can see its health status through iLO.<\/p>\n<\/div><\/div><\/div> Risers are devices similar to the PCI port that exists in different types for servers\u2019 hardware development so that you can put the hardware you need such as network card, memory controller card, graphic card and other cards on them.<\/p>\n<\/div><\/div><\/div> It is the body of the server on which all parts are installed.<\/p>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/div>The difference between the server and other workstations<\/strong><\/h2>\n<\/div>
<\/i><\/i><\/span>Server hardware<\/span><\/a><\/h4><\/div>
<\/i><\/i><\/span>Preserving the physical security of information on the server<\/span><\/a><\/h4><\/div>
<\/i><\/i><\/span>Physical appearance of the server<\/span><\/a><\/h4><\/div>
<\/i><\/i><\/span>Smart middleware in servers<\/span><\/a><\/h4><\/div>
<\/i><\/i><\/span>Extensibility<\/span><\/a><\/h4><\/div>
<\/i><\/i><\/span>Long-term server support<\/span><\/a><\/h4><\/div>
<\/span><\/div>
rackmount server or a desktop server (tower)?<\/strong><\/h2>\n<\/div>
\nIf you have a standard rack (with a depth of 100 cm) in your company, it is logical and optimal for your server to be of rack type So that you can provide more ventilation and security while installing it in the rack space.
\nAnd you can make the most of its vicinity to other rack components. But if you don’t have a rack, you can use its tower shape. But not all the differences are in the appearance and location of the server
\nalso the following items are among the main differences between these two categories.<\/p>\n<\/div>
\nTherefore, you can use all kinds of desktop series graphic cards in tower servers, while in rackmount servers, you cannot use any type of graphic card due to the limited space of the graphic card.<\/p>\n<\/div><\/li>Which brand of server is better for you to purchase?<\/strong><\/h2>\n
\n
<\/span><\/div>
What is the difference between server generations?<\/strong><\/h3>\n<\/div>
\nBut if your goal is to launch VDI service through server, the 10th generation server performance will definitely be very remarkable. Therefore, the most important parameter in determining the server generation is your desired application.<\/p>\n<\/div>servers parts and equipments<\/strong><\/h3>\n<\/div>
<\/i><\/i><\/span>Processor<\/span><\/a><\/h4><\/div>
<\/i><\/i><\/span>RAM<\/span><\/a><\/h4><\/div>
<\/i><\/i><\/span>External memory<\/span><\/a><\/h4><\/div>
<\/i><\/i><\/span>peripheral memories controller<\/span><\/a><\/h4><\/div>
<\/i><\/i><\/span>The battery controller<\/span><\/a><\/h4><\/div>
<\/i><\/i><\/span>Power supply<\/span><\/a><\/h4><\/div>
<\/i><\/i><\/span>Riser<\/span><\/a><\/h4><\/div>
<\/i><\/i><\/span>Frame<\/span><\/a><\/h4><\/div>