ViRSO IT Storage Helps CIOs Achieve elusive balance

ViRSO IT Storage Helps CIOs Achieve elusive balance

In the storage world, IOPS is often viewed as a key metric in the application productivity equation. In the real world, where customers have finite budgets and a driving imperative to optimize value for every dollar they spend, storage performance is as much about economics as it is about IOPS. Our storage systems come in several varieties individually designed to address differing customer needs. Some of our solutions include Solid state drives (SSDs), nearline SAS and Enterprise SATA. Dell’s enterprise-class SSDs are designed around enterprise application I/O (input/output) requirements with the primary attribute focus being on random I/O performance and reliability. SSDs offer exceptional performance; however, compared to hard disk drives (HDDs) they have much less capacity per drive, they are much more expensive and have a write endurance limit.

The Achilles’ heel of SSDs are their write performance. To rewrite an area of an SSD that has already been written, the data must be erased and then written. In order to overcome a portion of the write performance penalty, Dell enterprise SSD found across Dell PowerEdge, EqualLogic and Dell EMC, all employ a practice known as over-provisioning of Flash. This practice keeps native Flash capacity beyond the user-defined capacity, and utilizes the additional space as a scratch pad of sorts to quickly put down application write data on areas of Flash that are already in an erased state. The SSDs perform clean-up functions of this over-provisioned Flash space during time periods typically not impacting application performance. Other offering from us include SAS hard drives which are true dual-port full duplex capable devices. This means that both ports on a Serial Attached SCSI (SAS) drive can simultaneously send or receive data (host dependent).

Nearline Serial Attached SCSI (SAS), available in PowerEdge servers and PowerVault enclosures, is an enterprise hard drive combining the head, media and rotational speed of traditional enterprise-class Serial ATA (SATA) drives with the fully capable SAS interface typical of 10K/15K rpm SAS drives. These features provide a clear edge over enterprise SATA drives.

The biggest challenge on the model support availability. The expectation from any CIO is at least for 7 years. How much does Dell provide the same?

Currently, customers have had to choose between technologies that supports either the traditional or new IT approach, limiting their ability to get the most out of their IT solutions. We believe that customers need technology that supports both IT approaches and the flavors in between. We believe that a customer should be Future Ready when they are looking at deploying a certain solution. From our deep knowledge of both traditional and new style IT, we have created a new suite of future-ready data centre solutions designed to make traditional IT more efficient and new paradigm IT more practical. Dell’s future-ready IT model includes technology solutions that are more tightly integrated, bringing server, storage and networking closer together, modular to scale to meet business demand, and software-defined to automate and simplify IT operations and service delivery. The result is customers can gain the Google-, Facebook- and Amazon-like flexibility and efficiency, while working with their existing IT investments, unleashing unprecedented growth and innovation.

Depending on customer workloads and their own personal preferences, ViRSO IT categories customers into two types: one who wants to continue to evolve their current or traditional IT systems and the other prefers a new approach that embraces new models of IT delivery, such as software-defined models, convergence and hyper convergence. Our answer to both is to help customers take an approach that balances current and new IT. We want to make traditional IT more efficient, deliver new IT faster. We want to offer customers with choice and value no matter where they start or what workload they run.

Combination of FLASH disk with SAS & SATA disks will help to increase storage performance with low cost disks. Please explain the performance of Dell with respect to the above-said combination.

SAS and SATA solid-state storage devices offer significantly better performance over standard rotating HDDs. However, their performance can be limited by the latency and bottlenecks inherent in the driver stack. A single Express Flash drive can achieve up to 10.5x more database transactions per second than HDD storage. PCIe solid-state storage (SSS), on the other hand, is directly connected to the PCIe bus. The bus provides a direct connection between the PCIe-SSS and the CPU, as well as system memory. This tightly coupled connection provides a storage environment that has lower latency than a SAS/SATA SSD. For instance, our solution Dell PowerEdge Express Flash PCIe-SSD is a high-performance storage device built with enterprise-class NAND flash designed for solutions requiring low latency, high input/output operations per second (IOPS) and enterprise-class storage reliability and serviceability.

Dell Storage leverages state-of-the-art technologies to help organizations maximize efficiency while reducing storage costs by converging servers and storage. Some businesses are expanding their existing SAN and NAS infrastructure while others are deploying software-defined storage (SDS) solutions with hypervisor-integrated systems and open-source solutions. To meet the demands of I/O intensive workloads, our unique Data Progression technologies enable performance-optimized flash at the price of a hard disk solution.

We help achieve a balance of price and performance with virtualized or traditional IT environments that can leverage the investments already made, thereby reducing TCO. Our solutions are even ideal for your cold data storage as it allows organizations to reduce the overall cost of supporting their data.


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