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
Reading Time-approximately: 3 minutesMulti-level cell (MLC) flash is a type of NAND flash memory that can store more than 1 bit per cell. NAND flash is a form of nonvolatile storage memory, which allows it to retain data without being attached to a power source. By Garry Kranz What’s the difference between enterprise MLC and consumer MLC? Multi-level cell flash is a midpoint between single-level cell (SLC)
Reading Time-approximately: 7 minutesNVMe over Fabrics, also known as NVMe-oF and non-volatile memory express over fabrics, is a protocol specification designed to connect hosts to storage across a network fabric using the NVMe protocol. By Alexander S. Gillis The protocol is designed to enable data transfers between a host computer and a target solid-state storage device or system over a network — accomplished through a NVMe message-based
Reading Time-approximately: 4 minutesRAID 50 combines striping with distributed parity for reduced data loss and better performance. By Rick Cook and Erin Sullivan Much as the name implies, RAID, or redundant array of independent disks, uses redundancy to reliably protect and store data on hard disks and SSDs. There are numerous RAID options out there, and the most common is RAID 5. If you’re looking
Reading Time-approximately: 4 minutesFlash storage is mainstream, but what do storage professionals need to know about Raid when used with SSDs? We look at Raid fundamentals, and supplier implementations. By Antony Adshead A fundamental keystone of data protection, Raid (redundant array of independent disks) has been around for decades. The building blocks are very simple. Multiple disk drives allow data to be distributed via striping
Reading Time-approximately: 4 minutesWe look at RAID and flash to highlight key choices when it comes to drive data protection. What RAID levels work best with solid state and when is erasure coding a good choice? By Stephen Pritchard RAID systems have been the building blocks of enterprise storage since the 1990s. But RAID – redundant array of inexpensive disks – originated the decade before that in
Reading Time-approximately: 4 minutesPerformance, capacity and data protection features are a few of the many factors SMB organizations should consider in their comparisons of entry-level SANs. By Robert Sheldon Storage area networks are no longer the exclusive domain of large organizations. Many vendors offer entry-level SAN products, hoping to lure customers away from their network-attached or direct-attached storage systems. But SAN products vary significantly in
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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