2018年2月6日 星期二

Machine relocation in data center migration

Data center migration as a IT operation and maintenance personnel, in addition to IT equipment for routine inspection, fault maintenance, log review and security vulnerabilities protection, but also deal with the relocation of data center machines.
Not long ago, part of the blade servers in the data center needed to be relocated, which happened to involve the Dell M1000e blade case. During the whole relocation process, I found that the setting of DELL M1000e is the most convenient and intelligent compared with other blades. Next, I'll share some of the DELL M1000e usability cases.
 Data centre migration
Convenient management of IP address settings
Because the management network IP address in the new data center is different from the IP address in the old data center management network, it is necessary to reconfigure the management IP address of each component of the tool box, such as tool box switch address, blade management address, etc., so as to facilitate unified management.
In the set of M1000e when compared to other knife box more convenient, requires only two M1000e interface can put the knife box all of the servers in the IP address management and switch management IP address allocation of all completed, greatly shorten the overall relocation time, is satisfied with.
In the above two diagram, only a simple input user name / password /IP address and other information, then save to take effect, without restarting the knife box and other parts.
In contrast, other tool boxes need IP configuration for management module / switch module / computing node respectively, and some tool box parts can only be configured by command line. The whole process is more cumbersome and time consuming.
Summary:
Other tool box configuration management IP addresses are relatively troublesome and more prone to error. The two tool box relocation has brought two different experiences. I feel that the ease of use and manageability of the Dell M1000e knife box is leading in the industry.
Intelligent cooling system for fan
Because there are other related equipment to be moved to the new room, lineation in the cabinet is still relatively confused, there is a bundle of cables to block the part of M1000e positive; I found the fan noise than before the big M1000e, some view that knife box fan speed increased by CMC, the original is because the original cable shielding the normal cooling airflow through the knife box, the knife box area corresponding to temperature rises abruptly, in order to ensure the normal working temperature of the server, M1000e knife box intelligent fan speed in order to reduce the effect of temperature. The cable's influence on heat dissipation is also encountered before on other blade servers, but the knife box fan doesn't respond immediately. So DELL M1000e box is relatively intelligent.
Then, by sorting the cable of the cabinet and removing the obstacles that obstruct the air flow through the knife box, the speed of the fan box is restored to normal.
Simple and convenient FlexAddress Technology
Because of the early acceptance of FCoE (Ethernet optical channel) technology, different brands of tool boxes in the computer room have been used FCoE., but I find that when DELL M1000e changes the network adapter, it has the smallest impact on the existing FCoE network, which can be said to have little impact.
After replacing some network cards with some blade servers, because the MAC addresses of the network cards are changing, it is necessary to reconfigure the tool box switches (including Ethernet and FCoE), or even reconfigure other networks that connect the switchgear switches. The process is very tedious.
And DELL M1000e uses FlexAddress technology to shorten the downtime in a simple and low cost way, so that the network card can be replaced efficiently. How can I do this because M1000 uses FlexAddress? Proprietary technology, any blade box can distribute the global name of the fiber channel, Ethernet and iSCSI controller (WWN) or media access control (MAC) address to M1000e blade server slot, rather than directly allocated to the blade server. By deleting the network and storage identifier from the server hardware, customers can upgrade and replace components or the entire blade server without changing the identifier on the network or resetting the tool box switch. Other blades usually need a separate management interface and proprietary hardware to implement. Unlike these schemes, FlexAddress? It is suitable for any network and can be set directly on the upper part of the integrated chassis management controller (CMC). It only needs to choose the tool box slot to be activated. FlexAddress? Providing permanent network and storage identifier, enabling data centers to cope with predictable or even planned changes, so that servers can be added, upgraded or deleted without affecting the network.

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