Reading Time-approximately: < 1 minuteJBOD (which stands for “just a bunch of disks”) generally refers to a collection of hard disks that have not been configured to act as a redundant array of independent disks (RAID) array. By Brien Posey RAID arrays write data across multiple disks as a way of storing data redundantly (to achieve fault tolerance) or to stripe data across multiple disks to get better performance than any one disk could
Reading Time-approximately: 6 minutesRAID 10, also known as RAID 1+0, is a RAID configuration that combines disk mirroring and disk striping to protect data. It requires a minimum of four disks and stripes data across mirrored pairs. As long as one disk in each mirrored pair is functional, data can be retrieved. If two disks in the same mirrored pair fail, all data will be lost because there is
Reading Time-approximately: 2 minutesIn a battle of RAID vs. backup, both could win. While RAID offers disk failure protection, it falls short in other areas where backup comes in handy. By Brien Posey RAID and backups are both useful — but different — tools for IT pros who protect their organization’s data. RAID cannot provide a suitable substitute for backup, but you can
Reading Time-approximately: 4 minutesWhen overseeing virtual servers, take advantage of self-service VM management, VM templates, monitoring tools and permissions groups to ease the management burden. By Rob Bastiaansen Managing virtual servers has its advantages compared to physical servers, but it also brings new challenges to the table. When each workload ran on its own physical server, management was simple and straightforward. If there
Reading Time-approximately: 4 minutesExpert Brien Posey discusses seven factors to consider when deciding whether or not server virtualization management software would be beneficial for your company. By Brien Posey With a number of different vendors offering server virtualization management software, administrators must question whether such a product is a good fit for their organization. In doing so, there are seven primary considerations that
Reading Time-approximately: 3 minutesA bare-metal hypervisor, also known as a Type 1 hypervisor, is virtualization software that has been installed directly onto the computing hardware. By Brien Pose and Kim Hefner This type of hypervisor controls not only the hardware, but one or more guest operating systems (OSes). In comparison, a hosted hypervisor, or Type 2 hypervisor, runs within the host OS, so the underlying hardware is managed by the host
Reading Time-approximately: 3 minutesCache memory and random access memory both place data closer to the processor to reduce latency in response times. Learn why cache memory can be the faster option. By Jon Toigo and Stacey Peterson One response to the difference between RAM and cache memory question might be one of a real estate agent’s old favorites: “Location, location, location!” Cache is usually part
Reading Time-approximately: 5 minutesStorage and memory, while connected, fulfill separate roles in a computer. Memory meets temporary data access needs and storage retains data and other files over the long term. By Brett Cooper, Rodney Brown and Stacey Peterson The terms memory and storage both refer to a computer’s internal storage space. Memory is where an application puts the data it uses during processing. A storage drive
Reading Time-approximately: 4 minutesWhen it comes to storage media, all talk is of flash, but there are plenty of use cases where – far less costly – spinning disk can do a perfectly adequate job in the enterprise. By Stephen Pritchard Over the last few years, much of the enterprise storage market has focused on flash technology, but the hard disk drive (HDD) format has
Reading Time-approximately: 3 minutesTLC flash (triple-level cell flash) is a type of NAND flash memory that stores three bits of data per cell. TLC is also known as MLC-3, 3-bit MLC and X3. By Carol Sliwa and Todd Erickson Common use cases for TLC flash include enterprise- and consumer-grade solid-state drives (SSDs), storage cards in digital cameras and mobile phones, and USB drives. TLC flash
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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