Lenovo data center simultaneous transmission diary-, -- 201409

Lenovo data center simultaneous transmission diary-, -- 201409
Today, Lenovo's after-sales service has installed 501 network and Lenovo hard disk protection systems, and you can record it as needed. Experience will continue to accumulate.
501 the configuration of the new data center started to work as early as the summer vacation. From the classroom painting to wiring, purchasing, purchasing, and assembling new computer tables, it is almost two months now,
My task is mainly to install the system and configure various things, as well as use, maintenance, and management of the data center in the future. The preliminary work has been basically completed today, so the next step is my work.

IDC Configuration:
Two new switches (forget the specific model and add them tomorrow morning );
A new high-performance gigabit router (Gigabit) for Huawei Internet cafes );
Computer Configuration is quite good: i3 processor, 4G memory, a T hard disk (really a waste) add Lenovo's new keyboard and mouse (which is much easier than the previous mouse and keyboard versions ),
The computer is pre-installed with the family edition win7 and a one-click recovery similar to the hard disk protection system (that is, there is no simultaneous transmission );


At this morning, the meeting was about to arrive at 501 as soon as the class was started, because the teacher told me that Lenovo's after-sales service had arrived;

When Master Wang arrives, he installs the Lenovo simultaneous transfer and hard disk protection systems on each machine before performing simultaneous transmission;

The following problems are encountered today:

1. The Network cables of several machines are disconnected;
During the last night's inspection, nine computer network cables were not connected to the switch. After the crystal headers were fixed one by one, five still failed;
I suspect it may be a problem with the crystal head, but it still doesn't work. It doesn't seem like this. If you use scissors, it will be fixed.
Cut the nylon line and try to find a corresponding network cable (marked on it). Use a tester to test the cable,
Is there a problem with the network cable? No. I saw a root test by the master yesterday. I should have a problem. Teacher Liu called to ask Master Wang, but he was not connected.
It may be the ones that correspond to those that have not been inserted (the switch slots are not part of the lines that have not been inserted ). After a root test, all 41 machines were connected to the switch normally.
Next, select a sender, and then assign the sender number.

2. Start simultaneous transmission, but the speed is very slow;
According to the theory, the configured Gigabit route, coupled with the new switch, the same transmission speed peak should be up to 30 megabytes per second, that is to say, it will be about 10 minutes for the same win7;
However, at the beginning, the speed was exceptionally slow, and the speed was only over 300 KB per second. It would take over 20 hours to get this speed. Isn't that bullshit! Master Wang suspected that it was a problem with switches and routes,
However, they are all new and should be fast. After the speed test, it is found that some machines are particularly slow. Master Wang said that the problem may be caused by the crystal head, it is used for many years and never changed (the cables in the IDC are used for many years );
Replace those slow crystal headers, which is indeed effective, more than 30000 KB per second, this speed is just a word, fast! In 9 minutes, all 40 machines in a Windows 7 system were transferred. During this period, Master Wang and I
I had to finish the course I had bought. During the conversation, I also asked a lot of questions I encountered when managing 504.

3. Prepare for simultaneous transfer again. The hard disk partition and task manager will be lost;
In the evening, I worked with sijun to configure the software required by win7 first, and then set up ubuntu tomorrow. However, I encountered several problems: I was prepared to share the software with me again, so I couldn't wake up, and I couldn't separate hard disk partitions, the task manager is gone;
During the wake-up process, a total of four servers were awakened. The others had to be manually woken up. The partitions and task manager could not be deleted this morning. I wonder if the hard disk protection system is troublesome? Come on, let's talk about it tomorrow. Come here today!


Install new software in the IDC and use Lenovo for simultaneous transmission

The data center is similar to the internet cafe system. It only requires a sub-system and a hard disk pair. Otherwise, if a single data center has hundreds of sub-servers, how long does it take to build a data center !!!!

IDC Lenovo Kai Tian M4390 Network Co-Transmission Problem MB Network Co-transmission must all computers on the transfer speed can reach around kb/S?

Dear Lenovo user, you can try to replace other switch devices to see if they are normal, or use two models separately for connection and transmission testing.
If the above solution does not solve your problem, you are welcome to use Lenovo's official online consulting service.