Blade server

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A server blade is a cost-effective High Availability High Density (HAHD) server designed for high-density computing. It is a server chassis housing multiple thin, module electronic circuit boards, known as server blades. Each blade functions as a system mainboard.

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Huawei blade server models
Huawei provides E6000 and E9000 blade servers. E9000 are mainstream blade servers.

Huawei server architecture
Commercial servers generally are based on the following architectures: Symmetric Multi-Processor (SMP), Non-Uniform Memory Access (NUMA), and Massive Parallel Processing (MPP) Huawei series servers (RHxxx, E6000, E9000, and X6000) uses the SMP.

Whether an E9000 blade is configured with a default BMC IP address
An E9000 blade is not configured with a default BMC IP address. To log in to the management WebUI of a blade, you need to configure the BMC IP address for the blade first. You can log in to the WebUI of the MM910 and configure the iBMC (iMana) IP address of a blade. For details, see Management Modules > MM910 Management Module User Guide > WebUI Overview (Software Version Is (U54)2.20 or Later) > Chassis Settings in the product documentation. http://support.huawei.com/ehedex/hdx.do?docid=DOC1000053358&lang=en&idPath=7919749%7C9856522%7C21782478%7C19955022%7C19961380&clientWidth=1729&browseTime=1456665583989

Whether the WWN of the HBA changes after the board of a blade server is replaced
Does the WWN of the HBA change after the board of a blade server is replaced? Yes. After the WWN changes, the Linux host cannot discover the mapped LUNs. Add the initiator for the host on the ISM again, and run the hot_add command to scan for mapped LUNs.

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