In Depth

In Depth

Computer storage hardware

• 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

• IP surveillance: The storage it needs, on-premise and in the cloud

  Surveillance is changing, with the evolution from simple streams of sequential images to the application of AI to video, as well as an increasing move to use of the cloud  Continue Reading

• Brain researchers get NVMe-over-RoCE for super-fast HPC storage

  French neurological researchers deploy Western Digital OpenFlex NVMe array for super-fast HPC storage with Ethernet-based NVMe-over-Fabrics connectivity across several floors  Continue Reading

• Need to know: Five key things about backup testing

  We look at five key things to consider when it comes to backup testing – what to test, how often, making sure backups work, whether recovery is effective and ensuring processes are consistent  Continue Reading

• 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

• 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

• Unified file and object storage: The best of both worlds?

  Unified file and object storage tackles growing volumes of unstructured data in a way that’s compatible with traditional and cloud-era applications, and friendlier to analytics  Continue Reading

• 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

• 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

• Erasure coding vs RAID: Data protection in the cloud era

  Erasure coding has come to prominence with its use in object storage and, by extension, in the cloud. We run the rule over its pros and cons vs RAID data protection  Continue Reading

• Top five ways backup can protect against ransomware

  Ransomware threatens to put your data beyond reach, so the best way to prepare is to have good-quality data you can restore from backup. We look at the key things to consider  Continue Reading

• Top five ways to benefit from tape today

  We look at the benefits that tape can bring, including in backup and recovery, long-term and ‘warm’ archiving, compliance and WORM use cases and ‘air gapping’ to protect data  Continue Reading

• Storage analytics: How AI helps storage management

  We look at storage analytics products that measure key metrics in storage hardware, single-vendor and multi-vendor tools, and how AI-based storage management and AIOps is emerging  Continue Reading

• Cloud storage costs: How to get cloud storage bills under control

  Many organisations look to the cloud to cut storage budgets, but the potential costs are many and varied. So what are the key ways to cut cloud storage costs?  Continue Reading

• 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

• Storage skills in the age of the cloud and convergence

  Storage skills was a discrete area in the IT jobs market, but that’s being eroded by the cloud, hyper-convergence infrastructure, and virtualisation. So, what are the key storage skillsets today?  Continue Reading

• 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

• Decision points in storage for artificial intelligence, machine learning and big data

  Artificial intelligence and machine learning storage is not one-size-fits-all. Analytics work differs, and has varied storage requirements for capacity, latency, throughput and IOPS. We look at key decision points  Continue Reading

• Cloud storage on-site hardware: AWS, Azure, Google Cloud

  We look at the big three cloud vendors’ on-site offerings: AWS’s Outposts, Gateway and Snow hardware, Azure’s Stack and Arc appliances, and Google Cloud’s software-defined Anthos  Continue Reading

• Cloud storage 101: NAS file storage on AWS, Azure and GCP

  We look at NAS file storage options in AWS, Azure and Google Cloud. All three offer native-based and NetApp-based file storage, with Azure adding single namespace cache services  Continue Reading

• Cloud storage 101: File, block and object storage in the cloud

  We run the rule over file, block and object storage from the big three public cloud providers: AWS, Azure and GCP. We look at what’s on offer and the use cases they are aimed at  Continue Reading

• Mainframe storage: Three players in a market that’s here to stay

  Far from disappearing, the mainframe market and the storage it needs is here to stay for some time. The three key array makers compete with high-end flash-equipped products  Continue Reading

• 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

• 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

• Snapshots 101: Array vs backup software

  We run the rule over snapshots in storage arrays and backup software and find a range of capabilities that go from mere support to fully snapshot-centric approaches  Continue Reading

• Storage 101: Snapshots vs backup

  We go over the basics of snapshots. They are a quick and accessible way of protecting data, but they are not a substitute for backup. So how do you combine the two?  Continue Reading

• High-performance object storage: What’s driving it?

  Object storage is getting its performance on to meet the needs of content delivery, analytics and IoT use cases while enabled by rapid flash storage media and other tech advances  Continue Reading

• Multicloud storage 101: Pros, cons, pitfalls and strategies

  Not putting all your eggs in one basket can be helpful to an enterprise’s resilience strategy. We look at multicloud storage and the benefits and pitfalls it brings  Continue Reading

• 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

• Top five compliance concerns for UK business in 2020

  We look at the top five legal and regulatory compliance concerns for UK businesses in 2020. It’s a list that includes GDPR, the DPA, PECR, PCI-DSS and the CCPA  Continue Reading

• What’s the problem with NAS backup?

  NAS backup has always been problematic, but what exactly are the issues with NDMP, and what are backup suppliers doing to make a decades-old storage staple easier to protect?  Continue Reading

• 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

• 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

• Container storage 101: What is CSI and how does it work?

  We look at the container storage interface, which provides an interface to persistent storage in the products of storage array makers, and how it relates to Kubernetes  Continue Reading

• 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

• 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

• 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

• 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

• Kubernetes storage 101: Container storage basics

  We look at the basics of creating storage and specifying it for applications in container storage using Kubernetes Persistent Volumes and Persistent Volume Claims  Continue Reading

• 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

• Top four compliance considerations for SMEs

  We look at the key data compliance regulations that affect smaller companies – such as GDPR, the Data Protection Act, PCI-DSS and PECR – and some key industry-specific frameworks  Continue Reading

• Six disaster recovery pitfalls and how to avoid them

  We look at some key pitfalls in disaster recovery, such as failing to plan, not testing the plan, not protecting backups, poor communication and neglecting the human element  Continue Reading

• Spread of Kubernetes spurs backup and disaster recovery products

  Growth of containerised applications brings with it the need to back up and provide disaster recovery. But what do you need to protect, and who provides the products?  Continue Reading

• Do you use cloud storage for these use cases yet?

  We look at the use cases most suited to a quick transition to the cloud: backup, archiving, disaster recovery, file storage and cloud bursting – cloud storage’s low-hanging fruit  Continue Reading

• 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

• DRaaS decisions: Key choices in disaster recovery as a service

  We examine the key decisions when considering DRaaS. Whether to go full self-service, assisted or managed will depend on what you need to protect and your in-house resources  Continue Reading

• 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

• 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

• 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

• Five essential steps to a sound disaster recovery plan

  We walk through the key steps to develop a disaster recovery plan – from risk assessment and setting recovery objectives, to the plan itself and a testing regime to keep it fresh  Continue Reading

• 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

• SME disaster recovery made easy with cloud, hybrid and HCI

  Disaster recovery is a lot easier for small businesses than it used to be, with use of the cloud, hybrid cloud, physical and virtual appliances, and hyper-converged infrastructure all among the choices on offer  Continue Reading

• 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

• 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

• 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

• Key storage choices: Cloud vs tape for archive storage?

  Tape still has benefits, such as an ‘air gap’ that can insulate archives from threats to data integrity. But what are the opportunities for cloud in tape’s traditional use cases?  Continue Reading

• Key differences between cloud storage offerings

  Cloud storage offerings are often largely similar. We run through the key areas where they can differ, such as location, range of services and data protection  Continue Reading

• DevOps and storage: APIs and flexibility key

  The details of back-end storage are irrelevant to DevOps engineers, but they need enough of it, when they want it, and the ability to manage it programmatically is key  Continue Reading

• Data storage: The top five storage deployment pitfalls

  Key pitfalls in data storage include silos, under-utilisation, backup and disaster recovery, plus neglect of skills and application requirements. We ask analysts how to avoid them  Continue Reading

• Storage and DevOps: What is required for agile development?

  DevOps brings continuous and agile application. Storage has to fit in and make itself just as responsive to development that does away with the inertia of stifling hierarchies  Continue Reading

• Top five cloud storage pitfalls

  Cloud storage offers apparent simplicity, but unexpected costs, complexity, data movement and integration challenges can arise. We look at how to avoid common cloud storage pitfalls  Continue Reading

• Scale-out NAS hits the spot for large datasets, AI and machine learning

  Despite the rise of cloud and object storage, scale-out NAS is a key choice for the big datasets increasingly prevalent in artificial intelligence and machine learning scenarios  Continue Reading

• On-premise object storage: Key products and use cases

  We run the rule over on-premise object storage, key use cases and suppliers, take a closer look at an organisation that has deployed object storage, and assess cloud compatibility  Continue Reading

• French national research centre insources with Rubrik backup

  France’s national research organisation wanted to insource IT back from Atos and built its private cloud on VMware across two locations with Rubrik appliances for backup  Continue Reading

• 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

• Hop jumps to Pure Storage to avoid big storage complexity

  Air France short-haul and regional brand Hop jumps to Pure Storage after coming up against Dell EMC, NetApp and HPE, which all tried to sell it solutions ill-suited to its needs  Continue Reading

• 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

• Public cloud: A key component in a disaster recovery plan

  The key things to consider when creating a disaster recovery plan that uses public cloud: DIY vs DRaaS, native cloud tools vs third party, and how low can you go with RPO and RTO?  Continue Reading

• 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

• Cloud snapshots and backups: How to protect data in the cloud

  You often need more data protection than native cloud services will give. But should you choose backup or snapshots? And what about third-party backup in the cloud?  Continue Reading

• Unstructured data compliance: Obstacles and solutions

  Stored unstructured data could be a black hole full of unknown risk. We look at the key dangers to compliance in unstructured data and some ways of mitigating the risks  Continue Reading

• AI storage: Machine learning, deep learning and storage needs

  Artificial intelligence workloads impact storage, with NVMe flash needed for GPU processing at the highest levels of performance – and there are other choices right through the AI data lifecycle  Continue Reading

• 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

• Cloud storage and its main cost components

  We run through the main items charged for by the big cloud storage providers, such as capacity, storage type, transactions, data egress, networks and data protection  Continue Reading

• 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

• Software-defined storage vs NAS/SAN: What are the options?

  We look at the pros and cons of software-defined storage and weigh up when it’s a better option than buying NAS and SAN pre-built hardware shared storage arrays  Continue Reading

• Cloud’s low-hanging fruit: Backup, tiering and data sharing

  Native cloud operations can have a steep on-ramp in terms of enterprise IT readiness, but some things are relatively easy to port to a tier of storage in the cloud  Continue Reading

• How to avoid a hyper-convergence minefield

  How firms can implement hyper-converged infrastructure to make cost and performance savings  Continue Reading

• Don’t let datacentres be a waste of space

  Storage costs can be saved by improving the utilisation of existing storage infrastructures  Continue Reading

• Scale-out NAS: File storage with cloud and flash from big five

  We run the rule over scale-out NAS from the big five storage array makers to find all-flash and hybrid-flash commonplace and use of the cloud as a tier almost ubiquitous  Continue Reading

• 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

• Cloud storage 101: Specifying for cloud storage

  We run through key questions to ask when specifying cloud storage, such as disk type, performance, availability and the possible hidden cost of getting data out of the cloud  Continue Reading

• Cloud storage 101: Cloud gateways for hybrid cloud connectivity

  Two of the big three public cloud providers – Amazon Web Services and Microsoft Azure – offer gateway on-ramps that can speed the deployment of hybrid cloud operations for SME and remote office locations  Continue Reading

• Storage 101: Object storage in the big three public clouds

  We look at the object storage services of the big three cloud providers – Amazon S3, Microsoft Azure Blob and Google Cloud Storage – and how customers can achieve compatibility between them  Continue Reading

• Enterprise and midrange SAN survey 2019: Hitachi, IBM and NetApp

  Part two of two: While all-flash is mainstream, NVMe is an option as disk replacement for most suppliers, while NetApp leads the way with NVMe end-to-end to hosts  Continue Reading

• Enterprise and midrange SAN survey 2019: Dell and HPE

  Part one of two: All-flash is mainstream, with NVMe also offered. Dell offers NVMe drives while HPE reserves it for use as storage-class memory as a cache layer  Continue Reading

• Backup product approaches vary as they take aim at the cloud

  Use of the public cloud for backup data is something all the backup software suppliers provide, but implementations range from simple S3 connections to expansive software offerings  Continue Reading

• 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

• Career choices for storage admins as technologies converge

  There is collateral damage in datacentre convergence, and it is becoming increasingly difficult for storage administrators to stick with storage-centric skillsets. Two solutions exist  Continue Reading

• 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

• A cloud compliance checklist for the GDPR age

  The cloud is supposed to make things simpler, but when it comes to compliance, things can get complex. Here is a look at the essential elements of a cloud compliance strategy  Continue Reading

• 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

• Top 10 cloud storage stories of 2018

  Top trends in cloud storage in 2018 included key enablers of hybrid- and multi-cloud such as native cloud storage, array makers’ cloud appliances and distributed file systems  Continue Reading

• 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

• 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

• Data protection, backup and replication in the age of the cloud

  A data protection and backup strategy has to take account of the expansion of the sphere of IT, from the datacentre to the public cloud to devices and locations at the edge  Continue Reading

• How to build SME storage using public cloud storage

  Small companies can often take advantage of public cloud storage offerings to supplement or replace on-premise infrastructure. We look at key options in file, block and object storage  Continue Reading

• Storage 101: Unstructured data and its storage needs

  Unstructured data exists in huge volumes, but often it is semi-structured with metadata. We lift the lid on unstructured data and key approaches to its storage  Continue Reading

• Fortunes of storage vary in big five led by Dell EMC and NetApp

  The big five take 50% of the enterprise storage market, with Dell EMC and HPE dominating. But some struggle with successive quarters of shrinkage while others see storage shine  Continue Reading

• Hyper-converged backup appliances bring flexibility benefits

  Backup appliances in scale-out format allow data protection to be scaled easily by simply adding extra nodes. But is it an idea that’s ready for the enterprise?  Continue Reading