Storage expansion device and server

Abstract

The present invention provides a storage expansion apparatus and a server, where the storage expansion apparatus includes: a quick path interconnect QPI interface module, which communicates with a central processing unit CPU through a QPI bus; a peripheral component interconnect express PCIe interface module, which communicates with the CPU through a PCIe bus; an interface selecting module, connected to the QPI interface module and the PCIe interface module separately; a home agent HA module, connected to the interface selecting module; and a memory controller engine MCEng module, connected to the HA module and the interface selecting module separately. The storage expansion apparatus may serve as a CPU memory capacity expansion device, and may also serve as storage expansion hardware of storage IO.

Description

technical field

[0001] Embodiments of the present invention relate to communication technologies, and in particular to a storage expansion device and a server. Background technique

[0002] In a server, computing resources and storage resources are key factors for overall machine performance. With the rapid development of microelectronics technology, the performance of processors is increasing exponentially. Although processor technology is constantly improving, memory capacity is still limited, which prevents server utilization from increasing with processor performance. The reasons are as follows:

[0003] First, the improvement of processor performance is now more through the number of cores and cache, rather than the main frequency; Increase, insufficient memory growth, resulting in imbalance; third, 64-bit applications and operating systems require more memory.

[0004] From the perspective of the utilization rate of the entire server, the bottleneck of the server u...

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