Hardware We'll have 25Gbit & 50Gbit ethernet network connectivity options soon !

eva2000 · Dec 9, 2015

The future is bright, as I came across this article which suggests instead of 1Gbit, 10Gbit and 40Gbit, 56Gbit, we'll soon also have 25Gbit and 50Gbit ethernet network connectivity Spirent Blogs - 25 Questions to Ask About 25G Ethernet

25G Ethernet has really stormed onto the network scene and may end up being the quickest to completion IEEE Ethernet standards effort to date. Here are 25 questions answered to help you sort it all out:

25G Ethernet? Do you mean 25G electrical lanes used for 100G Ethernet? Nope. This is 25G Ethernet. It has 25G chip-to-module electrical capability to thank for its existence, but this is a true 25G Ethernet "pipe." Think of it as 10G Ethernet sped up 2.5 times.

Where did this come from? I don't see it in the latest IEEE 802.3 standard? 25G Ethernet was initially an effort by a handful of data center industry heavyweights to move the technology forward. It is now also an IEEE task force under 802.3by.

There are two specifications? Do they interoperate? The specifications are not final but the industry has a strong desire to provide interoperability to the greatest degree possible. Also, it's likely that most devices will support both specifications.

Why 25G? Moving from 10G to 40G is a big jump and it turns out the incremental cost of 25G silicon over 10G is not that great.

I just moved my server interconnects to 10GE. Do I really need 25GE? Probably not for a while. Most of the early adopters will be Hyperscale Cloud providers and those companies that make their living in the cloud or that require extreme performance from their networks (e.g., high-frequency trading).

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other links

25 Gigabit Ethernet - Wikipedia, the free encyclopedia

Press Room | 25G Ethernet Consortium

25 GbE: A Big Deal That Will Arrive - Network Computing

25 GbE: A Big Deal That Will Arrive

Why all the hubbub about 25 Gigabit Ethernet? It allows the biggest jump in data center Ethernet performance for the smallest jump in price. That's why.

Companies like Google, Microsoft, Arista, and Mellanox are pushing the development of a 25 Gigabit Ethernet standard for top-of-tack server networking. Some may question the need for this technology, but they will soon see the benefits.

As Intel x86 CPUs improve in I/O and speed, 10 Gigabit Ethernet is no longer fast enough. For server to top-of-rack network connections to keep up, you would need to double the number of switches in each rack and use 10 GbE NICs. The hidden costs make this impractical.
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eva2000 · Dec 9, 2015

25Gbit ethernet would be just perfect for interconnectivity between 2 servers sporting Samsung 950Pro PCI-E NVMe SSDs The Samsung 950 Pro PCIe SSD Review (256GB and 512GB) or Intel 750 PCI-E NVMe SSDs Intel SSD 750 PCIe SSD Review: NVMe for the Client

512MB Samsung 950 Pro vs 1.2TB Intel 750
SSD 2015 Benchmarks - Compare Products on AnandTech

eva2000 · Feb 22, 2017

finally coming Intel XXV710 25GbE Network Adapters Launched

The company is also announcing new 25GbE networking adapters. Using SFP28 interfaces, the new Intel XXV710 networking adapters provide an easy upgrade path to higher-speed networking. Over the next few months we will see more 25/ 50/ 100GbE networking adapters as 10GbE becomes “free” as it is included in future platforms.

We saw Intel XXV710 support added to Intel support documents about three weeks ago. The Intel XXV710-da1 will be the single port adapter while the Intel XXV710-da2 will be the dual port version of the adapter. We are seeing a major trend to 25/ 50/ 100GbE networking so the company is following this industry trend.
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eva2000 · Apr 3, 2017

http://www.mellanox.com/blog/2016/03/25-is-the-new-10-50-is-the-new-40-100-is-the-new-amazing/

The latest buzz about Ethernet is that 25GbE is coming. Scratch that, it’s already here and THE hot topic in the Ethernet world, with multiple vendors sampling 25GbE wares and Mellanox already shipping an end-to-end solution with adapters, switches and cables that support 25, 50, and 100GbE speeds. Analysts predict 25GbE sales will ramp faster than any previous Ethernet speed.
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Performance
First, servers are getting faster. A mid-range-end x86 server can easily drive 20Gb/s of network throughput, while high-end servers can push 40, 50, or even 80Gb/s.

Second, storage is getting faster– NVMe SSDs today support 3GB/s (24Gb/s) of sequential read throughput, each! Vendors are sampling NVMe SSDs that support over 4GB/s (32Gb/s). A recent Mellanox demo with Microsoft Windows Storage Spaces showed one server with three NVMe SSDs could sustain 95Gb/s of throughput over a Mellanox 100GbE link using the Windows SMB Direct protocol. (See the Windows 100GbE demo on the Mellanox Microsoft solutions page.)

Third—here’s the other Oscars tie-in—more movies and TV shows are being shot and edited using 4K (3840×2160 or 4096×2160) resolution. Uncompressed 4K video needs 12 to 26 Gb/s of bandwidth per stream (depending on color depth) to capture, edit, and render, so both 10GbE and 8Gb Fibre Channel are too slow. Some studios are already testing 6K and 8K video and expect 8K resolution video will be commonplace by 2020.
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Cost
Obviously, if higher bandwidth didn’t cost more, everyone would use it, but cost matters too. Many mid-range application servers and clients today need more than 10Gb/s but less than 25Gb/s.

But why not just use 2x10GbE or 4x10GbE? Because it’s less expensive to use 25GbE, which provides 2.5x more bandwidth over the same number of wires and switch ports but costs about 1.5x more per NIC port than 10GbE. This gives 25GbE a 40% lower cost/bandwidth than 10GbE. Analysts forecast 25GbE will reach the same price per port as 10GbE in just 3 years, by 2019, giving 25GbE an even better cost/bandwidth advantage.
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eva2000 · Apr 8, 2017

Cavium 25Gbit and 100Gbit adapters New Cavium FastLinQ 45000 25GbE and 100GbE Adapters with RDMA and DPDK Support

The new Cavium FastLinQ 45000 series 25GbE and 100GbE adapters are targeted at the emerging networking standards set to have a break-through year in 2017.
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inthecloudblog · May 30, 2017

Could a box boot without it's own drives but from a San via something like a 10gigs SFP?
It's somehow off topic but SFP can provide 10 gigs and can be had via eBay for like 40 bucks .

eva2000 · May 30, 2017

Not sure but I know servers can have small 16-32GB boot devices (forgot the name)

inthecloudblog · May 30, 2017

eva2000 said: ↑

Not sure but I know servers can have small 16-32GB boot devices (forgot the name)
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I'm aware of pxe boot but that would only load or something like that the OS into the server (?)

eva2000 · May 30, 2017

ah found what I was referring to SATA DOM devices http://www.supermicro.com/products/nfo/SATADOM.cfm

The Supermicro SATA DOM (Disk on Module), the SuperDOM, is a small SATA3 (6Gb/s) flash memory module designed to be conveniently inserted into a serverboard SATA connector to provide high performance solid state storage capacity that simulates a hard disk drive (HDD). Supermicro SATA DOMs are extremely reliable without any moving parts like standard HDDs and are smaller in size and lighter in weight with greatly improved performance, latency and power consumption (~ 1W-2W per SATA DOM vs. 6W-7W for an HDD).

The Supermicro SuperDOM operates up to 2x faster than other SATA DOM products in the industry. Due to its optimized design the Supermicro SuperDOM does not require a 5V power cable as do other SATA DOM products on the market, thus improving performance and reliability. However, it is still backward compatible with server boards requiring this 5V power cable. The Supermicro SuperDOM is available in 128GB, 64GB, 32GB, and 16GB capacities and supports all Supermicro SuperServer® products and solutions.

The Supermicro SuperDOM is designed for use as a boot drive, backup recovery device, license drive, OS installation device (replacing CD/DVD-ROMs), embedded system storage element (to be deployed into very harsh environments where mechanical hard disk drives would fail), or in a thin client due to its small size and power requirements. The Supermicro SuperDOM can be ordered as an integrated unit with all Supermicro SuperServer® systems to create additional customer value.
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inthecloudblog · May 30, 2017

I was aware of such device but I appreciate your time to look for it.
I'm still wanting to avoid using (this is not something I will be doing now but in a couple of years hopefully) any drives in each box but make use of a dual port sfp to hook up to a San

eva2000 · May 30, 2017

inthecloudblog said: ↑

I was aware of such device but I appreciate your time to look for it.
I'm still wanting to avoid using (this is not something I will be doing now but in a couple of years hopefully) any drives in each box but make use of a dual port sfp to hook up to a San
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yeah guess more research

eva2000 · Jun 29, 2017

one day.. one day..

Cavium FastLinQ 41000 Series 10GbE and 25GbE Adapters Launched

The new Cavium FastLinQ 41000 series is being launched aimed at general purpose compute and storage server. The FastLinQ 41000 series supports traditional 10GbE but also SFP28 25GbE networking. One of the unique features of the Cavium FastLinQ 41000 series is its ability to support both RoCE and iWARP RDMA networking. That is a big deal. Some higher-end fabrics we are about to see explode only support one or another. For example, Intel is pushing Omni-Path which uses iWARP RDMA. If you are looking for a 25GbE solution, this is a new entry in the market.
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Cavium Unveils Industry's Most Advanced 10/25/40/50Gbps Ethernet NIC Family

SAN JOSE, Calif., June 27, 2017 /PRNewswire/ -- Today, Cavium, Inc. (CAVM), a leading provider of semiconductor products that enable secure and intelligent processing for enterprise and cloud data centers, announced the FastLinQ 41000 Series, its low power, second generation of 10/25/40/50GbE NIC and the industry's only NIC adapter with Universal RDMA, making it the industry's most advanced 10/25/40/50Gbps Ethernet NIC Family. Leveraging over a decade of networking technology expertise and industry leadership, the cost and power optimized FastLinQ 41000 Series deliver advanced networking for cloud and telco architectures. FastLinQ 41000 Series NICs are available immediately from Cavium and will soon be available from leading Tier-1 OEMs and ODMs worldwide in standard, mezzanine, LOM and OCP form factors.
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