Reading Time-approximately: 5 minutesSlow network speeds, weak Wi-Fi signals and damaged cabling are just some of the most common network connection issues that IT departments need to troubleshoot. By David Jacobs Business networks are complex, and many things can go wrong that disrupt network performance. End users often complain about what appears to be poor application performance, and there can be many possible
Reading Time-approximately: 3 minutesScalable Processor Architecture (SPARC) is a 32- and 64-bit microprocessor architecture developed by Sun Microsystems in 1987. By Rahul Awati SPARC is based on reduced instruction set computing (RISC). SPARC has become a widely used architecture for hardware used with UNIX-based operating systems, including Sun’s own Solaris systems. Sun made SPARC an open architecture that is available for licensing to microprocessor manufacturers. Sun was acquired by Oracle Corporation in January
Reading Time-approximately: 4 minutesA delay-tolerant network (DTN) is a network that’s designed to operate effectively in extreme conditions and over very large distances, such as with space communications. By Rahul Awati In such environments, the conventional internet does not work; networks are also subject to frequent disruptions, high error rates and latency of hours or even days. A DTN can overcome such challenges and reliably transmit information, ensuring dependable
Reading Time-approximately: 5 minutesThe main steps to configure DHCP on Windows Server are installation, Active Directory authorization, creating a scope and DNS registration. Learn about other tasks and best practices. By Damon Garn Network nodes require an IP address configuration that usually comprises the IP address, subnet mask, default gateway IP for the router, name servers and other values. Administrators can manually set
Reading Time-approximately: 6 minutesAdvanced planning can prevent server cooling failures, and good practices can help to remedy them and minimize the negative impact on your data center. By Bill Kleyman Network infrastructure and design is an intricate, delicate process where every decision can affect every server in your data center. Too often, server cooling requirements are overlooked, misjudged or severely underestimated. This can happen in
Reading Time-approximately: 3 minutesHVAC stands for heating, ventilation and air conditioning. In computing and especially in enterprise data centers, HVAC systems control the ambient environment (temperature, humidity, air flow and air filtering) and must be planned for and operated along with other data center components such as computing hardware, cabling, data storage, fire protection, physical security systems and power. By Robert Sheldon Almost all IT hardware comes with environmental
Reading Time-approximately: 4 minutesEdge virtualization is the practice of using software versions of physical computing resources at the edge of a network, closest to the devices that produce data. By Ben Lutkevich In virtualization, the entire software stack — including operating systems (OSes) and everything that runs on them — is separated from the underlying hardware. Instances can then be copied and distributed to
Reading Time-approximately: 4 minutesA storage volume is an identifiable unit of data storage. It can be a removable hard disk, but it does not have to be a unit that can be physically removed from a computer or storage system. By Robert Sheldon and Paul Crocetti The term volume, as it relates to storage, can refer to a physical volume or logical volume. A physical
Reading Time-approximately: 8 minutesThe main types of network cables are coax, fiber optics, and shielded and unshielded twisted pair. As enterprises deploy new technologies, it’s critical to select the right cables. ByChris Partsenidis and David Jacobs Selecting cables is a crucial part of network design. Required data rate, cost and distance all dictate the range of choices for each connection. Some connections require
Reading Time-approximately: 3 minutesChoosing the right CPU for virtual infrastructures depends on several factors, including feature sets and hardware specs. Proper configuration of processor resources is also crucial. By Ryann Burnett Choosing a CPU for virtualization and properly configuring it are just as important as choosing memory, storage and network resources; a processor that doesn’t make sense for the infrastructure or one that’s
What is COVID-19?
On 31 December 2019, the World Health Organization (WHO) reported a cluster of pneumonia cases in Wuhan City, China. ‘Severe Acute Respiratory Syndrome Coronavirus 2’ (SARS-CoV-2) was confirmed as the causative agent of what we now know as ‘Coronavirus Disease 2019’ (COVID-19). Since then, the virus has spread to more than 100 countries, including South Africa.
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