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HiperSocket

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HiperSockets

HiperSockets is an IBM technology that facilitates high-speed communication between logical partitions (LPARs) within a single central processor complex (CPC). By leveraging system memory, HiperSockets enables in-memory TCP/IP connectivity without the need for physical networking hardware, such as cables or adapters. [1]

Overview

Introduced with the IBM zSeries mainframes, HiperSockets allows multiple operating systems—including z/OS, z/VM, z/VSE, and Linux on IBM Z—to communicate efficiently within the same physical system. This internal communication is achieved through an emulated network that operates at memory speed, significantly reducing latency compared to traditional external network connections.[1]

Technical Implementation

HiperSockets utilizes the Internal Queued Direct Input/Output (iQDIO) protocol, emulating the link layer of an Open Systems Adapter (OSA) within the system’s firmware. This setup creates a virtual local area network (VLAN) within the CPC, allowing seamless data transfer between LPARs.[1]

Benefits

  • High Performance: Operating at memory speeds, HiperSockets provides low-latency communication, enhancing the performance of applications that require rapid data exchange.
  • Cost Efficiency: By eliminating the need for physical networking components, HiperSockets reduces hardware costs and simplifies system architecture.
  • Enhanced Security: Since data transmission occurs entirely within the system’s memory, the risk of external interception is minimized, bolstering data security.
  • Improved Reliability: The absence of physical networking hardware reduces potential points of failure, thereby increasing system reliability and availability.

Limitations

A notable limitation of HiperSockets is its confinement to a single physical system; it cannot facilitate communication between LPARs on different CPCs. However, server consolidation strategies can maximize the utilization of HiperSockets by hosting more applications within the same system.[2]

Use Cases

HiperSockets is particularly beneficial in environments requiring rapid and secure inter-partition communication, such as:

  • Server Consolidation: Facilitates efficient communication between consolidated servers within a single IBM Z system.[2]
  • Data-Intensive Applications: Ideal for applications that demand high-speed data transfer with minimal latency.
  • Secure Transactions: Suitable for scenarios where data security is paramount, as it minimizes exposure to external networks.

Conclusion

HiperSockets represents a significant advancement in internal communication technology for IBM Z mainframes, offering a high-performance, secure, and cost-effective solution for inter-LPAR connectivity within a single CPC.[1]

See also

  1. ^ a b c d "HiperSockets". www.ibm.com. Retrieved 2025-01-01.
  2. ^ a b "What is a HiperSocket?". www.ibm.com. 2016-07-11. Retrieved 2025-01-01.
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