In Depth
In Depth
Server hardware
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Pseudo-SLC flash storage: What is it, what’s it good for and what does it cost?
Pseudo-SLC takes MLC, TLC flash and changes data storage at cell level to get better endurance and performance, but it’s mostly aimed at edge applications and is costly Continue Reading
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Storage technology explained: Ransomware and storage and backup
We look at ransomware attacks, and the importance of good backup practice as well as immutable snapshots, air-gapping, network segmentation, AI anomaly detection and supplier warranties Continue Reading
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Broadcom’s VMware acquisition explained: The impact on your IT strategy
In this guide, we look at Broadcom’s acquisition of VMware and how it influences your IT desktop, server, cloud and supplier management strategies Continue Reading
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Storage technology explained: Flash vs HDD
In this guide, we examine the differences between flash storage and HDD, the rise of NVMe and much denser formats such as QLC, and whether or not flash will vanquish HDD in the all-flash datacentre Continue Reading
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Dell EMC: Storage giant shifts gear to cloud operating models
Storage profile: We look at Dell EMC, the result of the biggest tech acquisition ever, and find a company well set for ubiquitous cloud operating models and as-a-service Continue Reading
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DPU 101: What are DPUs, what do they do, and who supplies them?
We look at data processing units, the latest in a line of hardware offload devices that emerged in the era of composable infrastructure. They come as hardware and even in the cloud Continue Reading
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Five key questions about disaster recovery as a service
Disaster recovery as a service builds recovery data and systems into the cloud, accessible from anywhere. We look at the difference vs cloud backup, DRaaS use cases, the cost, and the firms that provide it Continue Reading
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Will computational storage meet data processing demands?
Computational storage promises performance for workloads that can benefit from dedicated oomph, but it’s not a cure-all. It may come at a cost, and with added application complexity Continue Reading
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IBM reorients to offset historic storage hardware decline
Storage profile: We look at IBM and the strategic shifts it has made towards the cloud, cloud-native and as-a-service offerings that aim to reverse a long-term decline in revenues Continue Reading
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Toyota car plant outage shows database capacity planning is vital
How could database deletes and re-organisation take out car production for 36 hours at 14 plants? We drill down into the details of database capacity planning Continue Reading
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SME disaster recovery: Five key points to consider
We look at key DR considerations for SMEs, including RPOs, RTOs, infrastructure needed for effective continuity and the right combination of cloud and in-house provision Continue Reading
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CXL in the datacentre: Boosting memory for hungry workloads
We look at CXL, how it revolutionises connectivity between memory components, potentially saves energy, and adds oomph to heavily memory-dependent workloads such as AI analytics Continue Reading
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HPE storage comes with full IT stack, hybrid cloud and as a service
Storage profile: We look at HPE, its Alletra storage refresh, and Greenlake and the ways the company is re-branding as a full-stack provider across on-prem and hybrid cloud Continue Reading
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Software-defined storage: What’s available from key players
What’s available in software-defined storage from the big storage players, software-defined storage specialists, and SDS options focused on cloud, virtualisation and containers Continue Reading
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Hitachi Vantara: Small part of a big corp and analytics focus
We look at Hitachi Vantara, its storage, its cloud offer, the workloads it targets, and its efforts in containerisation and consumption models of storage purchasing Continue Reading
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Software-defined storage: What it is and variants available
SDS is available in numerous variants. It is usually cheaper, flexible to deploy and brings storage efficiencies, but there are pitfalls in complexity, management and performance Continue Reading
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PLC flash: The next generation or a mirage?
PLC could be productised within two years, but chip makers might not think it worth the effort. Will managing multiple voltages be more hassle than adding layers to existing flash? Continue Reading
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HDD specs: Assess SATA vs SAS, sustained data rates and block size
In part two of a two-part series, we look at sustained data rates in hard disk drive specs, SATA versus SAS, drive security, and how HDD makers pack density into products by shingling Continue Reading
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HDD specs: Assess MTTF, AFR and UER to get the drives you need
In part one of a two-part series, we look at key hard disk drive specs, including mean time to failure, annual failure rate and unrecoverable error rate, and how they relate to each other Continue Reading
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Backup maintenance: Make sure backups can deliver
Deploying backup but overlooking the need to make sure it works is a common error. We look at the why and how of backup maintenance to help ensure you can recover from your backups Continue Reading
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IT’s shift to the cloud: Veeam’s data protection report in detail
With half of servers in the cloud, most backup and nearly all disaster recovery cloud-centric, the shift to the cloud is significant – but container backup is one area that is yet to settle down Continue Reading
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Storage hardware shortage causes and how to mitigate them
We look at the IT supply chain shortages that have hit data storage equipment, their causes and what organisations can do to work more smartly to mitigate them Continue Reading
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Carbon copies: How to stop data retention from killing the planet
Our society has a serious digital hoarding problem, which is coming at a cost to the environment. But what can be done to address it? Continue Reading
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Bfloat16: What it is and how it impacts storage
Bfloat16 is an emerging way to handle very large numbers, developed by Google for its machine and neural learning and prediction. We look at what it means for IT and storage Continue Reading
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CEA-Leti and the Silicon Valleys of Grenoble, France
At the intersection of three valleys in the French Alps lies the city of Grenoble, a hotbed of microelectronics, where much of the innovation is fuelled by CEA-Leti Continue Reading
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IT departments need holistic circular economies to fight climate change
With sustainability moving up the boardroom agenda, IT managers should revamp procurement strategies to align with the principles of the circular economy, but what does this mean for managing the IT lifecycle? Continue Reading
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Growing prospects for edge datacentres
Although the value that edge datacentres provide is not in question, for many companies, the journey to adoption is far from fixed Continue Reading
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Storage requirements for AI, ML and analytics in 2022
We look at what is needed for artificial intelligence and machine learning, and the pros and cons of block, file and object storage to store and access very large amounts of often unstructured data Continue Reading
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Snapshots best practice: Five key things you need to know
We look at snapshots best practice, including the way they work, why they are not the same as backups, how to avoid heavy processing overheads and key user permissions tweaks Continue Reading
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Software firm saves storage array costs with Nutanix hyper-converged
Banking SaaS provider Vialink needed more IOPS when its NetApp arrays slowed up, but Nutanix hyper-converged proved a better package than Pure Storage and Dell EMC, too Continue Reading
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Posix vs object storage: How much longer for Posix?
We look at Posix compliance in storage and why it is being challenged by object storage and the need to scale much further than Posix-oriented storage was ever intended to Continue Reading
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EDSFF brings built-for-NVMe connectivity to the datacentre
Aimed at enterprise use cases, EDSFF offers incredible flash density in shared storage and hyperscale deployments, but storage products that use it are still thin on the ground Continue Reading
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Finland moves to industrialise quantum computing
For the Finnish government, now is the time to start preparing for the day when quantum computers will have practical value Continue Reading
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New supercomputer opens doors for researchers in Sweden
More than twice as powerful as its predecessor, a new supercomputer ushers in new opportunities for researchers who rely on artificial intelligence and machine learning Continue Reading
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Scale-up vs scale-out: Horizontal vs vertical scaling for storage
We look at the differences between scale-up and scale-out in storage – or horizontal vs vertical scaling – and the key ways it can be carried out on-prem and in the cloud Continue Reading
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Edge storage: Four key points
Edge storage is driven by rapidly emerging edge computing and data gathering use cases. We look at why it makes sense to store data at the edge and the key challenges involved Continue Reading
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Five ways the hyper-converged infrastructure market is changing
We look at changes in the hyper-converged infrastructure market as suppliers go cool, go soft, disaggregate HCI nodes, provide as-a-service options and look to containers Continue Reading
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NVMe-over-fabrics: Five need-to-knows
We look at five need-to-knows about NVMe-over-fabrics, such as its implementations – RDMA, Fibre Channel and TCP – use cases, hardware and operating system support Continue Reading
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HDD support and Zoned Namespaces: Key takeaways about NVMe 2.0
We look at new capabilities in the most recent iteration of the NVMe flash storage standard Continue Reading
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Disaster recovery for SMEs: Five key areas to consider
We look at key disaster recovery considerations for SMEs, including why backup is not enough, how to create a disaster recovery plan, best-practice DR testing and DR as a service Continue Reading
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Five things you need to know about NVMe over Fabrics
We look at NVMe-oF, which extends fast flash across the network – what it is, how it works, use cases, benefits and limitations, and the suppliers of NVMe-oF products Continue Reading
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Storage performance metrics: Five key areas to look at
We look at the essentials in storage performance metrics: capacity, throughput and read/write capability, IOPS and latency, and hardware longevity measured by failure rates Continue Reading
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Gartner: How to turn old datacentres into critical IT assets
IT infrastructure and operations leaders are increasingly focusing on new ideas and technologies alongside ways to deliver business value Continue Reading
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Where to run containers? Bare metal vs virtual machines
We look at the key differences between running containers in virtualised environments and on bare metal servers and focus in on the main trade-offs and decision points Continue Reading
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Five reasons to look at hyper-converged infrastructure
HCI promises easy setup, purchasing flexibility, low procurement and operation costs, reliability and all in one box – but there are challenges too Continue Reading
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Data warehouse storage: Has cloud made on-premise obsolete?
There once was no alternative to building a data warehouse on-premise, but with cloud providers targeting analytics, building data warehouses on-site is looking obsolete Continue Reading
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Ecolabels and data sanitisation key to recycling and reusing IT assets
Ecolabels on hardware and data sanitisation of devices are key to recycling and reusing old IT equipment respectively, helping enterprises avoid unnecessary asset destruction and contributing to increasingly high levels of electronic waste globally Continue Reading
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Backup appliances the hot topic for Pas-de-Calais fire brigade
With requirements for strict, long-duration backup and archiving, French fire brigade set out to replace optical media with a StorageCraft appliance and disaster-proof storage Continue Reading
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QLC flash storage: What it costs and its best use cases
QLC flash brings high capacities at costs coming down close to spinning disk. So what are the use cases for QLC solid state, which make best use of its relatively low endurance Continue Reading
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Containers for a post-pandemic IT architecture
One of the positive effects of Covid-19 is that it has put IT at the top of the business agenda – and containerisation is part of that strategy Continue Reading
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Ski firm dumps ‘motley’ storage for DataCore software-defined
Eurogroup cuts power usage by 70% and rackspace from 84U to 7U as it consolidates multiple physical servers and storage protocols onto SANsymphony software-defined storage Continue Reading
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Five hyper-converged infrastructure use cases to watch
We look at workloads ripe for hyper-converged infrastructure deployment. These include virtual servers and desktops, SMEs/remote offices, Kubernetes, and analytics and machine learning Continue Reading
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Paris post-product studio uses Atempo Miria for live restores
France-based À La Plage Studio decided on tape as a medium to store its visual production work, with Atempo ADA/Miria as a means to access and restore data to work on Continue Reading
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RAID, flash and erasure coding: What works best with solid state?
We 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? Continue Reading
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Intel Optane Persistent Memory aims to fill the gap DRAM can’t
We look at Optane and its PMem product that Intel believes will fill a big gap between memory and storage that DRAM technology just cannot deal with Continue Reading
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Spinning disk hard drives: Good value for many use cases
When 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 Continue Reading
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NVMe-over Fabrics: How NVMe-oF revolutionises shared storage
NVMe brought super-fast flash storage to the datacentre, but it needs NVMe-oF to allow it to bring the benefits of rapid access and low latency to SAN and NAS shared storage Continue Reading
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Backup audit: What is a backup audit and why do we need them?
Backup and recovery are vital components to protect against data loss, whether technical or causes such as ransomware. So how can a backup audit help protect our key assets? Continue Reading
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Five on-premise and cloud options for network-attached storage
We look at five options for file access storage, from ‘traditional’ NAS in a standalone appliance to distributed hybrid cloud file storage and NAS cloud gateways Continue Reading
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Storage pros and cons: Block vs file vs object storage
Despite the many changes in storage, there are still some fundamentals that hold true. We look at the key defining characteristics and use cases of block, file and object storage Continue Reading
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Storage 101: Replication vs backup, and synchronous vs asynchronous
Storage 101: Can replication replace backup? What are the pros and cons of synchronous and asynchronous backup? What’s the best way to mix backup and replication? Continue Reading
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Storage 101: Crash-consistent vs application-consistent snapshots
We look at crash-consistent and application-consistent snapshots and backup, how they are defined, the pros and cons of each and the benefits and limits of Windows VSS Continue Reading
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NAS backup: Which suppliers have gone post-NDMP?
NAS backup with NDMP has many drawbacks so some vendors have moved to a data management approach that tracks changes and allows for incremental forever protection Continue Reading
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Computational storage: What is it and what are its key use cases?
Computational storage brings the CPU to the storage and so boosts system performance by tackling processing tasks, such as near the edge or in AI/machine learning workloads Continue Reading
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How Oxeva delivered budget analytics with Pure Storage flash NAS
Web hosting provider Oxeva thought the consultants were mistaken and that what suited the web giants for analytics/big data wasn’t necessarily what was needed for enterprise customers Continue Reading
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Molotov.tv streams 24/7 with Dell EMC and Scality object storage
France-based Molotov.tv has offered streaming TV services on digital platforms since 2016, based on Dell EMC servers with GPU acceleration and Scality Ring object storage Continue Reading
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Upcoming conflict minerals regulation does not cover major technology companies
A forthcoming regulation designed to stem the flow of conflict minerals is unlikely to change the behaviour of technology companies because loopholes in the new rules mean they are not covered Continue Reading
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Cache vs tier: What’s the difference between cache and storage?
We look at the key distinctions between cache and tiers of storage, and where the line has become blurred with fast flash, 3D Xpoint and storage class memory technologies Continue Reading
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Flash storage tiers: Performance, cost and use cases
We look at performance, cost and potential use cases for the key flash storage types available, such as Nand flash, 3D Xpoint and Intel Optane, plus SAS, SATA and NVMe connectivity Continue Reading
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Rook 101: Building software-defined containerised storage in Kubernetes
Rook – think castles, not birds – uses the principles of containerisation and the methods used in Kubernetes to build storage that’s abstracted from the hardware it lives on Continue Reading
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From Pixar to GovTech: The inside story of Singapore’s AI whizz
After nearly a decade at Pixar, GovTech’s Chong Jiayi is leading a team of experts to solve hard problems in robotics and artificial intelligence Continue Reading
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Caribbean island hospital rebuilds after hurricane with DataCore
Hurricane Irma tore the roof off a server room and flooded IT hardware, but that was an opportunity to rebuild redundant IT using DataCore’s SANsymphony software-defined storage Continue Reading
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Big storage meets cloud in the datacentre 'as-a-service' revolution
Cloud is mainstream but the datacentre’s here to stay. This has resulted in a trend towards as-a-service in the datacentre where big storage array makers and the cloud giants meet Continue Reading
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Five ways that backup has changed since the days of tape
Back in the day, all this was tape, but times have changed, with cloud-to-cloud backup, cloud storage, virtual and physical backup appliances and myriad endpoint hardware Continue Reading
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Processors re-imagined: Will cloud and AI lead mean all change in the datacentre?
We look at the changes cloud-native platforms and artificial intelligence could bring about in the datacentre. Continue Reading
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Top 10 storage deployment stories of 2019
Here are ComputerWeekly’s top 10 storage deployment stories for 2019, which see quite a move away from traditional SAN and NAS to hyper-converged, software-defined storage and object storage Continue Reading
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How to buy hyper-converged infrastructure
Simplicity, high availability, scalability and reduced cost are among the benefits of hyper-converged infrastructure. We survey the benefits, pitfalls and the key suppliers Continue Reading
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Figeac Aero manages growth with DataCore software-defined storage
Global roll-out sees DataCore software-defined storage deployed on Huawei hardware to HQ and 14 worldwide sites as aero parts maker copes with acquisition and expansion Continue Reading
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NVMe-over-TCP brings super-fast flash over standard IP networks
TCP is the latest transport protocol that can be used to connect NVMe flash storage. We explain how NVMe-over-TCP works and the key advantages for datacentre customers Continue Reading
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What is QLC flash and what workloads it is good for?
QLC flash offers low per-gigabyte costs and lots of capacity, but can be limited by endurance and I/O performance. It can be a good disk replacement for several workloads, however Continue Reading
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Is NVMe flash the right choice for you?
NVMe flash storage boosts performance for I/O-hungry operations, but how does it work, where can organisations best deploy it, and what are the key uses cases where it can make a difference? Continue Reading
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How to deploy NVMe flash storage for artificial intelligence
We run the rule over NVMe flash as a storage choice for AI applications and the key decision points in form factor and hardware specification Continue Reading
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The pitfalls of hyper-converged infrastructure and how to avoid them
Hyper-converged infrastructure can be an easy win when it comes to datacentre infrastructure upgrades, but there are pitfalls. We discuss how best you can sidestep them Continue Reading
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French baby store modernises backup as Veeam handles 150TB a night
France-based maternity, baby and children’s store Orchestra needed to share IT resources between 700 points of sale across multiple time zones, and backup for 100 applications Continue Reading
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Enterprise HPC: Why HPE is buying Cray
HPE’s decision to acquire supercomputing pioneer Cray for $1.3bn serves to highlight the growing importance of high-performance computing (HPC) deployments in the enterprise market Continue Reading
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SAN vs NAS vs hyper-converged for virtual machine storage
The pros and cons of file and block access storage arrays vs the new breed of all-in-one server/storage architecture for storage of virtual machine systems and data Continue Reading
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Hyper-converged infrastructure vs NAS and SAN shared storage
Can compute, storage and networks in one box be a better option than shared storage? And which organisations can most benefit from it, and for what scale of deployment? Continue Reading
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NVMe startups’ different routes to flash performance gains
NVMe offers huge flash performance benefits, but no one is quite sure how to overcome the challenges that brings and startups are trying several different approaches Continue Reading
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Cloud the rising star of storage: Eight years of text analysis
Tracking word frequency in nearly a decade’s worth of storage content shows how cloud has come of age, flash has gone mainstream and how we don’t talk about virtualisation any more Continue Reading
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Storage 101: Structured data and its storage needs
Structured data is declining as a proportion of all data but its importance to business applications and its organised nature make its storage requirements very specific Continue Reading
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NVMe is fast flash storage, but big five suppliers take it slowly
NVMe flash offers blistering performance gains but so far the big five storage array makers have tended to opt for gradual implementations rather than radical new architectures Continue Reading
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What is storage-class memory and what is it used for?
HPE has announced the availability of storage-class memory in its products and other array makers are expect to follow. So what does SCM do for analytics-centred workloads? Continue Reading
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NVMe over Fabrics brings benefits of NVMe to shared storage
NVMe over Fabrics – with NVMe carried over Fibre Channel, Ethernet, Infiniband and other protocols – could revolutionise shared storage. We look at how the market is shaping up Continue Reading
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Intel Optane DIMM aims at persistent storage on the motherboard
Intel to make 3D Xpoint flash available to applications in a tier below RAM and above storage, with in-memory databases, analytics and high performance computing set to benefit Continue Reading
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Storage 101: The final flash generation? QLC vs MLC, TLC, SLC
QLC flash products have arrived in the market, but with a limited performance profile, has NAND flash come up against the realities of the physics that make it possible? Continue Reading
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Software-defined storage: Startups bring innovation to SDS
We survey the startup suppliers pioneering new approaches to software-defined storage, including block, file and object, and VM and container-oriented approaches Continue Reading
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Storage class memory set to upset hardware architectures
Storage class memory and persistent memory products are set to add a layer of superfast storage media between bulk drives and memory, pushing performance to five million IOPS Continue Reading
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DR 101: The disaster recovery plan and disaster recovery strategy
We walk through the key steps and essential building blocks required to develop a disaster recovery strategy and how to write a disaster recovery plan Continue Reading
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Disaggregated systems try to unlock the NVMe conundrum
NVMe can unlock the true potential of flash, but storage controllers put a bottleneck back in the I/O path. We look at how suppliers are trying to solve the problem Continue Reading
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Hyper-converged infrastructure 2018 technology and market survey
We look at the latest in hyper-converged infrastructure – server and storage hardware nodes that can be built into scale-out clusters – and the players in the market Continue Reading