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What are data centers? How they work and how they are changing in size and scope
A data center is the physical facility providing the compute power to run applications, the storage capabilities to process data, and the networking to connect employees with the resources needed to do their jobs.Experts have been predicting that the on-premises data center will be replaced by cloud-based alternatives, but many organizations have concluded that they will always have applications that need to live on-premises. Rather than dying, the data center is evolving.It is becoming more distributed, with edge data centers springing up to process IoT data. It is being modernized to operate more efficiently through technologies like virtualization and containers. It is adding cloud-like features such as self-service. And the on-prem data center is integrating with cloud resources in a hybrid model.To read this article in full, please click here
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Microsoft extends Azure server lifetimes by 50%
Cloud service providers have been on a hardware spending spree for years, deploying hundreds of thousands of servers as they build out data centers the size of football stadiums as fast as they can.But the party may be ending. On its recent earnings call with financial analysts, Microsoft announced plans to extend the lifespan of its cloud servers from four years to six years. [ Get regularly scheduled insights by signing up for Network World newsletters. ] CFO Amy Hood said the reason for the longer deployments is due to "increased efficiencies in how we operate our server and network equipment as well as advances in technology have resulted in lives extending beyond historical accounting useful lives."To read this article in full, please click here
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24 ways to check the status of files using if commands on Linux
There are a lot more ways to check files using if commands than many of us realize. Although this information is included in the bash man page, that man page has thousands of lines and you could easily find yourself paging down more than 100 times to reach it.This post, provides information on each option and examples for some of the most useful ones. [ Get regularly scheduled insights by signing up for Network World newsletters. ] Checking if a file exists One of the most commonly used tests for checking on files is if [ -f filename ]. This test will result in true if the file exists and is a regular file—not a directory or a symbolic link. You might use it like this:To read this article in full, please click here
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What is CXL, and why should you care?
If you purchase a server in the next few months featuring Intel’s Sapphire Rapids generation of Xeon Scalable processor or AMD’s Genoa generation of Epyc processors, they will come with a notable new function called Compute Express Link (CXL)—an open interconnect standard you may find useful, especially in future iterations.CXL is supported by pretty much every hardware vendor and built on top of PCI Express for coherent memory access between a CPU and a device, such as a hardware accelerator, or a CPU and memory.PCIe is meant for point-to-point communications such as SSD to memory, but CXL will eventually support one-to-many communication by transmitting over coherent protocols. So far, CXL is capable of simple point-to-point communication only.To read this article in full, please click here
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How to find files on Linux and make it easy to find them again
The cd command makes it easy to switch to another directory on Liniux, but only if you know where you’re heading. In this post, I discuss a couple of tricks for moving between known locations and provide a script for finding and “remembering” files or locations that you might want to reuse.One of the easiest things to do with the cd command is return to your home directory regardless of where you are sitting in the file system at the moment. Just type cd by itself, and you’ll be back in your home directory. Typing cd ~ will do the same thing, though adding the tilde won’t get you there any faster.To read this article in full, please click here
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Cisco backlog still looms
Like many of its competitors, Cisco’s quarterly and year-end financial results show the good and bad of the current economy—a record of new product orders alongside record backlogged orders.Cisco reported that for the period ending July 30, its quarterly revenue was basically flat year-over-year at $13.1 billion, but revenue for the 2022 fiscal year was up three percent to $51.6 billion. [ Get regularly scheduled insights by signing up for Network World newsletters. ] “Full year product orders and backlog are both at record highs,” Cisco’s CEO Chuck Robbins said in a written statement before the company’s quarterly and year-end Wall Street phone briefing.To read this article in full, please click here
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7 ways to fight network tool sprawl
Tool sprawl is a daunting problem that plagues enterprise IT everywhere you look, from data center operations to cybersecurity to network reliability to application performance.Tool sprawl occurs when organizations acquire licenses (or not, in the case of open source) for multiple tools that tackle related, but not completely overlapping, issues. Layered security is the most obvious example of this, but the problem bedevils networking, DevOps, cloud teams, etc.To read this article in full, please click here
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Covid-19 affects IT pros at work
The Covid-19 virus has already forced cancellation of major technology conferences, Mobile World Congress being the first and most notable, and others could follow, but there are more immediate effects on IT professionals.The availability of servers is projected to be reduced due to scaled back or halted production in China, where efforts to contain the coronavirus include closing factories. The center of the outbreak, Wuhan, is also the center of display production.10 of the world's fastest supercomputers Processor manufacturer Nvidia acknowledges the effects of the virus on its production and predicts a $100 million revenue hit next quarter because of it.To read this article in full, please click here
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COVID-19 affects IT pros at work
The COVID-19 virus has already forced cancellation of major technology conferences, Mobile World Congress being the first and most notable, and others could follow, but there are more immediate effects on IT professionals.The availability of servers is projected to be reduced due to scaled back or halted production in China, where efforts to contain the coronavirus include closing factories. The center of the outbreak, Wuhan, is also the center of display production.10 of the world's fastest supercomputers Processor manufacturer Nvidia acknowledges the effects of the virus on its production and predicts a $100 million revenue hit next quarter because of it.To read this article in full, please click here
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5G holds promise for enterprises, but what’s real?
5G technology can offer high bandwidth, low-latency wireless connections, but how available is it, and what types of service does it support?The acknowledged global leader in 5G tech is Huawei is caught in a political attack from the U.S. that calls for banning the use of its gear in U.S. service-provider networks. How will that affect rollouts?What are the characteristics of the frequency bands 5G can emplo,y and how can that affect the business applications it’s best suited for.In this video “Making the move to 5G” technology consultant Jack Gold addresses these questions and more.To read this article in full, please click here
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What’s big in IT tech for the coming year
As the year winds down it's a good time to take a quick look ahead at what the new year might bring in order to be better prepared to make smart decisions.Nowhere is that more important than in IT, where the choices enterprise leaders make will have implications not only for themselves and their customers, but also for the overall economy, which depends more and more on corporate networks delivering business-critical services reliably.Here, we take a look how some of the most critical technologies will fare in 2020.What’s hot for Cisco in 2020 IDG Cisco is expected to continue its cloud, security, and SD-WANefforts in 2020, but there are hurdles to overcome. “Overall, I think it’s clear that Cisco needs to get into the cloud in a more effective way," said analyst Tom Nolle, president of CIMI Corp. "I think their recent reorg shows they understand that. Cloud Interconnect is a sideshow. What’s needed is infrastructure-independent development and deployment, which would relegate Cloud Interconnect to nothing but a network gateway.” (Read more.)To read this article in full, please click here
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What’s big in IT tech for the coming year
As the year winds down it's a good time to take a quick look ahead at what the new year might bring in order to be better prepared to make smart decisions.Nowhere is that more important than in IT, where the choices enterprise leaders make will have implications not only for themselves and their customers, but also for the overall economy, which depends more and more on corporate networks delivering business-critical services reliably.Here, we take a look how some of the most critical technologies will fare in 2020.What’s hot for Cisco in 2020 IDG Cisco is expected to continue its cloud, security, and SD-WANefforts in 2020, but there are hurdles to overcome. “Overall, I think it’s clear that Cisco needs to get into the cloud in a more effective way," said analyst Tom Nolle, president of CIMI Corp. "I think their recent reorg shows they understand that. Cloud Interconnect is a sideshow. What’s needed is infrastructure-independent development and deployment, which would relegate Cloud Interconnect to nothing but a network gateway.” (Read more.)To read this article in full, please click here