Posts Tagged ‘Network Administration’

Why is Remote Power Management Such an Important Capability for Modern Networks?

Monday, September 26th, 2011

When a vital network element crashes or hangs, in many cases the problem can be solved by a simple power reboot. But sometimes, even “simple” isn’t all that simple; especially when the network device in question is located at a distant network equipment site. In the case of remote network devices, rather than walking down the hall to flip a power switch Off and then On again, a power reboot usually requires an expensive, time-consuming service call to the remote equipment site, and an unwelcome delay while network users wait for the service team to travel to the remote site to reboot the troublesome network element and restore network communication.

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How Out of Band Management Can Help Minimize Network Down-Time

Monday, January 24th, 2011

These days, it’s hard to imagine any kind of large business that doesn’t rely on network communication to one extent or another. In fact, most companies are so reliant on their networks, that when the network crashes or is unavailable, the whole company comes to a grinding halt; orders can’t be processed, stock can’t be checked, financial data can’t be accessed and even simple-yet-vital tools such as email communication suddenly vanish. That’s why it’s absolutely imperative that the network be kept running 24 hours a day, seven days a week and 365 days a year. This can prove to be a challenging task for network administrators, but when your network infrastructure includes an out of band management solution with event alarms and alarm notification capabilities, it’s a whole lot less of a challenge.

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How Will Cloud Computing Change the IT Pro’s Job in 2011 and Beyond?

Wednesday, January 12th, 2011

I don’t know if things will change all that much in 2011, but the author does seem to cover the “and beyond” part of the headline fairly well.

I don’t typically like perform prognostications but it is a new year and I have been thinking about what it means for our industry. Here’s what I see 2011 and beyond looking like for the IT pro in light of the impetus towards cloud based services.

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Seven Overlooked Network Security Threats for 2011

Monday, January 3rd, 2011

Just when you thought your network was totally secure …

No one working in network security can complain that the issue has been ignored by the press. Between Stuxnet, WikiLeaks server attacks and counterattacks, and the steady march of security updates from Microsoft and Adobe, the topic is being discussed everywhere. IT workers who have discovered that consolidation, off-shoring, and cloud computing have reduced job opportunities may be tempted to take heart in comments such as Tom Silver’s (Sr. VP for Dice.com) claim that “there is not a single job position within security that is not in demand today.”This and similar pronouncements by others paint a rosy picture of bottomless security staff funding, pleasant games of network attack chess, and a bevy of state-of-the-art security gadgets to address threats. Maybe.

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The Most Often Requested Features for a Console Server

Thursday, November 4th, 2010

When shopping for a console server, network administrators usually ask questions about the number of available ports, the type of port interface and whether or not the console server supports telnet, out of band access and dial-up access. Although most console servers offer pretty much the same options for all of these features, there are also other features that set some console server products apart from the others.

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How to Optimize VM Memory and Processor Performance

Wednesday, October 27th, 2010

Here’s how to get the most out of your VM memory …

The highly scalable server architectures available to modern datacenters have achieved unprecedented memory and CPU densities. As a result, VM density has also increased. ┬áSome of the techniques used to build highly scalable servers can create an unintended performance problem for VMs. One common problem is NUMA node balancing. In this post, I’ll try to provide a high level overview of the problem and some of the ways to address it. Not all hypervisors deal with NUMA node issues in the same way so I have kept this post hypervisor neutral. Specifics for your virtual environment are best addressed with your vendor.

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Out of Band Management – The Fastest Way to Correct Problems with Remote Network Devices

Tuesday, October 12th, 2010

Computer networks offer an extremely practical and convenient means to allow many different users to access commonly used functions such as email, inventory programs, file servers and etc. But unfortunately, a network is only as strong as it’s weakest link. This means that if a firewall or a switch crashes, then all across your organization, users are suddenly locked out of the network functions that they depend upon in order to complete day-to-day tasks.

Obviously, in a world that depends on network communication, this means that large networks must include some sort of means to quickly correct any problems that might arise; these days, it has become increasingly common for networks to rely on an out of band management solution in order to make certain that network capabilities are always available when users need them.

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Costs and Risks to Consider When Planning a Move to the Public Cloud

Wednesday, September 29th, 2010

This article nicely sums up some of the pros and cons of cloud computing …

Amazon’s EC2 has set the bar for VM/hour costs in the range of $0.05 for a small (2GB) reserved instance. This is the benchmark that internal IT organizations will need to compare against. How does your organization measure up? Do you have an internal cost per VM hour that you can meaningfully compare to EC2? In this post, I will try to compare the cost savings associated with a public IaaS cloud and the value-add of internal IT. (Note: I used EC2 for my analysis but a similar analysis can be made of other cloud providers.)

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New Datacenter Solutions From Dell Deliver Efficiency And Performance Without Compromise

Wednesday, June 9th, 2010

If you manage a data center, then you should also check out WTI’s secure, remote management tools, including our console server products, remote power reboot products and our console server plus power control hybrid products …

Round Rock, Texas

* Open and modular technology solutions help maximize flexibility for customers who want to innovate without lock-in
* New Business Ready Configurations help reduce cost and complexity by combining technologies in pre-configured bundles
* New products integrate seamlessly into Dell solutions for government, healthcare and education organizations
* New technology solutions, services and management functionality across servers, storage and networking enable customers to reallocate resources from maintenance to drive value and innovation

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Learn more about Cisco’s CCIE: Do you have what it takes?

Wednesday, May 19th, 2010

If you’re a network professional and you’re looking to upgrade your value in the job market, then this is definitely something to think about …

Cisco began the CCIE program back in 1993 as a way to single out those professionals who had the ability to support their solutions. Originally there was only the CCIE certification, and it was earned by taking a written exam and then a two-day lab in San Jose. The original proctor, Stuart Biggs was awarded the second CCIE number 1025 after the first number was awarded to the room the lab was held in, in San Jose. So #1024 is part of a plaque which was moved from the original lab to a newer lab in the same campus.

The first CCIE was Terry Slattery, #1026, an ambitious and energetic network engineer who was at the time working with a team to develop the CLI (command line interface) used to configure or program routers. The program became popular as more IT professionals were drawn to the technologies which made data communications work. The prerequisite for taking the exam and lab was experience because there were no commercially available training resources available in the beginning of the program. There was a training program offered at Cisco, but it was focused on those individuals who already had a good degree of experience.

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