息送給服務器，客戶機從服務器讀寫數(shù)據(jù)，由于客戶機數(shù)量較多，如果它們之間采用一樣的連線就可能死機。各臺客戶機從服務器讀取的數(shù)據(jù)可以一樣，也可以不一樣。也可以是所有客戶機顯示內容一樣，多臺操作站冗余運行。每臺操作站與服務器交換的數(shù)據(jù)較多，可采用100BASE端口，服務器和控制器數(shù)據(jù)交換較少，該采用10BASE端口，客戶機之間基本不交換數(shù)據(jù)，也可采用10BASE端口。如果不這樣，很可能產生客戶機死機。
客戶PC和服務器的配置不合適
客戶PC的配置取決于準備使用的操作系統(tǒng)。如DOS和Windows 3.1只要8MB內存就可運轉，而Windows 9x至少要16～32MB，Windows NT少要32MB，好是64MB，特別是Windows 2000，更需要64MB內存。除內存外對Windows 2000來說，應采用更快的處理機和更大空間的硬盤。
在選用客戶PC時，雖然可以比服務器的機器差一些，但內存一定要比上面的要求還高一些。因為機器除運轉操作系統(tǒng)以外，還要與服務器讀寫數(shù)據(jù)。
服務器的CPU和硬盤驅動器承受網(wǎng)絡上所有客戶機的服務請求。服務器需要大量存儲器，比客戶機存儲器容量要高得多才行。
好知道主板上存儲器插槽數(shù)目和支持的大內存數(shù)量。檢查隨DCS服務器來的存儲器是如何配置的。單條64MB DIMM機器比用16MB模塊插滿4個插槽的機器更容易升級。
服務器好采用支持ECC內存的存儲器。當ECC存儲器與一個支持ECC的主板芯片組一起使用時，可糾正單個位存儲器錯誤和檢測多位存儲器錯誤。
硬盤驅動器對于服務器也很重要，連在網(wǎng)上的計算機都共享服務器文件，硬盤驅動器應耐用、可靠和適用于同時為多個用戶服務的。因此，采用SCSI硬盤驅動器較合適。SCSI驅動器有智能和較快的轉速，采用UtraWideSCSI時從驅動器到系統(tǒng)間有極高數(shù)據(jù)傳輸率。無論是IDE硬盤驅動器還是SCSI硬盤驅動器，都可采用RAID技術，能更安全地保存數(shù)據(jù)，提高服務器質量。SCSI總線可連接多臺硬盤驅動器，采用一臺9GB的硬盤驅動器沒有9臺1GB的SCSI硬盤驅動器的效率高。The information is sent to the server, and the client reads and writes data from the server. Due to the large number of clients, if the same connection is used between them, they may crash. The data read by each client from the server can be the same or different. It can also be that all clients display the same content, and multiple operating stations operate redundantly. Each operating station can exchange more data with the server, and 100base port can be used. There is less data exchange between the server and the controller. 10base port is used. There is basically no data exchange between clients, and 10base port can also be used. If this is not the case, a client panic is likely to occur.
Improper configuration of client PC and server
The configuration of the customer PC depends on the operating system to be used. For example, dos and windows 3.1 only need 8MB of memory to run, while Windows 9x needs at least 16 ~ 32MB, Windows NT needs at least 32MB, preferably 64MB, especially windows 2000 needs 64MB of memory. In addition to memory, for Windows 2000, a faster processor and a larger hard disk should be used.
When selecting the client PC, although it can be worse than the server machine, the memory must be higher than the above requirements. In addition to the operating system, the machine also has to read and write data with the server.
The CPU and hard disk drive of the server bear the service requests of all clients on the network. The server requires a large amount of storage, which is much higher than the storage capacity of the client.
It is best to know the number of memory slots on the motherboard and the maximum amount of memory supported. Check how the storage that comes with the DCS server is configured. A single 64MB DIMM machine is easier to upgrade than a machine with a 16MB module plugged into four slots.
The server should preferably use memory that supports ECC memory. When ECC memory is used with a motherboard chipset that supports ECC, it can correct single bit memory errors and detect multi bit memory errors.
Hard disk drives are also important for servers. Computers connected to the network share server files. Hard disk drives should be durable, reliable and suitable for serving multiple users at the same time. Therefore, SCSI hard disk drive is more appropriate. SCSI drives have intelligence and fast speed. When using utrawidescsi, there is a very high data transfer rate from the drive to the system. No matter IDE hard disk drive or SCSI hard disk drive, RAID technology can be used to save data more safely and improve server quality. SCSI bus can connect multiple hard drives. One 9GB hard drive is not as efficient as nine 1GB SCSI hard drives.