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Weak motor house project relocation work content (plan)
The relocation of the computer room is very complicated. It is not just a moving device. It also needs to develop a series of plans. Today, we will share a room relocation plan.
Room relocation work content
For the relocation of the equipment room, we are divided into the following steps to consider:
1. Preparation of new equipment room 2. Relocation planning 3. Backup of system 4. Preparation of equipment documentation 5. Relocation equipment label 6. Equipment removal, packing and transportation 7. Equipment reinstallation 8. Testing and acceptance. To discuss.
1. Preparation for the new computer room
1.1, confirm the layout of the device
After the basic design of the new equipment room (such as the design of the wall surface, the installation of the special air conditioner, etc.), we need to plan the placement of each cabinet and each network equipment in advance. The specific size of the machine can be measured in advance, and then the specific position of the machine can be planned on site to strive for the most reasonable and full use of the effective space of the machine room. Here you need to pay attention to the problem: if you need to expand the cabinet, put the data information point of the integrated wiring on the distribution frame in advance, so that if the network equipment such as the switch router is moved over and the jumper is installed, the network can be normal. use.
1.2, design integrated wiring
In order to ensure the normal operation of the business, we should design the integrated wiring and wiring system of the new equipment room in advance, and coordinate the fiber access with the telecommunications department to ensure the smooth flow of the external line before the relocation, and ensure that the progress of the relocation is not affected by the line problem. . Provide a comprehensive wiring point comparison table for the new equipment room.
1.3, set the correct physical environment
The correct physical environment should provide security guarantees that meet the requirements of network equipment for site closure, fire prevention, anti-theft, anti-static, proper ventilation, temperature control, and power supply security, including: power control, temperature control: room temperature control Within 15-23o C, if possible, use a temperature sensor for monitoring; humidity control: the humidity in the equipment room should generally be controlled between 45-55%, fire control, lightning strike avoidance, dust, light, space control.
The principles followed here are: the use of space, efforts to maintain temperature control, maintaining the daily maintenance of power and KVM and other comprehensive considerations. Some people have calculated that it is concluded that "the body is about 12cm away from the wall", which is listed here for our reference.
1.4, a reasonable design of the network structure
When considering a new computer room, continue to use the current topology or redesign, and consider the correspondence with the old system.
2. Relocation planning
The relocation of the equipment room generally involves a large number of equipment such as servers, switches, routers, workstations, many software problems, and the allocation of IP in the new computer room. Therefore, if detailed planning is not carried out in advance, the rush to launch equipment for server room and other equipment will inevitably lead to confusion. Therefore, before the relocation, a complete and reasonable relocation plan for the equipment room is required.
In the detailed planning, we need to provide the following materials: network topology diagram of the equipment room, equipment connection diagram and circuit distribution diagram of the equipment room (connection to each line of each equipment), equipment and other IP address allocation table, Application description, service time.
The description of the application is also an important aspect. Each server is running a different application. After we collect this information, we will consider it according to different applications. If the machine fails to start due to system problems during the relocation process, a series of solutions will be prepared. To coordinate other servers to handle this part of the application or use our standby machine to get the machine back to normal operation. This part of the work will be implemented with the cooperation of the users.
The determination of service time is also an indispensable part of the relocation work. We will arrange the downtime of each machine according to the different nature of each server, and determine the whole relocation process according to the different downtime of each machine. Arrange so that the relocation process can proceed smoothly. Avoid unplanned downtime.
Here are the issues to be aware of:
1. If the network configuration of the old and new equipment rooms has changed, it is necessary to plan the new network in advance, and give the information correspondence table of the new and old networks;
2. Network configuration needs to consider the division of VPN, VLAN, DHCP DNS configuration, etc.
3. According to the network topology, reasonably allocate a new IP corresponding to the corresponding domain name and server;
4. Do an IP replacement script. That is, execute the script, shut down before migration, and then get the new IP from the boot device.
3. System detection and backup
Before the relocation, we have to conduct a comprehensive inspection of the existing server equipment, including: hardware configuration detection and software information detection. The preparation work needs to be done well, which is the primary condition for ensuring that the relocation work can proceed smoothly. Through testing, we can not only effectively exclude some hidden dangers before relocation, but also ensure that the failure rate of machinery and equipment is minimized during the relocation process, thus avoiding unplanned downtime in the relocation project.
3.1, detection of hardware devices
For the hardware devices of the server, we will record the hardware configuration information of the server in detail, specify the hardware configuration before relocation, prepare some spare parts in a targeted manner, and repair the server in time when the server is down, and solve the hardware failure in time. Unplanned downtime is generated to avoid unnecessary downtime.
3.2, detection of server software applications
For server software applications, we also need to perform some routine testing to minimize downtime due to software problems. Therefore, the relocation work can be carried out smoothly.
3.3, backup of data
The security of data is very important in every enterprise. The loss of data is not measured by money. Therefore, data backup is particularly important in the process of relocation. Party A is responsible for data backup before relocation, even during the relocation process. In the real case of server system problems, we can also solve problems in the shortest possible time and reduce unplanned downtime. Ensure that the relocation work smoothly carries out the backup of the data here, including all key data, such as: operating system, application, database, server configuration parameters, network device configuration parameters.
4. Preparation of equipment documentation
4.1. Classification and statistics of equipment
At present, our central computer room is located on the fourth floor. The equipments include UPS, patch panels, core switches, servers, firewalls, storage devices, etc. The statistics of the devices currently involved in the equipment room are as follows:
4.1.1, network statistics
To ensure the normal operation of the system after the relocation, a list of equipment of the existing network equipment, a connection list of the network equipment, an original IP address allocation table, and a statistical model of the module cable type are issued.
4.1.2, server, storage and other device statistics
The original storage device, the server confirms, determines the number of servers, the model of the server, etc., and must have detailed table records before moving the server. At the same time, a detailed record is also made for the arrays and switches involved in the SAN network.
Further work to be done is: Give further detailed equipment statistics, including equipment model, configuration, network, power interface and power, etc., and give corresponding form record documents before relocation; determine relevant auxiliary equipment accessories, etc. Also need to have a detailed documentation.
4.2. Statistics of IP addresses
The IP address of the device to be migrated (including the public network and the private network) and the routing status are calculated. The IP mapping table of each device is given. The IP mapping table of the device in the new system and the old system is listed.
4.3. Relocation of various equipment
Generally speaking, the order of equipment relocation is: UPS, server system, communication system, then network equipment, terminal equipment, etc. Of course, you can also consider moving the equipment that does not affect the daily business to the new building, such as some monitors, terminals, mainframes, power cords, etc.
4.3.1, UPS
UPS (Uninterruptible Power Supply) is an important external device that provides a continuous, stable, uninterrupted power supply. Its main function is that when the mains input is normal, the current will be regulated and supplied to the load. When the mains is interrupted, the electric equipment will be supplied with energy in time, so that the equipment can continue to work for a period of time. Good unfinished work.
We need to pay attention to the relocation of UPS: please pay attention not to contact with magnetic substances during the relocation process, the correct switch steps
Under normal circumstances, the correct sequence for turning on the UPS power supply should be: first check whether the power polarity of the input power of the UPS power supply is consistent with the power polarity of the mains power supply line, and then check the total power of the load connected to the output of the UPS power supply. Whether it is within the rated power of the UPS power supply; after satisfying the above conditions, turn on the power switch on the UPS power control cabinet to allow the utility to supply power to the battery pack in the UPS. After a period of time, the power switch of the load is switched one by one. Open, so as to ensure the load current, will not cause excessive impact on the internal power supply line of the UPS power supply, so that the UPS power supply can be effectively protected from internal injuries. The order of properly turning off the UPS power supply should be: first turn off the load connected to the output of the UPS power supply, then turn off the power switch on the power control cabinet. If you do not use the UPS power supply for a long time, you can consider connecting. Unplug the power cable from the mains socket to avoid lightning strikes during the thunderstorm season, which may lead to lightning strikes.
Note the following when placing the UPS in the new computer room:
· Weight bearing: When the UPS is configured for long delay, the battery may be heavier. In this case, consider the floor load;
· Space size: When the UPS is to be maintained, the engineering personnel have a certain implementation space.
· Grounding: There is a good grounding system. Generally, the grounding resistance should be less than 5 ohms.
4.3.2, server
The server is the core of network data. For computer equipment with such high integration and precision, we must be careful when installing and uninstalling parts.
Need to pay attention when relocating
· Turn off the power properly
For a server that has already been configured, its shutdown and opening operations are simple, but if the operation is not done properly, it may cause unnecessary damage to the device. Therefore, it is necessary to give a detailed introduction to the startup and shutdown of the server.
Shutdown operation: 1. Turn off the operating system; 2. Turn off the power of the host; 3. Turn off the peripheral power (such as disk array, tape library, etc.); 4. Turn off the power of other equipment and the cabinet; 5. Turn off the main power.
Power on operation: 1. Turn on the main power supply; 2. Turn on the power of the computer cabinet; 3. Turn on the power of the external device (such as disk array, tape library, etc.); 4. After the external device self-test is completed, turn on the power of the host.
· Server disassembly
The general principle: first turn off all server workstations, turn off the power routers such as switch routers, then turn off the total power, and finally remove the server.
· Comprehensive prevention of static electricity
Although the computer works on electricity, static electricity can cause fatal damage to the computer, especially irreversible damage to the motherboard chip. There are many reasons for static electricity generation: various power supply devices may generate static electricity, computer CRT monitors may generate static electricity, and the walkie-talkie at work will generate a large amount of static electricity in the surrounding space. This requires us to pay special attention to static electricity interference and comprehensive prevention. 1. Try to make the server and its peripherals well grounded. 2. If the equipment is not grounded, when it is necessary to touch the board inside, it should be discharged with a grounding wire or other discharge facility. 3. Wear anti-static gloves when working on the device. If not, you can also touch the metal outside the chassis to remove the static electricity.
· Cable connection (plug and drop)
When the cable is connected (plugged and unplugged), the device connected (or to be connected) through the cable should be powered off, that is, the power of the device should be turned off before the cable is connected (plugged and unplugged). Otherwise, if the cable is connected with power, it may cause unpredictable damage to the equipment.
4.3.3, network equipment
The network equipment mainly includes devices such as firewalls, routers, and switches. These devices pay attention to the marking during the relocation process, and perform correct parameter settings according to the structure of the new network after accessing the new network. It should be noted here that the router uses a power supply with a ground. Generally, the voltage between the ground and the ground of the power supply is <4V, and the voltage of the zero fire/ground fire is 220V. Ground protection basically requires that the equipment connected to the Internet should have a protective ground line. These devices include the host, workstation, HUB, switch, router, and MODEM connected to the router. The terminal or PC that configures the router must also use a power supply with a ground.
Before the relocation, check the configuration of the equipment, properly cut off the power, and be careful not to collide during the handling.
5. Relocation equipment label
Our goal is: to master the original network situation, and strive to do every physical and logical cable, the dedicated line is in mind, all network equipment configuration, each interface must be clear, all equipment, cable Labels must be labeled. All interfaces must be configured with instructions on the text. When labeling a device, it is generally a method of attaching a device nameplate, and the cable adopts a dedicated identification ring.
The planning of equipment labels is generally formulated by each unit. There is no uniform standard. Here we can consider numbering according to the type, function and area of ​​the equipment. Each machine must be labeled before moving, especially for multi-port machines. Each wiring port is labeled and corresponds to the other end of the wiring, such as the storage port of the storage cabinet and the controller, storage and server. The connection port of the optical fiber, etc., and the ip of each network card of each server.
Finally, after the device identification is completed, pay attention to the backup work of the identification, in case the device is reinstalled for verification. All the labels, one-to-one correspondence, to ensure that a certain machine and equipment can be accurately found during the relocation process, to ensure the smooth progress of the relocation.
6. Equipment removal, packing and transportation
After the equipment is uniformly marked, the equipment is removed and the cable is removed. Here we need to pay attention to:
· Ensure that all work is done in the event of a power outage;
· Consider the disassembly steps of each component;
· Demolition in strict accordance with the specifications of various types of equipment.
After the equipment is removed, special relocation protection devices are installed, such as cables placed in the cable duct for protection. After that, the car was loaded under the common supervision of each responsible person. Under the care of everyone, the equipment was transported to the machine room of the new building. Since the equipment we carry, such as servers, UPS, terminals, etc., are highly integrated and highly sophisticated equipment, care must be taken to prevent equipment collisions throughout the process.
6.1. Disassembly of equipment
The engineer determines the disassembly time of the equipment according to the time of the project schedule, and strictly follows the standardization operation to ensure that the equipment is not physically damaged.
Steps:
1. Unplug the data cable and power cable of the connected device, remove it from the cabinet, place all the power cables in a uniform package, write the name of the package on the package, and pack it for shipment.
2. Remove the equipment from the cabinet, carry out the dust removal work, put it in the designated packing box, write the name of the goods on the outer casing of the packing box, and pack it for shipment.
3. Remove the rails of the equipment from the rack and label them, indicate the name of the equipment used, put it in the designated packing box, mark the name of the goods on the packing box, and pack and seal the goods. .
4. Remove the PDU from the cabinet, put it in the designated packing box, write the name of the goods on the outer casing of the packing box, and pack it for shipment.
5. All auxiliary equipment such as screws are classified and packaged and stored in the packing box of their associated equipment.
6.2, transportation process
Use professional equipment to transport the box to ensure the safety of the hardware equipment during transportation. Packaging requirements are in accordance with industry standards. A list of goods is attached, which is checked and accepted by the designated personnel and signed for confirmation.
1. Packed by hand cart to the transport vehicle, carefully transported by professional porters to the transport vehicle, neatly placed, fixed, to prevent slipping.
2. After the escort has inspected the goods, they are escorted to a new office.
3. During the transportation process, the vehicle must pay attention to the slow running of the vehicle to prevent damage to the equipment in the case of bumpy roads.
4. When the goods are unloaded, the professional porter will first unload the goods to the door of the freight elevator, and then the goods will be transported to the designated position by the professional porter after the goods are inspected by the escort. The escort is ready to install after checking again.
7. Equipment reinstallation
7.1, physical installation
After the equipment is transported to the new equipment room, first determine the location of the equipment, check whether the power supply and other related matters are completed, and finally, physically connect.
Need to pay attention here:
· Regional Planning. When the device is installed, try to plan the area according to the network topology and reserve space and related interfaces for future expansion.
· Effectively secure the cabinet. The cabinet cannot be placed directly on the static floor, but it must be effectively fixed so that the installation is reliable.
According to the installation plan, the engineer opens the package and puts the rack on the server according to the installation plan. Strictly follow the normalized operation and install the server to the specified location.
1. Install the PDU: The installation engineer first installs the PDU and fixes the PDU to the specified location on the cabinet according to the installation plan requirements.
2. Mounting rails: The installation engineer installs the rails of the server to a specified location on the cabinet for the cabinet on the server.
3. Install the server: The installation engineer installs the server to the specified location on the cabinet.
4. Install the power cord: Connect the server to the PDU with the power cord and bundle the power cord on the patch panel.
5. Install SWICH: Fix the SWICH to the specified location on the cabinet.
6. Connect the data cable: connect SWICH to the server and connect to the network cable.
7.2, equipment power system verification
After the physical connection of the device is completed, power up the device, test the power supply voltage, and check the software and hardware of the system after power-on.
8. Testing and acceptance
After the device is reinstalled, the next thing we need to do is to open the device, see if the data is corrupt, and make the relevant software settings. In general, the work to be done roughly includes the following items:
1. Recovery of the server status to see if data loss or corruption has occurred. Since we have backed up the system data before, we should restore the data before the relocation in case of such data corruption.
2. Perform the adjustment of the corresponding IP address.
3. Make adjustments to the relevant DNS settings.
4. Make adjustments to related software.
5. Conduct network-wide device connectivity testing
6. Perform application testing to ensure proper system operation.
7. All equipment is restarted to see if the speed and quality of the equipment are up to standard.
8. Accept and record the relevant logs.
Points to note:
1, the choice of relocation time Because our system needs to ensure real-time, uninterrupted operation, so try to choose 2-3 points in the middle of the holiday or working day, when the amount of visits is relatively low, reducing the impact on the business. With this in mind, we will be relocating during the long vacation.
2. During the relocation process, pay attention to the protection of the label and prevent the label from falling off, especially the label of the cable such as fiber, so as not to affect the subsequent reorganization. Sometimes, it may be that a fiber jumps wrongly, which may affect the smoothness of the entire network.
3, data backup Before the system migration, you must make a backup of each system ( tape drive backup) to ensure the integrity and correctness of the data.
4. Test the equipment in advance to ensure that all types of equipment have clear test methods after the relocation.
5. Formulating a contingency plan For the emergency plan of various emergencies that may occur during the relocation process, such as how the host computer can not operate normally, how can the network core equipment fail to operate normally, and how to do so when the power supply is unexpectedly powered off.
6. Responsibility When a person moves, there must be a handover step to detail what a specific person does. When the equipment is transported, it must be packed, registered, shipped, and received.
7. Ensure that the new computer room's mains supply is normal during the relocation phase, and that the freight elevators are working normally. After all the preparations are in place, the specific relocation work can begin.