Run mission-critical enterprise apps seamlessly in the cloud with this industrial-strength block storage. A modern data experience for applications helps unify your data so you can innovate fast — in the cloud and on premises. After transitioning SAP workloads to Pure Storage, seven enterprises reported an average annual net benefit. Data backup and disaster recovery are critically important — but with Purity ActiveCluster, we go much further.
Pure delivers industry-leading availability while enabling comprehensive data protection across the enterprise. Pure enables businesses to design applications that take advantage of the agility and innovation of multiple clouds at the same time.
Big data is at the center of the AI revolution and your data demands a next-gen storage solution that can drive time-to-insight. Embrace data-driven analytics and demand a different approach to how data is stored and delivered. A modern data experience is the key that enables organizations to achieve efficiencies, lower costs, and an end to data silos and migrations. Work with the best minds in the business. Purity Assure is resiliency that never quits. Purity delivers proven That means your data is always available, always performing, and always protected — with no performance loss.
Non-disruptive maintenance, expansion, and upgrading of everything — all without performance impact. Hello weekends. Designed for When a storage array hosts s of applications, downtime is not an option.
Clustered controller design allows for the complete failure of a controller or any controller component without impacting operations. Simply unplug a failed controller, cable up a new one, and the FlashArray is back to full-availability, all without any performance loss. Non-Disruptive Capacity Expansion — Flash capacity can be added online and becomes instantly available. Non-Disruptive Controller Upgrades — Performance can be expanded, even across generations, with no downtime.
A Guide to RAID Storage Technology
Non-Disruptive Hardware Replacement — Maintenance or replacement of any failed component is performed online. Non-Disruptive Software Upgrades — New features and flash technology advancements are easily enabled with software upgrades that are not only non-disruptive to availability, but also to the performance of applications.
This enables all maintenance operations to be performed with zero performance loss. RAID-HA protects against concurrent dual-drive failure, and re-builds around failures automatically within minutes. Flash is more vulnerable to bit errors than hard drives.
RAID-HA treats performance variability just like a failure, and uses parity to work around potential bottlenecks to deliver consistent latency. Cloud Data Services. Cloud Data Services Run mission-critical enterprise apps seamlessly in the cloud with this industrial-strength block storage.
Know Where Your Arrays Reside Globally Streamline your array administration and migration with granular location-based metadata.
Applications A modern data experience for applications helps unify your data so you can innovate fast — in the cloud and on premises. Data Protection You Can Count On Pure delivers industry-leading availability while enabling comprehensive data protection across the enterprise.In years gone by, Nutanix solutions were constrained to being built around a limited number of node types.
With that said, the ROI and TCO for the Nutanix solutions back then were still more often than not favourable compared to 3-tier but these days we only have more and more good news for prospective and existing customers. In short, Oracle leads the world in misleading and intimidating customers into paying more for licensing than what they need to.
The Oracle Parking Garage…. Next we would assess the storage capacity, resiliency and performance requirements and decide how many and what configuration storage only nodes are required. Because Virtual Machines cannot run on storage only nodes, the Oracle Virtual Machines cannot and will never run on any other CPU cores other than the two Compute Only nodes therefore you would be in compliance with your licensing.
A Guide to RAID Storage Technology
In short, the results show by doubling the number of nodes from 4 to 8, the performance almost exactly doubled while delivering low read and write latency. This is in fact the minimum supported configuration for Compute Only Environments to ensure minimum levels of resiliency and performance. The beauty of the Nutanix examples above is while they look like a traditional 3-tier, we avoid the legacy SAN problems including:.
Difficulty in scaling performance with capacity 3. Inability to increase resiliency without adding additional Silos of storage i. With Compute Only being supported by AHV, we also help customers avoid the unnecessary complexity and related operational costs of managing ESXi deployments which have become increasingly more complex over time without significantly improving value to the average customer who simply wants high performance, resilient and easy to manage virtualisation solution.
Obviously moving to AHV would be ideal but for those who cannot for whatever reasons can still benefit from Storage Only nodes which provide increased storage performance and resiliency to the Virtual machines running on ESXi.
How does Nutanix compare to a leading all flash array? For more information about Nutanix Scalability, Resiliency and Performance, checkout this multi-part blog series. Nutanix is more like the top of the range model from a car manufacturer with different customer requirements. Nutanix has options ranging from high end business critical application deployments to lower end products for ROBO, such as Nutanix Xpress model.
Steve and I agreed that our TCO report needed to give the benefit of the doubt to Pure Storage as we do not claim to be experts in their specific storage technology. We also decided that as experts in Nutanix Enterprise Cloud platform and employees of Nutanix, that we should minimize the potential for our biases towards Nutanix to come into play. The way we tried to achieve the most unbiased view possible is to give no benefit of the doubt to the Nutanix Enterprise Cloud solution.
On the other hand, the benefit of the doubt has been given to Pure Storage at every opportunity in this comparison including the following:.
Both parties declined. With that said, the configuration DeepStorage chose does not reflect an optimally designed Nutanix solution.Redundant Array of Independent Disks RAID is a storage technology that combines several physical hard disks to create a logical drive with better performance and reliability than individual units.
It increases the speed of storing and accessing data while preventing loss of data and downtimes.
The three scientists from the University of California, Berkeley, were trying to address challenges that often resulted in data losses. Today, their creation - which has been improved and enhanced - enables organizing data in multiple disks, and reconstruction of missing information in case of a hardware failure of one or more disks. Although traditionally designed for servers, RAID is also used in workstations, storage-intensive computers and other applications that require data security, high transfer speeds, and large storage capacities.
Typical applications where fast read and write operations for large files are important include video editing, CAD, graphic design, etc. RAID is a technology for configuring and supporting various combinations of physical hard drives, with the aim of improving reliability, performance, and capacity.
It consists of multiple physical disks and a controller to configure and manage them. There are different RAID schemes to spread or replicate data across different member disks. Each of the configurations provides a unique balance between capacity, performance, and resilience.
Generally, the three main concepts are striping, mirroring, and parity. Each of these has its merits and limitations, but can be combined for better performance. Striping spreads the data evenly across multiple physical disks, mirroring replicates data on two or more disks, while parity uses raw data to calculate and store parity information for error correction. By writing or accessing information simultaneously in striping, the RAID improves performance while mirroring allows the data to be accessed from remaining good drives in case of a disk failure.
RAID is ideal for high reliability applications and those requiring larger storage or high data transfer speeds. All websites and critical online and offline applications should use RAID to improve performance, prevent data loss or downtimes. Most modern servers utilize fast SSD drives hence may not require further performance improvements.
However, there is need to add redundancy to ensure reliability and availability of the website in case of a disk failure. For servers using older slow drives, it may be necessary to use a RAID level that combines performance improvement and data redundancy. HDD hosting guide. Usually, at least one of the drives is configured for parity and all the data copied here has an extra bit that helps in recovering data in case of a failure in one of the disks.
However, it does not eliminate the need for an offsite data backup, just in case of a virus attack or disaster. Generally, most providers use the RAID for both there servers and the backup systems. This increases the level of data protection and speed of recovering data in case a problem with any the disks in the server or backup storage.The phrase redundant array of inexpensive disks RAID -- later changed to redundant array of independent disks -- emerged in the late s, when mechanical hard disk drives HDDs were the primary storage media.
The primary purposes for RAID were to improve performance and provide fault tolerance. Storage systems in general have moved on from applying RAID at the whole-drive level, and redundancy is now applied to data at a finer granularity.
There are three key concepts in RAID: mirroringin which data is written simultaneously to two separate drives; stripingin which data is split evenly across two or more drives; and parityin which raw binary data is passed through an operation to calculate a binary result, or parity block, used for redundancy and error correction.
Striping, with no redundancy or parity, is often used to increase performance. Striping with parity or double parity strengthens data protection. With most RAID types, storing redundant data blocks enables the system to reconstruct the lost information if one or more drives fail.
When an HDD fails, the entire drive is lost. With an SSD, only a part or parts of the drive may fail. As a result, some vendors have weighed customized approaches to RAID for protection against a drive failure. Dell EMC claimed that prior RAID algorithms had to consider how to keep data contiguous to avoid disk drive head seeks, whereas XDP presumes random-access media, such as flash, and is able to lay out and read back data with greater efficiency. RAID-3D treats a performance delay as a drive failure and uses parity to address bottlenecks and facilitate consistent latencyaccording to Pure Storage.Virtual Volumes: Introduction
Pure Storage claimed that RAID-3D also uses independent checksums and dedicated parity to detect and address bit error. Helix spreads redundant copies of data across the drives in a storage clusterrather than a limited RAID set, according to the vendor. In large data centersthe improved efficiency of SSDs compared with mechanical HDDs can also reduce the cooling cost, both in terms of simpler cooling systems and lower electric bills.
Please check the box if you want to proceed. COVID has become a serious global threat and is rapidly becoming an issue for business continuity.
Pandemic planning can help Here are five tips to update your crisis response This guide to crisis management and free template can help your business respond to an unplanned emergency, such as the current Unitrends Helix automates the tasks of monitoring, remediating and maintaining backup servers.
While tedious, they are necessary Cloud backup is a good option for small businesses, especially for a remote work environment. Choices range from file syncing toAs I was writing in Junegoing against the grain has its merits and can bring the most unexpected seeds to grow and blossom.
Pure Storage have been quiet and yet they did not sleep on their laurels, far from it. Pure Storage have understood well the challenges and have completely re-thought the way Flash memory is addressed and managed in their FlashCard Modules and with their FlashCard Software.
Some of these challenges were already present among the reasons that drove Pure Storage to take radical design decisions for the FlashBlade. Others inefficiencies to be addressed included the small data pipe between compute and flash maximum of 1 queue vs theoretical maximum of queues for NVMe and the inherent design of current SSD drives where functions such as the Flash Translation Layer FTLGarbage Collection and many others exist in each and every single drive.
Flash management functions that were local to flash drives are now executed globally, across the entire FlashArray domain. This allows for direct, raw flash access to the software. Three raw capacities will be available: 2. At this speed of operation, the transport layer between the array and the compute nodes becomes the bottleneck. Expansion shelves are also available, though they can take up to 24 modules 12 per capacity pack.
We asked Pure Storage about potential downtime during the upgrade process.
Pure informed us that the process would be fully online and seamless to the users. What a time to be alive! The ability of upgrading online and without downtime the FlashArray controllers as well as the DirectFlash Modules is nothing short of a tour de force with flawless execution.
Customers who invested in Pure Storage hardware and subscribe to Evergreen Storage will appreciate the commitment. April 11, This content is 3 years old. Please, read this page keeping its age in your mind. FlashArray Data Services. FlashArray Upgrade Options. We use anonymized Google Analytics cookies to analyze the traffic and trends on this website. We're not collecting any personal information, we don't care about your habits, your gender, your sexual orientation and your shopping interests.
Accept Cookies Reject Cookies.Wow, after an entire week off with the holidays, I am back and excited about the many happenings in the storage world. One of the more prominent news was the announcement of Pure Storage launching its enterprise storage array build entirely with flash-based solid state drives.
In addition to that, there were other start-ups who were also offering SSDs storage arrays. At the same time, we in the storage industry knows that no piece of data are alike. They can be large, small, random, sequential, accessed frequently or infrequently and so on. I was already tempted to write my pessimism on Pure Storage when something interesting caught my attention. Besides the usual marketing jive of sub-milliseconds, predictable latency, green messaging, global inline deduplication and compression and built-in data integrity into its Purity Operating Environment POEI was very surprised to find the team behind Pure Storage.
POE focuses on 3 key storage services which are. Everything that they have done is based on SSDs. By trading off IOPS which SSDs have plenty since they are several times faster than conventional spinning disksa larger usable capacity is achieved.
One note that was mentioned was that traditional RAID and especially the parity-based RAID levels were designed in the beginning to protect against an entire device failure. However, in SSDs, the failure does not necessarily occur in the entire device. Because of the way SSDs are built, the failure hotspots tend to happen at the much more granular bit level of the SSDs. I spoke a bit of storage tiering earlier in this article because every corporation employs storage tiering to be financially responsible.
Factors we must also taken into account is the rack-space savings using the smaller profile disks of SSDs, the power-savings costs of SSDs versus conventional HDD-based enterprise storage arrays. The tides are changing for the storage industry and it is good to see a start-up like Pure Storage boldly coming forth to announce their backing for SSDs. But more importantly, they are driving innovations to rethink of how we build storage arrays.
This model is common throughout the storage industry and supports storage operations well under normal conditions. Challenges can arise with planned and unplanned events as the failure domains for these models are designed for availability with performance loss.
In failure scenarios storage performance is negatively impacted as available resources are tasked with serving a workload that is greater than their ability to deliver at normal levels due to the reduced hardware capacity.
Both of these conditions can have a significant impact on performance. The impact of a controller is measured as the number of failures within the availability fault domain. Say your traditional array provides 30, IOPS at less than 15ms of latency. This is a rhetorical question. Evening and weekend maintenance windows exist exclusively to mitigate the impact of reduced levels of service. With this said, maintenance windows are facing an extinction event as IT departments support a greater number of applications and services that have an always-available requirement.
This shift in enterprise IT is the direct byproduct of our increasing expectations as consumers, as over the years we have come to demand an always-available online experience. When you migrate an application or consolidate a set of applications onto an all-flash storage array, there is no room for a drop in service level. The key elements that enable this capability include…. The Pure Storage FlashArray builds upon the common two-node controller model with one significant architectural difference.
The NVRAM used to acknowledge writes with low latency and to enable services like adaptive data reduction is located in in the first two storage shelves and not in the storage controllers. With storage controllers designed to solely provide CPU, memory and IO ports the system is equipped with a set of non-disruptive storage operations that support SSD capacity expansion, the upgrade of the Purity O.
The architecture is rather elegant in its simplicity. This provides the same level of controller resources to service IO as those available during normal operating conditions.
In addition, Purity adapts to the workload conditions. To ensure customer experiences these settings are non-configurable. They are enabled in all performance benchmarks and customer deployments. While Flash is exponentially more performant than disk, it can still impact performance in failure scenarios.
Single parity RAID technologies expose datasets to data loss during failure and rebuild events. This risk forces arrays with these implementations to prioritize array resources on the reconstruction of data over the serving of IO.
This antiquated design can impact performance and exposes customers to complete loss of data should a bad cell be encountered during the rebuild process. Again, Purity will adapt to workloads, prioritizing the serving of IO should load spike during the rebuild process.
Together, the stateless controller architecture, the ability to ensure CPU and memory resources, and the zero-impact benefits of RAID-HA produce a non-disruptive storage architecture that enables customers to adopt new software capabilities, address bugs, and expand capacity and performance without scheduling maintenance windows. With that said Pure Storage engineers govern CPU and memory resource utilization with a multitude of software and hardware mechanisms. One of the advantages of developing a storage platform from the ground up includes hindsight; the ability to design an architecture optimized to meet the modern needs of an always-on operational model.
Pure Storage has changed the concept of non-disruptive storage operations for all-flash storage with availability previously only seen with virtual infrastructures! Applications and their users never experience drops in performance and storage administrators rejoice in regaining their evenings and weekends back. Flash is changing the datacenter and I hope I have helped explain how Pure Storage is making this a reality.