Posts Tagged ‘zAware’

IBM LinuxONE and Open Mainframe Project Expand the z System

August 20, 2015

Meet the new IBM z System; called LinuxONE Emperor (named after the Emperor Penguin.) It is a z13 running only Linux. Check out the full announcement here.

Primary LinuxOne emperor

Courtesy of IBM, LinuxONE Emperor, the newest z System

DancingDinosaur is excited by several aspects of this announcement:  IBM is establishing, in conjunction with the Linux Foundation, an Open Mainframe Project; the company is breaking with its traditional mainframe pricing model; it also is putting KVM and Ubuntu on the machine; and it is offering a smorgasbord of app-dev options, including some of the sexiest in the industry today. DancingDinosaur never believed it would refer to a mainframe as sexy (must be time to retire).

Along with LinuxONE Emperor IBM announced an entry dedicated Linux machine, the LinuxONE Rockhopper. (BTW; notice the new playfulness in IBM’s product naming.) Rockhopper appears to be very similar to what IBM used to call a Business Class z, although IBM has stepped away from that designation. The closest you may get to a z13 business class machine may be LinuxONE Rockhopper. Rockhopper, according to IBM, is designed for clients and emerging markets seeking the speed, security and availability of the mainframe but in a smaller package.

The biggest long term potential impact from the announcement may come out of the Open Mainframe Project. Like many of IBM’s community project initiatives, IBM is starting by seeding the open community with z code, in effect creating the beginning of an open z System machine.  IBM describes this as the largest single contribution of mainframe code from IBM to the open source community. A key part of the mainframe code contributions will be the z’s IT predictive analytics that constantly monitor for unusual system behavior and help prevent issues from turning into failures. In effect, IBM is handing over zAware to the open source community. It had already announced intentions to port zAware to Linux on z early this year so it might as well make it fully open. The code, notes IBM, can be used by developers to build similar sense-and-respond resiliency capabilities for other systems.

The Open Mainframe Project, being formed with the Linux Foundation, will involve a collaboration of nearly a dozen organizations across academia, government, and corporate sectors to advance development and adoption of Linux on the mainframe. It appears that most of the big mainframe ISVs have already signed on. DancingDinosaur, however, expressed concern that this approach brings the possibility of branching the underlying functionality between z and Linux versions. IBM insists that won’t happen since the innovations would be implemented at the software level, safely insulated from the hardware. And furthermore, should there emerge an innovation that makes sense for the z System, maybe some innovation around the zAware capabilities, the company is prepared to bring it back to the core z.

The newly announced pricing should also present an interesting opportunity for shops running Linux on z.  As IBM notes: new financing models for the LinuxONE portfolio provide flexibility in pricing and resources that allow enterprises to pay for what they use and scale up quickly when their business grows. Specifically, for IBM hardware and software, the company is offering a pay-per-use option in the form of a fixed monthly payment with costs scaling up or down based on usage. It also offers per-core pricing with software licenses for designated cores. In that case you can order what you need and decrease licenses or cancel on 30 days notice. Or, you can rent a LinuxONE machine monthly with no upfront payment.  At the end of the 36-month rental (can return the hardware after 1 year) you choose to return, buy, or replace. Having spent hours attending mainframe pricing sessions at numerous IBM conferences this seems refreshingly straightforward. IBM has not yet provided any prices to analysts so whether this actually is a bargain remains to be seen. But at least you have pricing option flexibility you never had before.

The introduction of support for both KVM and Ubuntu on the z platform opens intriguing possibilities.  Full disclosure: DancingDinosaur was an early Fedora adopter because he could get it to run on a memory-challenged antiquated laptop. With the LinuxONE announcement Ubuntu has been elevated to a fully z-supported Linux distribution. Together IBM and Canonical are bringing a distribution of Linux incorporating Ubuntu’s scale-out and cloud expertise on the IBM z Systems platform, further expanding the reach of both. Ubuntu combined with KVM should make either LinuxONE machine very attractive for OpenStack-based hybrid cloud computing that may involve thousands of VMs. Depending on how IBM ultimately prices things, this could turn into an unexpected bargain for Linux on z data centers that want to save money by consolidating x86 Linux servers, thereby reducing the data center footprint and cutting energy costs.  LinuxONE Emperor can handle 8000 virtual servers in a single system, tens of thousands of containers.

Finally, LinuxONE can run the sexiest app-dev tools using any of the hottest open technologies, specifically:

  • Distributions: Red Hat, SuSE and Ubuntu
  • Hypervisors: PR/SM, z/VM, and KVM
  • Languages: Python, Perl, Ruby, Rails, Erlang, Java, Node.js
  • Management: WAVE, IBM Cloud Manager, Urban Code Openstack, Docker, Chef, Puppet, VMware vRealize Automation
  • Database: Oracle, DB2LUW, MariaDB, MongoDB, PostgreSQL
  • Analytics: Hadoop, Big Insights, DB2BLU and Spark

And run the results however you want: single platform, multi-platform, on-prem and off-prem, or multiple mixed cloud environments with a common toolset. Could a combination of LinuxONE alongside a conventional z13 be the mainframe data center you really want going forward?

DancingDinosaur is Alan Radding, a veteran IT analyst and writer. Please follow DancingDinosaur on Twitter, @mainframeblog. See more of his IT writing at and here.

zEnterprise EC12: the Next Hybrid Mainframe

August 30, 2012

On Tuesday, IBM launched the zEnterprise EC12 (zEC12), a machine it had been hinting at for months as zNext, the next hybrid mainframe. As you would expect from the latest release of the top-of-the-line mainframe, the zEC12 delivers faster speed and better price/performance. With a 5.5 GHz core processor, up from 5.2 GHz in the z196, and an increase in the number of cores per chip (from 4 to 6) IBM calculates it delivers 50% more total capacity in the same footprint. The vEC12 won’t come cheap but on a cost per MIPS basis it’s probably the best value around.

More than just performance, it adds two major new capabilities, IBM zAware and Flash Express, and a slew of other hardware and software optimizations. The two new features, IBM zAware and Flash Express, both promise to be useful, but neither is a game changer. IBM zAware is an analytics capability embedded in firmware. It is intended to monitor the entire zEnterprise system for the purpose of identifying problems before they impact operations.

Flash Express consists of a pair of memory cards installed in the zEC12; what amounts to a new tier of memory. Flash Express is designed to streamline memory paging when transitioning between workloads. It will moderate workload spikes and eliminate the need to page to disk, which should boost performance.

Unless you are finding it difficult to keep your z machines running or are experiencing paging problems these capabilities won’t be immediately helpful.  They really are intended for shops with the most demanding workloads and no margin for error. The zEC12 also continues IBM’s hybrid computing thrust by including the zBX and new capabilities from System Director to be delivered through Unified Resource Manager APIs. You’ll need a zBX mod 3 to connect to the zEC12.

This is a stunningly powerful machine, especially coming just 25 months after the z196 introduction. The zEC12 is intended for optimized corporate data serving. Its 101 configurable cores deliver a performance boost for all workloads. The zEC12 also comes with the usual array of assist processors, which are just configurable cores with the assist personality loaded on. Since they are EC12 cores, they bring a 20% MIPS price/performance boost.

The processor has been optimized for better software performance, particularly for Java, PL/1, and DB2 workloads.  As with the z196, it handles out of order instruction processing and multi-level branch prediction for complex workloads. The new machine’s larger L2, L3, and L4 caches deliver almost 2x more on the chip to speed data to the processor. In addition, Flash Express provides 1.6 TB of usable capacity (packaged in pairs for redundancy, 3.2 TB total).

IBM estimates up to a 45% improvement in Java workloads, up to a 27% improvement in CPU-intensive integer and floating point C/C++ applications, up to 30% improvement in throughput for DB2 for z/OS operational analytics, and more than 30% improvement in throughput for SAP workloads. IBM has, in effect, optimized the zEC12 from top to bottom of the stack. DB2 applications are certain to benefit as will WebSphere and SAP.

IBM characterizes zEC12 pricing as follows:

  • Hardware—20% MIPS price/performance improvement for standard engines and specialty engines , Flash Express runs $125,000 per pair of cards (3.2 TB)
  • Software—update pricing will provide 2%-7% MLC price/performance for flat-capacity upgrades from z196, and IFLs will maintain PVU rating of 120 for software  yet deliver more 20% MIPS
  • Maintenance—no less than 2% price performance improvement for standard MIPS and 20% on IFL MIPS

IBM is signaling price aggressiveness and flexibility to attract new shops to the mainframe and stimulate new workloads. The deeply discounted Solution Edition program will include the new machine. IBM also is offering financing with deferred payments through the end of the year in a coordinated effort to move these machines now.

As impressive as the zEC12 specifications and price/performance is DancingDinosaur is most impressed by the speed at which IBM delivered the machine. It broke with its with its historic 3-year release cycle to deliver this potent hybrid machine just two years after the z196 first introduced hybrid computing.


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