IBM System z10 Enterprise Class


The future runs on System z

In today’s world, IT is woven in to almost everything that a business does and consequently is pivotal to a business. Yet technology leaders are challenged to manage sprawling, complex distributed infrastructures and the ever growing flow of data while still being able to protect the data and be responsive to the demands of the business. They must continually evaluate and decide when and how to adopt a multitude of innovations to keep the company competitive. The IBM System z10™ Enterprise Class (z10 EC) is a perfect choice for enterprise computing. It can help reduce and control rising costs and improve provisioning speed and data center security and resiliency—at any scale. It aligns technology and business—giving you the freedom and the tools you need to innovate and be competitive.

With leadership capabilities for security, availability, scalability, virtualization and management, the System z10 Enterprise Class (z10 EC) is a world class enterprise server designed to meet IT and business challenges head-on, and serve as the cornerstone in your dynamic infrastructure. The z10 EC provides performance and capacity for growth and large scale consolidation, improved security, resiliency and availability while lowering both risk and cost. As environmental concerns raise the focus on energy consumption, the z10 EC is designed to reduce energy usage and save floor space when consolidating workloads from distributed servers. Specialty engines continue to help users expand the use of the mainframe for a broad set of applications, while helping to lower the cost of ownership. The z10 EC is the platform that delivers technologies that businesses need today along with a foundation to serve the future.

Benefit Feature/Function
Capacity on Demand
Specialty Engines
I/O Connectivity
Cluster Systems
Processor core types: CP/IFL/ICF/zAAP1/zIIP1
Model Minimum Maximum Increments
E12 1/1/1/0/0 12/12/12/6/6 1/1/1/1/1
E26 1/1/1/0/0 26/26/16/13/13 1/1/1/1/1
E40 1/1/1/0/0 40/40/16/20/20 1/1/1/1/1
E56 1/1/1/0/0 56/56/16/28/28 1/1/1/1/1
E64 1/1/1/0/0 64/64/16/32/32 1/1/1/1/1
Coupling Links
ISC-32 48
IC 32
ICB-43 16
Maximum # Links 644
InfiniBand Coupling Links 32
Minimum: 0/0/0/0/0/0/0 ESCON/FICON Express8/FICON Express4/FICON Express25/FICON Express5/OSA-Express3/OSA-Express2
Maximum: 1024/336/336/336/120/96:48/48 ESCON/FICON Express8/FICON Express4/FICON Express25/FICON Express5/OSA-Express3/OSA-Express2
Increments: 4/4/4/4/2/4/2/2/1 ESCON/FICON Express8/FICON Express4/FICON Express25/FICON Express5/OSA-Express3 GbE, 1000BASE-T/OSA-Express3 10 GbE/OSA-Express2 GbE, 1000BASE-T/OSA-Express2 10 GbE
HiperSockets Up to sixteen high-speed ‘virtual’ Local Area Networks (LANs)
Crypto Express3 and Crypto Express2 Optional up to 8 features (16 PCI-X adapters), minimum order is 2 features
Processor Memory
Model Minimum Maximum7
E12 16 GB 3848 GB
E26 16 GB 752 GB
E40 16 GB 1136 GB
E56 16 GB 1520 GB
E64 16 GB 1520 GB
Upgradeability Upgradeable within the z10 EC family

Upgrading to the E64 from other z10 EC models will require a planned outage

Upgradeable from IBM System z9 Enterprise Class (z9 EC) and IBM eServer™ zSeries® 990 (z990)
Physical Configuration Model E12, minimum9 Model E64, maximum10
Weight 1248 kg (2807 lbs) 2271 kg (5110 lbs)
Footprint 2.83 Sq meters (30.44 Sq ft) 2.83 Sq meters (30.44 Sq ft)
Service 5.73 Sq meters (61.60 Sq ft) 5.73 Sq meters (61.60 Sq ft)
Input 9.7 kW 27.5 kW
Heat 33.1 KBTU/hr 93.8 KBTU/hr
Air Flow Nominal11 CFM 1155 m3/m CFM 2465, m3/m
Height 201.32 cm (79.26 inches) 201.32 cm (79.26 inches)
General Conforms to EIA guidelines for frames
Supported Operating Systems
z/OS: z/OS V1.9 and subsequent releases
z/VM: z/VM 5.3 and subsequent releases
Linux on System z: Red Hat RHEL 4 and subsequent releases, Novell SUSE SLES 9 and subsequent releases, Linux as z/VM guest
z/VSE: z/VSE V4.1 and subsequent releases
TPF: TPF 4.1
z/TPF: z/TPF 1.1

1 If ordering a zAAP or a zIIP, one or more general purpose processor (CP) per the specialty engine is required. One CP can satisfy the requirement for either or both of the specialty engines.

2 ISC-3 Peer mode only

3 ICB-4 Not available on E64

4 64 external and 32 internal

5 Available only when carried forward on an upgrade

6 Initial order of Crypto Express3 requires 2 features, maximum of 8 features

7 Excludes the standard fixed size of 16 GB HSA

8 Full installed capacity can not be used until second book is installed due to 32 GB increments for memory between 256-512 GB

9 Model E12 with one I/O cage and no Internal Battery Feature (IBF)

10 Model E26 with three I/O cages and IBF with a combined max of 64

11 Airflow is designed to increase as the local ambient room temperature increases. Nominal airflow assumes 77 degrees F ambient.

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Martin Lagerberg

Technical Support

Browse z Systems


Infrastructure matters. Businesses turn to the IBM mainframe for unmatched security, operational efficiency, speed, seamless scale, and lower cost per transaction. The IBM z System, the world’s premier data and transaction engine, is enabled for mobile, integrates transactions and analytics, and delivers efficient and trusted clouds.


IBM z Systems combine leading-edge innovation and unparalleled capabilities to power cloud, business analytics, mobile applications, and the most important workloads.

Operating Systems

IBM z Systems supports multiple operation systems:

Through its hybrid computing capability, IBM z Systems with IBM z BladeCenter® Extension (zBX) also supports IBM® AIX® on Power, Microsoft Windows® and Linux® on System x®