I/O Connectivity

Designed for increased performance: FICON Express8S contains a new IBM ASIC which is designed to support the 8 GBps PCIe interface to the PCIe I/O drawer and increased start I/Os. In addition, a hardware data router has been added in support of the zHPF and FCP protocols for path length reduction and increased throughput. FICON Express8S supports a link data rate of 2, 4, or 8 Gbps autonegotiated.

FICON and zHPF performance on System z

FICON and zHPF performance on System z

The High Performance FICON for System z journey:

In laboratory measurements, using FICON Express8S in a z196 with the zHPF protocol and small data transfer I/O operations, FICON Express8S operating at 8 Gbps achieved a maximum of 92,000 IOs/sec, compared to the maximum of 52,000 IOs/sec achieved with FICON Express8 operating at 8 Gbps. This represents approximately a 77% increase and applies to reads, writes, and a read/write mix. Results on zEC12 and zBC12 are comparable.

In laboratory measurements, using FICON Express8S in a z196 with the zHPF protocol and a mix of large sequential read and write data transfer I/O operations, FICON Express8S operating at 8 Gbps achieved a maximum throughput of 1600 MB/sec (reads + writes) compared to a maximum of 770 MB/sec (reads + writes) achieved with FICON Express8 operating at 8 Gbps. This represents approximately a 108% increase. Results on zEC12 and zBC12 are comparable.

This performance data was measured in a controlled environment running an I/O driver program under z/OS. The actual throughput or performance that any user will experience will vary depending upon considerations such as the amount of multiprogramming in the user's job stream, the I/O configuration, the storage configuration, and the workload processed.

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Browse System z


Hardware

IBM provides world-class IBM mainframe technology to help today's enterprises respond quickly to evolving business conditions and with extreme flexibility. From automation to advanced virtualization technologies and open industry standards, IBM mainframes help deliver competitive advantages for enterprises contributing and succeeding on a smarter planet.

Operating Systems

IBM System z supports multiple operation systems:

Solutions

IBM's technology, solutions and industry expertise can help you find the competitive edge with a sharper understanding of your customers. Our System z solutions combine the foundation of IBM hardware, software and middleware with flexible financing and packaging options to help your business meet and overcome the challenges of doing business in the on demand world. IBM can help you develop a customer-centric view—and assist you in delivering the right solution and the right products.


Questions?

Do you have questions about the new I/O functionalities?

Cables

Do you have the appropriate FICON jumpers, patch cables, and conversion kits for your server? For all your cabling needs see the System z Fiber Cabling Services in the IBM Resource Link Services section (registration required)

IBM education

Are you ready for FICON? Learn about FICON Planning, Operation, Implementation, and Problem Determination, Course #ES326