Tag Archives: ethernet

RoCE in the Data Center

Today’s data centers demand that the underlying interconnect provide the utmost bandwidth and extremely low latency. While high bandwidth is important, it is not worth much without low latency. Moving large amounts of data through a network can be achieved with TCP/IP, but only RDMA can produce the low latency that avoids costly transmission delays.

The speedy transfer of data is critical to it being used efficiently. Interconnect based on Remote Direct Memory Access (RDMA) offers the ideal option for boosting data center efficiency, reducing overall complexity, and increasing data delivery performance. Mellanox RDMA enables sub-microsecond latency and up to 56Gb/s bandwidth, translating to screamingly fast application performance, better storage and data center utilization, and simplified network management.

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HP updates server, storage and networking line-ups

 

HP updated its enterprise hardware portfolio with the most notable addition being networking devices that combined wired and wireless infrastructure to better manage bring-your-own-device policies.One of those  highlights is the Mellanox SX1018 HP Ethernet switch, which lowers port latency and improves downlinks.

 

The Mellanox SX1018HP Ethernet Switch is the highest-performing Ethernet fabric solution in a blade switch form factor. It delivers up to 1.36Tb/s of non-blocking throughput perfect for High-Performance Computing, High Frequency Trading and Enterprise Data Center- applications.

 

Utilizing the latest Mellanox SwitchX ASIC technology, the SX1018HP is an ultra-low latency switch that is ideally suited as an access switch providing Infiniband like performance with sixteen 10Gb/40Gb server side downlinks and eighteen 40Gb QSFP+ uplinks to the core with port to port latency as low as 230nS.

 

The Mellanox SX1018HP Ethernet Switch has a rich set of Layer 2 networking and security features and supports faster application performance and enhanced server CPU utilization with RDMA over Converged Ethernet (RoCE), making this switch the perfect solution for any high performance Ethernet network.

 

Mellanox SX1018HP Ethernet Switch

 

HP is the first to provide 40Gb downlinks to each blade server enabling InfiniBand-like performance in an Ethernet blade switch. Another industry first, the low-latency HP SX1018 Ethernet Switch provides the lowest port to port latency of any blade switch, more than four times faster than previous switches

 

When combined with the space, power and cooling benefits of blade servers, the Mellanox SX1018HP Ethernet Blade Switch provides the perfect network interface for Financial applications and high performance clusters.

 

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Why I left HP after 19 years to join ProfitBricks

On 02.12.13, In Cloud Computing, by

Pete Johnson, new Platform Evangelist

Woz once said, “I thought I’d be an HPer for life.” While I don’t usually claim to have a whole lot in common with the man who designed the first computer I ever saw (an Apple II, summer ’78), in this instance it’s true. As it turns out, we were both wrong.

Pete Johnson, new Platform Evangelist for ProfitBricks

I stayed at HP as long as I did for lots of reasons. Business model diversity is one:  over the last two decades, I was lucky enough to be a front line coder, a tech lead, a project manager, and an enterprise architect while working on web sites for enterprise support, consumer ecommerce sales, enterprise online sales, all forms of marketing, and even post-sales printing press supplies reordering.   Most recently I was employee #37 for HP’s new public cloud offering where I performed a lot of roles including project management of web development teams, customer facing demonstrations at trade shows, and sales pitches for Fortune 500 CIOs.  But I also remained at HP because of the culture and values that came straight from Bill Hewlett and Dave Packard, which my early mentors instilled in me. You can still find those values there today if you look hard enough, and if anybody gets that, Meg Whitman does.

Why leave HP for ProfitBricks then?

So if I still have such a rosy view of HP, despite recent bumpiness, why did I leave to become the Platform Evangelist for ProfitBricks?

Three reasons:

  1. InfiniBand
  2. InfiniBand
  3. InfiniBand

If you are anything like the sample of computer industry veterans I told about my move last week, you just said, “What the heck is InfiniBand?” Let me explain what it is and why it is poised to fundamentally change the cloud computing.

Ethernet is the dominant network technology used in data centers today. Originally created during the Carter administration, it uses a hierarchical structure of LAN segments, which ultimately means that packets have exactly one path to traverse when moving from point A to point B anywhere in the network. InfiniBand, which is a popular 21st century technology in the supercomputing and high-performance computing (HPC) communities, uses a grid or mesh system that gives packets multiple paths from point A to point B. This key difference, among other nuances, gives InfiniBand a top speed of 80 Gbits/sec, resulting in a speed that is 80x faster than Amazon’s AWS 1Gbit/sec standard Ethernet connections.

What’s the big deal about InfiniBand?

“So what?” you may be thinking. “A faster cloud network is nice, but it doesn’t seem like THAT big a deal.”

Actually, it is a VERY big deal when you stop and think about how a cloud computing provider can take advantage of a network like this.

As founder and CMO Andreas Gauger put it to me during the interview process, virtualization is a game of Tetris in which you are trying to fit various sizes of Virtual Machines on top of physical hardware to maximize utilization. This is particularly critical for a public cloud provider. With InfiniBand, Profit Bricks can rearrange the pieces, and at 80 Gbits/sec, our hyper-visor can move a VM from one physical machine to another without the VM ever knowing. This helps us maximize the physical hardware and keep prices competitive, but it also means two other things for our customers:

  • You can provision any combination of CPU cores and RAM you want, up to and including the size of the full physical hardware we use
  • You can change the number of CPU cores or amount of RAM on-the-fly, live, without rebooting the VM

In a world where other public cloud providers force you into cookie cutter VM sizes in an attempt to simplify the game of Tetris for themselves, the first feature is obviously differentiating. But when most people hear the second one, their reaction is that it can’t possibly be true — it must be a lie. You can’t change virtual hardware on a VM without rebooting it, can you?

No way you can change CPU or RAM without rebooting a VM!

Do you suppose I’d check that out before leaving the only employer I’ve ever known in my adult life?

I spun up a VM, installed Apache, launched a load test from my desktop against the web server I just created, changed both the CPU Cores and RAM on the server instance, confirmed the change at the VM command line, and allowed the load test to end.  You know what the load test log showed?

Number of errors: 0.

The Apache web server never went down, despite the virtual hardware change, and handled HTTP requests every 40 milliseconds. I never even lost my remote login session. Whoa.

But wait, there’s more (and more to come)

Throw in the fact that the ProfitBricks block storage platform takes advantage of InfiBand to not only provide RAID 10 redundancy, but RAID 10 mirrored across two availability zones, and I was completely sold.  I realized that ProfitBricks founder, CTO, and CEO Achim Weiss took the data center efficiency knowledge that gave 1&1 a tremendous price advantage and combined it with supercomputing technology to create a cloud computing game-changer that his engineering team is just beginning to tap into. I can’t wait to see what they do with object storage, databases, and everything else that you’d expect from a fully IaaS offering. I had to be a part of that.

Simply put: ProfitBricks uses InfiniBand to enable Cloud Computing 2.0.

And that’s why, after 19 years, I left HP.

RDMA Interconnects for Storage: Fast, Efficient Data Delivery

Written By: Erin Filliater, Enterprise Market Development Manager

We all know that we live in a world of data, data and more data. In fact, IDC predicts that in 2015, the amount of data created and replicated will reach nearly 8 Zettabytes. With all of this data stored in external storage systems, the way data is transferred from storage to a server or application becomes critical to effectively utilizing that information. Couple this with today’s shrinking IT budgets and “do more with less” mindsets, and you have a real challenge on your hands. So, what’s a data center storage administrator to do?

Remote Direct Memory Access (RDMA) based interconnects offer an ideal option for boosting data center efficiency, reducing overall complexity and increasing data delivery performance. Available over InfiniBand and Ethernet, with RDMA over Converged Ethernet (RoCE), RDMA allows data to be transferred from storage to server without passing the data through the CPU and main memory path of TCP/IP Ethernet. Greater CPU and overall system efficiencies are attained because the storage and servers’ compute power is used for just that—computing—instead of processing network traffic. Bandwidth and latency are also of interest: both InfiniBand and RoCE feature microsecond transfer latencies, and bandwidths up to 56Gb/s. Plus, both can be effectively used for data center interconnect consolidation. This translates to screamingly fast application performance, better storage and data center utilization and simplified network management.

On a performance basis, RDMA based interconnects are actually more economical than other alternatives, both in initial cost and in operational expenses. Additionally, because RDMA interconnects are available with such high bandwidths, fewer cards and switch ports are needed to achieve the same storage throughput. This enables savings in server PCIe slots and data center floor space, as well as overall power consumption. It’s an actual solution for the “do more with less” mantra.

So, the next time your application performance isn’t making the grade, rather than simply adding more CPUs, storage and resources, maybe it’s time to consider a more efficient data transfer path.

Find out more: http://www.mellanox.com/page/storage

Mellanox InfiniBand and Ethernet Switches Receive IPv6 Certification

I am proud to announce that Mellanox’s SwitchX® line of InfiniBand and Ethernet switches have received a gold certification for Internet Protocol v6 (IPv6) by the Internet Protocol Forum.  Adding IPv6 support to our SwitchX series is another milestone for Mellanox’s InfiniBand and Ethernet interconnect solutions, and demonstrates our commitment to producing quality, interoperable InfiniBand and Ethernet products optimized for the latest Internet Protocols.

SX1036 - 36-port 40GbE Switch

Mellanox’s drive to satisfy strong requirements has led to receiving the gold certification as part of the IPv6 Ready Logo Program which is a conformance and interoperability testing program designed to increase user confidence by demonstrating that IPv6 is the future of network architecture.

We at Mellanox feel that as global technology adoption rates increase, there is a greater need for larger networks and subsequently more IP addresses. Just as background, Internet Protocol version 4 (IPv4), still in dominant use, is now reaching the limit of its capacity. The next generation of IP – IPv6 – is designed to provide a vastly expanded address space and quadruples the number of network address bits from 32 bits in IPv4 to 128 bits, providing more than enough globally unique IP addresses for every networked device on the planet.

Regards,

Amit Katz

Director, Product Management