In Depth

In Depth

SAN, NAS, solid state, RAID

• Unstructured data storage – on-prem vs cloud vs hybrid

  We look at storage for unstructured data on-premise, in the cloud and across multiple locations. There are advantages to a hybrid approach, but there can be hidden costs, too  Continue Reading

• File, block and object: Storage fundamentals in the cloud era

  We look at the three basic ways that storage accesses data – via file, block and object – as well as the ways in which the rise of the cloud and distributed systems have brought changes to them  Continue Reading

• Backup maintenance: Five key points to consider

  Effective backups need to ensure all data is protected, and to track media and software changes. We look at five key things to consider  Continue Reading

• Global file systems: Hybrid cloud and follow-the-sun access

  We look at global distributed file systems that put enterprise data under a single file access namespace so that enterprises and branch offices can get to data from anywhere  Continue Reading

• Data gravity: What is it and how to manage it

  Data gravity can attract increasing amounts of data, and brings with it onerous management overheads. We look at how to mitigate data gravity in datacentre and cloud  Continue Reading

• Unified file and object storage: Three suppliers and their approaches

  We look at unified file and object storage products from NetApp, Pure Storage and Scality, the differences, the workloads aimed at, and how unified they actually are  Continue Reading

• Four obstacles to hybrid cloud storage – and possible solutions

  We look at obstacles to hybrid cloud storage, such as complexity, a need for object storage, application suitability, and cost, with potential ways to mitigate the problems  Continue Reading

• 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

• Storage suppliers put Kubernetes platforms centre stage

  How to orchestrate the orchestrator? Storage suppliers’ Kubernetes management platforms aim to meet storage and data protection challenge in containerised application environments  Continue Reading

• Five key points on file locking vs object locking

  We look at file vs object storage locking mechanisms, how different forms of storage ensure data consistency, and especially how object storage is tackling the challenge  Continue Reading

• 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

• Cloud storage cost challenges and how to tackle them

  We look at cloud capacity procurement pitfalls, forecasting challenges, the danger of over-buying, supplier lock-in, deciphering billing and resizing capacity when projects finish  Continue Reading

• 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

• How open source is shaping data storage management

  Open source data storage offers a great deal of flexibility, but unlocking its benefits will require strong technical resources to meet requirements such as stability, high availability and security  Continue Reading

• Refrigeration firm freezes legacy backup for one Cohesity cluster

  France-based Clauger had reached limits of capacity and complexity with multi-supplier legacy backup, so moved to one Cohesity cluster and gained restores that took mere minutes  Continue Reading

• 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

• Object storage: How research institute got 850TB for €150,000

  French scientific research institute had its budgets cut and to meet the new cost constraints, it settled on Swarm software-defined object storage from DataCore  Continue Reading

• 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

• 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

• Cloud repatriation: Five reasons to repatriate data from cloud

  We look at key drivers of cloud repatriation, including cost, compliance, issues around latency and data gravity, reversing poorly planned moves to the cloud, and supplier failure  Continue Reading

• 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

• Hybrid cloud: Five key questions in 2021

  We look at key need-to-knows about hybrid cloud in 2021, including how it is defined, key use cases, the main pitfalls and where it’s heading  Continue Reading

• French Caisse uses NetApp to move backups to object storage

  State financial arm wanted to move backups held on NAS file-based storage to object storage, so stuck with NetApp StorageGRID and achieved near-seamless migration  Continue Reading

• 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

• 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

• Five things you need to know about cloud file services

  We look at cloud file services, which provide a file system-like architecture that gives users access to file data wherever they are, just as if it were a local NAS filer  Continue Reading

• Dell, NetApp and Pure: Healthy results on Covid easing

  Dell’s still top of the storage supplier pile with midrange arrays doing well, but meanwhile NetApp and Pure are making gains on the rise of public cloud  Continue Reading

• DNA storage promises 10 million times storage capacity boost

  A datacentre that fits in the palm of your hand? However, right now, DNA storage is an expensive chemical process that researchers are trying to make a practical proposal  Continue Reading

• Storage-as-a-service: Consumption models from the big six

  We look at the big six storage makers’ consumption model offers, which allow customers to pay for on-prem hardware and cloud storage capacity on a pay-per-use basis, within limits  Continue Reading

• Briefing: Cloud storage performance metrics

  We look at some of the key storage performance metrics that determine what your applications will get from cloud storage, plus cloud essentials that are beyond simple measurement  Continue Reading

• 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

• Cloud storage APIs: What are they and what can be done with them?

  We look at the kinds of application programming interfaces (APIs) available to expose cloud storage to applications, from SME-targeted solutions to higher-end hooks  Continue Reading

• 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

• What digital transformation means for data storage

  We survey the key planks of digital transformation and look at the storage technologies emerging to support it, such as NVMe and QLC flash, hyper-converged infrastructure and cloud storage  Continue Reading

• Container-native storage: A definition, and what to ask suppliers

  We look at container-native storage – aka cloud-native storage – what defines it, and its benefits as a way of bringing persistent Kubernetes storage to containerised applications  Continue Reading

• Computational storage: What is it? Why now, what for, who from?

  Computational storage is an emerging architecture category, in which compute is put near storage to address I/O bottlenecks resulting from large volumes of data  Continue Reading

• Backup failure: Four key areas where backups go wrong

  We look at the key ways that backups can fail – via software issues, hardware problems, trouble in the infrastructure and good old human error – and suggest ways to mitigate them  Continue Reading

• 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

• Where now for storage? Hitachi, IBM and Pure Storage

  Part II: Storage supplier strategy in the cloud era: Hitachi, IBM and Pure Storage. We snapshot the big six hardware makers, as they take things to the cloud and as-a-service models  Continue Reading

• Where now for storage? Dell EMC, NetApp and HPE

  Part I: Storage supplier strategy in the cloud era: Dell EMC, NetApp and HPE. We snapshot the big six hardware makers, as they take things to the cloud and as-a-service models  Continue Reading

• 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

• 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

• 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

• Five key points about unstructured data storage on-prem and cloud

  We look at unstructured data, the myriad forms of data it comprises and the key storage options available, which include NAS and object storage on-prem and in the cloud  Continue Reading

• Five key benefits of AWS, Azure and Google Cloud file storage

  The big three offer cloud file storage that can ease hybrid cloud operations, with consistency between cloud and on-premise as well as greater enterprise application compatibility  Continue Reading

• 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

• 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

• 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

• 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

• 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

• A peek into the future of storage

  Flash-based storage is here to stay and will continue to be enhanced, even as helium and DNA are being primed for use in the distant future  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

• 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 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 flash storage: SSD options from AWS, Azure and GCP

  We look at the flash storage options available from the big three cloud providers – Amazon Web Services, Microsoft Azure and Google Cloud Platform – that can help narrow the gap between on-site and cloud workloads  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

• 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

• 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

• 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

• 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

• 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

• 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

• 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

• 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

• 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

• 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

• How APAC firms can slay the storage management beast

  The data deluge and compliance requirements are shaping how Asia-Pacific firms are approaching storage management issues in the age of cloud  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

• 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

• Docker backup: Deciding what to protect and how

  Docker is a simplified form of virtualisation whose popularity has rocketed. We look at the key decisions about what parts of Docker you need to backup and how to do it  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

• 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