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GS21 1600

GS21 1600 The super-scale mainframe system "GS21 1600 model group" is equipped with our new in-house developed quad core processor, on a single-chip.
Performance is improved by up to 30% compared to the previous model.
GS21 1600 model group also has enhanced Green ICT credentials as well as top class performance and reliability.


In the current challenging business environment, companies are looking to cut their deployment and operating costs by consolidating servers and storage into datacenters. They are also becoming increasingly interested in intra-corporate cloud computing and other IT infrastructure optimization strategies that link multiple systems seamlessly and efficiently using SOA.

In parallel, those same companies are being viewed by the public not only for the products and services they provide, but also on their business continuity, stability, legal compliance, and environmental actions.
In this climate, and as a result of the mainframe server’s crucial role in centralized data processing, its importance is being re-acknowledged.
GlobalServer, with its enhanced performance and reliability, coupled with green IT credentials is able to contribute to customer business growth and improved customer value.

Improved processing performance

  • New processors are integrated quad-core CPU chips.
    A 30 percent performance increase is achieved, compared with the previous GS21 900 model, by the integration of 4 CPUs, with 128KB first level cache and 6MB second level cache, onto a single chip LSI.
  • XAUI technology* is used for the interface between cluster and SSU.
    Achieves a max 80% increase in data transfer speed, compared to GS21 900.
    *10Gigabit Attachment Unit Interface

Improved business continuity

  • Enhanced RAS features on the interface between cluster and SSU
    ensures operation of both SSU in dual configuration if an interface failure should occur.

Green ICT approach

  • Max 20% power consumption reductions, compared to GS 21 900, by use of new high density processors with multi-core technology.
  • Environmentally friendly approach
    Volatile organic compounds have been completely removed from all housing paintwork by use of a new powder coating which does not require solvent


Model 10Q, 10R, 10S, 10, 20R, 20S, 20, 30, 40, 60, 80, 100, 120, 140, 160
No. of CPU 1 to 16
Main Memory Max. 256GB
System Storage Memory Max. 64GB
Channels Max. 256
Supported Channel Types BMC, OCLINK, FCLINK, ONA
Dual Power Options (Cluster, System storage unit)
Frame name Size (mm) Power Requirement (KVA) Weight (kg)
Width Depth Height
Processing Unit 1,674 881 1,800 4.9 1,050
Main Memory 824 881 1,800 1.9 400