It’s important to back up your databases, but it’s even more important to be able to restore it, so once you’ve identified how you’re going to back it up, make sure you test the different recovery scenarios.

Broadly speaking, there are two database types considered here, traditional and modern, and  recovery is different for each. A traditional database in this context is a database that runs in a single server or virtual machine that you manage, and a modern database might run across many nodes or it might even be serverless, where you have no access to the underlying infrastructure.

Recovering traditional databases

Restoring a traditional database is straightforward as long as you have practiced how to handle  different things that could go wrong. You don’t want to test your backup system for the first time during an actual database outage.

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For online auction powerhouse eBay, customer service is everything. Or, as Parantap Lahiri, vice president of network and data center engineering, puts it, “We want to make the network more like air or water, so our people don’t have to worry about network resources when creating magical services for our users.”

The demands on the eBay infrastructure are staggering: 1.8 billion active listings; 133 million active buyers. It’s main landing page gets 250 million visits per day. Unlike a static storefront site like Amazon, an eBay auction can entail multiple bidders from all over the world competing against each other as the clock ticks down to the end of the auction. And the eBay platform supports direct communication between sellers and buyers, with offers and counteroffers flying back and forth.

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By Gabriel Gomane, Senior Product Marketing Manager at HPE Aruba Networking.

Nowadays, a secure SD-WAN integrates advanced SD-WAN features with built-in next-generation firewall capabilities such as Deep Packet Inspection (DPI), IDS/IPS, and micro-segmentation, allowing organizations to replace legacy branch firewalls. Even though security features in secure SD-WANs are often equivalent to legacy firewalls, a secure SD-WAN offers additional benefits that a firewall cannot provide, accelerating the retirement of legacy firewalls in branches.

The benefits of replacing a branch firewall with a secure SD-WAN include:

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The reliability of services delivered by ISPs, cloud providers and conferencing services (a.k.a. unified communications-as-a-service (UCaaS)) is an indication of how well served businesses are via the internet.

ThousandEyes is monitoring how these providers are handling the performance challenges they face. It will provide Network World a roundup of interesting events of the week in the delivery of these services, and Network World will provide a summary here. Stop back next week for another update, and see more details here.

As more IT organizations apply artificial intelligence (AI), machine learning (ML), and so-called AIOps technology to network management, network data is critical to success. AI/ML technology requires more and more data to learn individual networks, derive insights, and offer recommendations. Unfortunately, many organizations encounter problems when trying to feed network data to these AI tools.

In other words, network teams need to modernize their approach to network data before they embrace AI technology.

Enterprise Management Associates recently surveyed 250 IT professionals about their experience with AI/ML-driven network management solutions for a report, “AI-Driven Networks: Leveling up Network Management.” It found that data problems are the number-two technical challenge they encounter when applying AI/ML to network management. Only network complexity is a bigger technical issue.

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Google Cloud announced a new supercomputer virtual-machine series aimed at rapidly training large AI models.

Unveiled at the Google I/O conference, the new A3 supercomputer VMs are purpose-built to handle the considerable resource demands of a large language model (LLM). 

“A3 GPU VMs were purpose-built to deliver the highest-performance training for today’s ML workloads, complete with modern CPU, improved host memory, next-generation Nvidia GPUs and major network upgrades,” the company said in a statement.

The instances are powered by eight Nvidia H100 GPUs, Nvidia’s newest GPU that just begin shipping earlier this month, as well as Intel’s 4th Generation Xeon Scalable processors, 2TB of host memory and 3.6 TBs bisectional bandwidth between the eight GPUs via Nvidia’s NVSwitch and NVLink 4.0 interconnects.

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Cisco is more tightly integrating its network- and application-intelligence tools in an effort to help customers quickly diagnose and remediate performance problems.

An upgrade to Cisco's Digital Experience Monitoring (DEM) platform melds the vendor’s AppDynamics application observability capabilities and ThousandEyes network intelligence with a bi-directional, OpenTelemetry-based integration package. (Read more about how to shop for network observability tools)

The goal with DEM is to get business, infrastructure, networking, security operations, and DevSecOps teams working together more effectively to find the root cause of a problem and quickly address the issue, said Carlos Pereira, Cisco Fellow and chief architect in its Strategy, Incubation & Applications group. 

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Branch offices play a critical role in the success of a business, contributing significantly to its bottom line. Despite that, branch offices often do not have all the pieces of the puzzle in place for robust performance and threat management in these remote locations.

This can happen due to shortfalls in branch office IT management, which can include:

• No full-time IT staff on site
• Reduced visibility into network and service performance compared to headquarters or data center locations
• Limited or no visibility into traffic that doesn’t come back to the data center
• Difficulty in understanding the remote end-user experience and quantifying the impact of service degradations

Negating these shortfalls requires a more comprehensive approach to remote management encompassing the following areas:

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The grep command makes it easy to find strings in text files on Linux systems, but that's just a start. It can be used to search through these files for multiple strings or regular expressions at the same time. It can also ignore case when needed, and it can count the lines in the resulting output for you. This post shows how to use grep in all these ways.

Basic grep

The simplest grep command looks like the one shown below. This "find string in file" command will show all the lines in the file that contain the string, even when that string is only part of a longer one.

$ grep word story The wording suggests there was more to the story than anyone wanted to admit. The sword had been left behind the shed. It was several days before it was 

Finding multiple strings

There are a number of ways to search for a group of strings in a single command. In the command below, the '|' character serves as an "or" function. The command will display any lines in the file that contain the word "xray", the word "tape" or both.

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A group of about a dozen vendors announced this week that a test program for 5G network slicing had achieved 70% gains in the time required to programmatically create a network slice, marking a major step forward in the development of private 5G for enterprise users.

A network “slice,” as it’s called, is essentially a logically distinct subnetwork in a 5G deployment that can be used for a variety of purposes to maximize bandwidth use and provide on-demand 5G services to users. The basic idea is that automation in the 5G core can apply a layer of virtualization to wireless networks, letting a service provider “slice” off parts of its available spectrum and provide them to a customer as a discrete network.

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US networking giant Cisco Systems announced a manufacturing plant in India in an attempt to broaden its global supply chain.

The factory is expected to be operational in 12 months and will generate $1 billion in total revenue including exports, said Cisco Chairman and Chief Executive Chuck Robbins.

“We are announcing strategic investments in Indian manufacturing capabilities as the next step in delivering cutting-edge technologies to our customers in India and across the globe,” Robbins said in a press conference in New Delhi on Wednesday. “India is a focal point of innovation and business for Cisco, and we remain deeply committed to our partnerships here.”

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Extreme Networks has unveiled a cloud-based network management package called ExtremeCloud Edge that lets customers administer their growing edge-based resources regardless of their location.

The company also expanded its portfolio of Universal switches with new core and aggregation boxes and released a new power-efficient raybet51 access point.

The ExtremeCloud Edge package unifies the company’s core ExtremeCloud applications, which include the ExtremeCloud IQ wireless and wired network-management offering, CoPilot AI-based management tool, and SD-WAN. With an integrated package, customers can deploy a variety of management and networking features, from analytics and AI support to edge networks, all via a single cloud-based console.

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Esports is a billion-dollar market that is projected to grow to $5.74 billion by 2030, drawing in hundreds of millions of fans.

So, there’s a lot at stake, and much of it is riding on how well the underlying technology performs. “For the most part, bugs occur within a vacuum and only affect solo gamers, or game streams where nothing is at stake except viewership,” writes SVG, a multi-platform gaming publication. “When a bug strikes during an esports tournament, however, a shoddy line of code can spiral into a million-dollar mistake.”

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Dell’s storage product lineup is set to receive a wide range of updates, including  devops integrations with the Ansible and Terraform tools, compliance with the latest US government security standards, zero trust readiness and more.

PowerStore, Dell’s flash-based storage array line, is receiving the lion’s share of the security updates, according to a Dell announcement on Wednesday. Dell said that PowerStore now boasts STIG hardening, meaning that it is compliant with the federal government’s stanadards for its own networks. PowerStore also received secure and immutable snapshot technology, which should make for more reliable and harder-to-compromise recoveries. Multifactor authentication, streamlined file resiliency (which adds more mounted snapshots per system) and direct management of file permissions from within PowerStore are also being added.

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The North American data center market is at near capacity, which means that raybet合法性 may not be able to get the space they need at the data center they want, or they may have to pay a premium for it.

Market researcher datacenterHawk, which helps companies search for colocation and cloud service providers, says that the North American data center market is facing record-high demand, although the rate of growth has slowed somewhat due to economic headwinds.

High demand and low inventory (available space) have resulted in a vacancy rate in major North American markets of just 2.88%, according to datacenterHawk's 1Q 2023 Data Center Market Recap. In the secondary markets, it’s 5%.

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Cisco is warning customers that an expired certificate bug in a number of its Viptela SD-WAN devices can take down the boxes and consequently their attached SD-WAN environments.

In a tweeted alert and a Tech Note Wednesday morning, Cisco said it is actively working to address a device failure problem that's impacting a number of Viptela SD-WAN platforms including the vEdge 100, 1000, 2000. It defined the problem as “an expired certificate affecting control plane connections, which eventually impacts data plane connections resulting in loss of service.”

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AT&T, Dell and VMware have partnered to create a multi-access edge computing (MEC) solution that includes private 5G wireless deployed on premises. The three vendors combined their experience in 5G communications and edge infrastructure to create an integrated 5G MEC solution – called AT&T MEC with Dell Apex – that’s designed to accelerate enterprise adoption of 5G technology.

AT&T provides network connectivity for the solution, while Dell delivers the hardware that AT&T MEC rides on and provides an “as-a-service” capability via Dell Apex Private Cloud. VMware's virtualization and multi-cloud enablement software comes loaded on the Dell Private Cloud VxRail HCI servers.

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Hybrid cloud integration provider Nutanix is set to release three new features for its multicloud platform, aimed at simplifying complex environments and making application management simpler for IT teams.

The first is Project Beacon, a centralization of the basic Nutanix Cloud Platform offering designed to deliver a unified experience for business applications across multiple public clouds. Where most PaaS services are tied to specific public clouds, according to the company, Project Beacon is designed to provide platform services for apps running different services wherever they might be, complete with Kubernetes integration.

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IBM reached a quantum-computing milestone in March with the first U.S. deployment of an on-site, private-sector, IBM-managed quantum computer. The IBM Quantum System One, installed at the Cleveland Clinic, is the world's first quantum computer to be specifically dedicated to healthcare research, with the goal of helping the Cleveland Clinic accelerate biomedical discoveries, according to IBM.

The announcement didn't surprise Scott Buchholz, global quantum computing lead at enterprise advisory firm Deloitte. "IBM is a leader in the race to build useful, scalable quantum computers," he says. "Their research teams have been working to build the software, hardware, and supplier ecosystem necessary to support the long-term development of these important technologies."

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5G (short for fifth generation) is an umbrella term that describes the collection of standards and technologies that define the current generation of wireless network connectivity. First rolled out in commercial applications in 2019, 5G promised a significant increase in network speeds and a decrease in latency compared to 4G LTE networks.

Initially, many operators offered 5G-branded services that mixed 4G and 5G technologies and in practice provided speeds closer to the former. But 5G has become near-universal in the U.S. and most developed countries, and just about any new cellular wireless device you purchase today will be 5G-enabled.

In the public mind, 5G is mostly associated with cell phones, and those remain by far its most widespread use case. But 5G is also the first wireless technology that telecoms are using to compete with cable or fiber for fixed home internet use. It also has a number of industrial uses. 5G does all this safely, and anything you might read about the supposed dangers of 5G is simply false.

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Cisco continues to invest in its customer experience (CX) group, which provides product lifecycle management and aims to ensure that customers get what they want out of their technology purchases.

Alistair Wildman, senior vice president of Cisco Global Customer Experience, says his team of 20,000 is primed to make sure enterprises are effectively choosing, implementing, and using the technologies they purchase to achieve their business goals. Cisco CX offers a suite of services to help customers optimize their network infrastructure, security, collaboration, cloud and data center operations – from planning and design to implementation and maintenance.

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The other day I was talking to an analyst about trends in networking and how important the zero-trust security model has become. With zero trust, a user or device is only trusted after confirming their identity or status. It moves security away from implied trust that is based on network location and evaluates trust on a per-transaction basis.

Many organizations are incorporating zero-trust strategies into their architectures, replacing implicit trust for network edges and remote users with consistent convergence of networking and security. This change in mindset has led to specific projects that involve zero trust, such as zero-trust network access (ZTNA) initiatives.

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There are a number of ways to view files on Linux, because, after all, files on Linux are multifaceted. They have names, they have content, they have access permissions, and they have dates and times associated with their "birth" (when they were initially added to the file system) as well as when they were last changed and last accessed. This post covers the commands that allow you to view all these details.

Listing files

The easiest and most obvious way to list files is with the ls command. By default, ls will list files in the current directory in name order, but you can reverse that by adding the -r option.

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Qualcomm is acquiring fabless Israel-based automobile chip maker Autotalks in a bid to add safety features to its Snapdragon Digital Chassis product family and strengthen its semiconductor product portfolio for the booming car-to-cloud communications and autonomous-driving market.

The Snapdragon Digital Chassis product family is designed to provide assisted and autonomous driving technology, as well as in-car infotainment and cloud connectivity.

Autotalks has been working on vehicle-to-everything (V2X) communications since 2009, Qualcomm noted in its  announcement of the deal on Monday. The Israel-based company provides automotive dual-mode global V2X technology compatible with multiple V2X standards that are designed to reduce collisions and improve mobility, Qualcom said.

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Ongoing US diplomatic efforts to keep Chinese-made equipment out of as many networks as possible appear to be bearing fruit, as Germany eyes a ban on Huawei and ZTE 5G equipment, which would follow in the footsteps of several other European nations.

Sweden, Norway, and the UK have already implemented bans on Chinese-made equipment, following the US line that such hardware poses a national security threat thanks Huawei and ZTE’s close ties to the government in Beijing.

News of a prospective German ban was originally broken in March by German newspaper Die Zeit, citing government sources.

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Microsoft is reportedly partnering with AMD to help the chip maker develop advanced processors that support artificial AI workloads. Microsoft’s increased demand for chips that can support AI applications is due to the number of AI-based products and services it has recently released in collaboration with OpenAI, creator of ChatGPT.

As a result, Microsoft has decided to collaborate with AMD to provide an alternative to Nvidia, which dominates the market for graphics processing units (GPUs) used for AI applications, according to a Bloomberg report.

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Broadcom said it will spend $2 billion a year to accelerate research and development for VMware products and services.

In making the investment assurance, Broadcom CEO Hock Tan wrote in a blog post: “By extending our multi-cloud strategy, we will invest in extending VMware’s software stack to run and manage workloads across private and public clouds, which means any enterprise can run application workloads easily, securely, and seamlessly on-prem, or in any cloud platform they prefer.”

“If companies can run VMware as a private cloud on-prem, they should be able to take their same application workloads to the public cloud without needing to re-engineer that application or worry about being locked into the public cloud providers that they choose,” Tan stated.

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