Storage, next to server hardware, is pretty commoditized and probably the least exciting thing in your datacenter. However, not properly assessing your storage needs and requirements can be the difference between a great app or resume generating event. This session will cover topics such as: Why you may not need all flash, SAN is not just NAS spelled backwards, leveraging cloud storage, why RAID is not a sound backup solution, and cutting through the marketing to make sense of it all.
Firebird and RAID document discusses choosing the right RAID configuration for a Firebird server. It covers the basics of different RAID levels like mirrored RAID, parity RAID, JBOD, and RAID 0. It provides examples of performance comparisons between hardware RAID, software RAID, and SSD using inserts, updates, and selects. The conclusion is that for a database server, a mirrored RAID implementation will generally outperform a parity RAID configuration with the same specifications due to lower write penalties.
David Pechon is an IT professional with experience in virtualization, storage, and identity management. He has worked for the US Army, banks, and consulting companies. While RAID provides data redundancy, it does not replace the need for backups, as RAID cannot protect against accidental or intentional deletion of data. Storage technologies have evolved from drum memory and floppy disks to today's hybrid arrays, all-flash arrays, and converged infrastructure solutions. The differences between SANs and NAS depend on factors like latency requirements, data access patterns, distance between servers and storage, and administrative needs. Newer solutions aim to provide the benefits of both SAN and NAS through unified storage and software-defined storage.
This document discusses various types of storage devices and backup media. It covers floppy disk drives (FDD), hard disk drives (HDD), optical drives including CD, DVD, and Blu-Ray drives. It also discusses removable storage options such as tape backup devices, solid state drives like thumb drives and SD cards, and external hard drives and CD-RW drives. Within each section, it provides details on the purpose and components of the different storage types as well as their advantages and disadvantages.
RAID (Redundant Array of Independent Disks) uses multiple disk drives to increase performance and availability. It provides parallelism for higher performance and redundancy for data availability. Different RAID levels offer different tradeoffs between performance, availability, and cost. RAID levels include RAID 0 for striping without redundancy, RAID 1 for mirroring, RAID 3 and 5 for striping with parity redundancy.
RAID (Redundant Array of Inexpensive Disks) systems allow for storing large amounts of data across multiple smaller disks for redundancy and performance. The document discusses several RAID levels including:
- RAID 0 provides data striping but no redundancy.
- RAID 1 provides full data mirroring across two disks for redundancy.
- RAID 2-4 provide striping and varying levels of parity-based redundancy.
- RAID 5 stripes both data and parity blocks across disks for better write performance than RAID 4.
- RAID 10 combines striping of RAID 0 and mirroring of RAID 1 for the highest performance.
RAID (Redundant Array of Independent Disks) is a storage technology that combines multiple disk drive components into a logical unit. It provides data integrity, fault tolerance, and increased performance or capacity compared to a single drive. There are different RAID levels that implement striping and mirroring of data across physical disks in various ways to achieve different balances of performance and data reliability. Common RAID levels include RAID 0, 1, 5 and 10. The document discusses these RAID levels and their advantages and disadvantages for different use cases and applications like servers, databases and workstations.
1. RAID (Redundant Array of Independent Disks) is a data storage virtualization technology that combines multiple physical disk drive components into one or more logical units for the purposes of data redundancy, performance improvement, or both.
2. There are different RAID levels that provide redundancy through techniques like mirroring, parity, or a combination of both. The most common levels are RAID 0, 1, 5 and 10 but there are also less common levels like RAID 2-4 and 6.
3. The presenter discusses the advantages and disadvantages of various RAID levels for improving performance, reliability, and fault tolerance of disk storage systems. RAID can help address issues like increasing storage capacity
RAID (Redundant Array of Independent Disks) is a technique that combines multiple disk drives into a logical unit to provide protection, performance, or both. It increases storage capacity and availability while improving performance. RAID uses data striping, mirroring, and parity techniques across disk drives to achieve these benefits. Common RAID levels include RAID 0, which stripes data without fault tolerance; RAID 1, which uses disk mirroring; and RAID 5, which uses distributed parity across all disks.
Firebird and RAID document discusses choosing the right RAID configuration for a Firebird server. It covers the basics of different RAID levels like mirrored RAID, parity RAID, JBOD, and RAID 0. It provides examples of performance comparisons between hardware RAID, software RAID, and SSD using inserts, updates, and selects. The conclusion is that for a database server, a mirrored RAID implementation will generally outperform a parity RAID configuration with the same specifications due to lower write penalties.
David Pechon is an IT professional with experience in virtualization, storage, and identity management. He has worked for the US Army, banks, and consulting companies. While RAID provides data redundancy, it does not replace the need for backups, as RAID cannot protect against accidental or intentional deletion of data. Storage technologies have evolved from drum memory and floppy disks to today's hybrid arrays, all-flash arrays, and converged infrastructure solutions. The differences between SANs and NAS depend on factors like latency requirements, data access patterns, distance between servers and storage, and administrative needs. Newer solutions aim to provide the benefits of both SAN and NAS through unified storage and software-defined storage.
This document discusses various types of storage devices and backup media. It covers floppy disk drives (FDD), hard disk drives (HDD), optical drives including CD, DVD, and Blu-Ray drives. It also discusses removable storage options such as tape backup devices, solid state drives like thumb drives and SD cards, and external hard drives and CD-RW drives. Within each section, it provides details on the purpose and components of the different storage types as well as their advantages and disadvantages.
RAID (Redundant Array of Independent Disks) uses multiple disk drives to increase performance and availability. It provides parallelism for higher performance and redundancy for data availability. Different RAID levels offer different tradeoffs between performance, availability, and cost. RAID levels include RAID 0 for striping without redundancy, RAID 1 for mirroring, RAID 3 and 5 for striping with parity redundancy.
RAID (Redundant Array of Inexpensive Disks) systems allow for storing large amounts of data across multiple smaller disks for redundancy and performance. The document discusses several RAID levels including:
- RAID 0 provides data striping but no redundancy.
- RAID 1 provides full data mirroring across two disks for redundancy.
- RAID 2-4 provide striping and varying levels of parity-based redundancy.
- RAID 5 stripes both data and parity blocks across disks for better write performance than RAID 4.
- RAID 10 combines striping of RAID 0 and mirroring of RAID 1 for the highest performance.
RAID (Redundant Array of Independent Disks) is a storage technology that combines multiple disk drive components into a logical unit. It provides data integrity, fault tolerance, and increased performance or capacity compared to a single drive. There are different RAID levels that implement striping and mirroring of data across physical disks in various ways to achieve different balances of performance and data reliability. Common RAID levels include RAID 0, 1, 5 and 10. The document discusses these RAID levels and their advantages and disadvantages for different use cases and applications like servers, databases and workstations.
1. RAID (Redundant Array of Independent Disks) is a data storage virtualization technology that combines multiple physical disk drive components into one or more logical units for the purposes of data redundancy, performance improvement, or both.
2. There are different RAID levels that provide redundancy through techniques like mirroring, parity, or a combination of both. The most common levels are RAID 0, 1, 5 and 10 but there are also less common levels like RAID 2-4 and 6.
3. The presenter discusses the advantages and disadvantages of various RAID levels for improving performance, reliability, and fault tolerance of disk storage systems. RAID can help address issues like increasing storage capacity
RAID (Redundant Array of Independent Disks) is a technique that combines multiple disk drives into a logical unit to provide protection, performance, or both. It increases storage capacity and availability while improving performance. RAID uses data striping, mirroring, and parity techniques across disk drives to achieve these benefits. Common RAID levels include RAID 0, which stripes data without fault tolerance; RAID 1, which uses disk mirroring; and RAID 5, which uses distributed parity across all disks.
NetServ - CD / DVD Server + NAS Storage – PrimeArrayPrime Array
The document summarizes the NetServ CD/DVD Server and NAS Storage system from PrimeArray Systems. It can store up to 4,000 CDs/DVDs and 16TB of general files. It offers RAID 0, 1, 5, 6 and 10 storage, along with features like hot spare drives, tape backup software, CD/DVD library management software, and remote data synchronization. Pricing and configuration options are available by contacting PrimeArray Systems.
This document discusses RAID (Redundant Array of Independent Disks), which combines multiple disk drives into a logical unit to provide data redundancy, integrity, and improved performance. It describes the main RAID levels (0, 1, 2, 3, 4, 5) and their characteristics such as striping, mirroring, parity, and performance. RAID provides benefits like fault tolerance, increased throughput, and capacity but also has disadvantages like additional hardware costs and complexity.
Performance evolution of raid is a presentation slide about RAID, Its classification, Importance,Concept about RAID,Standard Raid Level,Implementation of Raid, Performance and Advantages Comparison among RAID Levels.
Hope It will be helpfull..................
This document provides an overview of different RAID levels including RAID 0, 1, 5 and 10. It explains how each RAID level works in terms of disk configuration and data storage. It also discusses hardware considerations like SCSI and ATA disks as well as backup media options.
Introduzione alla nuova famiglia di NAS SnapServerPaolo Rossi
Introduzione alle soluzione NAS SnapServer di Overland Storage e Tandberg Data.
L'agenda prevede un introduzione a Sphere3D, alle soluzioni NAS del portafoglio, carattersitiche tecniche, funzionalit', configurazioni e competition.
La presentazione e' stata utilizzata per un Webinar in Italiano gratuito. Da oggi il portafoglio delle soluzioni Sphere3D, Overland Storage e Tandberg Data comprende soluzioni di storage, backup, archiving, cloud, virtualizzazione e mobile.
This document provides an overview of data protection using RAID (Redundant Array of Independent Disks). It defines RAID as combining multiple disk drives into a logical unit for data redundancy and performance. The document outlines different RAID levels including RAID 0 (striping without parity), RAID 1 (disk mirroring), RAID 5 (striping with distributed parity), and RAID 6 (dual distributed parity). It also discusses striping, mirroring, parity, and compares advantages and disadvantages of implementing RAID for data protection.
RAID (Redundant Array of Independent Disks) distributes data across multiple disks to improve performance and provide redundancy. The common characteristics of RAID levels are that multiple physical disks act as a single logical disk, data is distributed across disks, and redundant parity information is used to recover data if a disk fails. RAID level 0 stripes data without parity for increased speed but no fault tolerance, while RAID level 1 uses mirroring to provide redundancy by writing all data to two disks.
Redundant Arrays of independent disks is a family of techniques that use multiple disks that are organized to provide high performance and/or reliability
Raid- Redundant Array of Inexpensive DisksMudit Mishra
The basically RAID was to combine multiple, small inexpensive disks drive into an array of disk drives which yields performance exceeding that of a Single, Large Expensive Drive(SLED). Additionally this array of drives appear to the computer as a single logical storage unit or drive.
This document discusses different RAID levels for combining multiple disk drives into a logical unit for storage. It defines RAID and explains its purpose is to provide data redundancy, fault tolerance, increased storage capacity and performance. The document then covers RAID levels 0 through 5, describing their ideal uses, advantages, and disadvantages for striping, mirroring, parity and error correction approaches.
Raid is a storage system that combines multiple disks into an array to provide benefits like enhanced data integration, fault tolerance, and increased storage capacity or processing power. There are several common Raid types like Raid 0, 1, 5, and 10. If a Raid fails, it is important to turn off power immediately to prevent further data loss. An excellent data recovery software like iFinD Data Recovery can then be used to try restoring the lost data from the Raid array. The software allows scanning and recovering files by selecting the failed Raid device.
This document discusses different RAID levels including RAID 1, RAID 2, RAID 3, RAID 4, and RAID 5. RAID 1 uses disk mirroring to duplicate all data across two disks. RAID 2 uses bit-level striping with Hamming codes for error correction. RAID 3 uses byte-level striping with a dedicated parity disk. RAID 4 uses block-level striping with a dedicated parity disk. RAID 5 spreads data and parity across all disks rather than dedicating a disk to parity. RAID 5 provides improved write performance over RAID 4 and is commonly used today for its balance of performance, redundancy and cost effectiveness.
This document defines RAID and its levels. RAID stands for redundant array of inexpensive disks and combines multiple disk drives into a logical unit to improve performance and availability. It discusses the need for RAID to keep up with increasing computing speeds. RAID provides parallelism, load balancing, and redundancy through mirroring or striping with parity. The document then explains the different RAID levels from RAID 0 to RAID 6, covering their minimum drive requirements, fault tolerance, read/write performance, and capacity utilization.
This document provides an overview of different RAID levels from 0 to 6. It describes the key characteristics of each level including minimum drive requirements, data protection mechanisms, performance advantages and disadvantages, and recommended applications. RAID levels range from striped arrays without parity (RAID 0) to more advanced techniques with dual parity protection (RAID 6). The document contains diagrams and explanations of how each RAID level works to provide varying balances of performance, capacity, and fault tolerance.
RAID is the use of multiple disks and data distribution techniques to get better Resilience and/or Performance.
RAID stands for:
Redundant
Array of
Inexpensive / Independent
Disks
RAID (Redundant Array of Independent Disks) is a storage technology that combines multiple disk drives into a logical unit. It distributes data across several RAID levels for fault tolerance and improved performance. In 1987, researchers first defined RAID levels 1-5, which standardized how data is striped and mirrored across disks. Today there are several standard RAID levels that provide different balances of performance, capacity, and fault tolerance through techniques like data striping, mirroring, and parity.
Raid the redundant array of independent disks technology overviewIT Tech
RAID (Redundant Array of Independent Disks) is a technology allowing a higher level of storage reliability and performance from disk-drive components via the technique of arranging them into arrays.
A RAID array is a configuration with multiple physical disks set up to use RAID architecture like RAID 0, RAID 1, RAID 5, etc. While the RAID array distributes data across multiple disks, it is considered as a single disk by the server operating system.
Learn more...
RAID (Redundant Array of Independent Disks) is a data storage virtualization technology that combines multiple physical disk drive components into a single logical unit to improve performance and provide redundancy. There are different RAID levels that distribute and protect data across disks in various ways. RAID 0 stripes data across disks for increased speed but provides no data protection. RAID 1 mirrors the same data onto two disks, providing fault tolerance if one disk fails. Higher RAID levels like 3, 4, and 5 provide redundancy through parity data stored on dedicated disks while still allowing for parallel I/O performance.
VMworld 2014: Software-Defined Data Center through Hyper-Converged Infrastruc...VMworld
The document discusses hyper-converged infrastructure solutions from VMware called EVO:RAIL and EVO:RACK. EVO:RAIL provides a hyper-converged appliance that is pre-integrated with VMware software to simplify deployment and management of software-defined data centers. EVO:RACK is a technology preview of a hyper-converged infrastructure solution for data center scale deployments using standard rack-mounted servers. The solutions are available through qualified partners and aim to make it faster and easier to setup and operate a software-defined data center.
NetServ - CD / DVD Server + NAS Storage – PrimeArrayPrime Array
The document summarizes the NetServ CD/DVD Server and NAS Storage system from PrimeArray Systems. It can store up to 4,000 CDs/DVDs and 16TB of general files. It offers RAID 0, 1, 5, 6 and 10 storage, along with features like hot spare drives, tape backup software, CD/DVD library management software, and remote data synchronization. Pricing and configuration options are available by contacting PrimeArray Systems.
This document discusses RAID (Redundant Array of Independent Disks), which combines multiple disk drives into a logical unit to provide data redundancy, integrity, and improved performance. It describes the main RAID levels (0, 1, 2, 3, 4, 5) and their characteristics such as striping, mirroring, parity, and performance. RAID provides benefits like fault tolerance, increased throughput, and capacity but also has disadvantages like additional hardware costs and complexity.
Performance evolution of raid is a presentation slide about RAID, Its classification, Importance,Concept about RAID,Standard Raid Level,Implementation of Raid, Performance and Advantages Comparison among RAID Levels.
Hope It will be helpfull..................
This document provides an overview of different RAID levels including RAID 0, 1, 5 and 10. It explains how each RAID level works in terms of disk configuration and data storage. It also discusses hardware considerations like SCSI and ATA disks as well as backup media options.
Introduzione alla nuova famiglia di NAS SnapServerPaolo Rossi
Introduzione alle soluzione NAS SnapServer di Overland Storage e Tandberg Data.
L'agenda prevede un introduzione a Sphere3D, alle soluzioni NAS del portafoglio, carattersitiche tecniche, funzionalit', configurazioni e competition.
La presentazione e' stata utilizzata per un Webinar in Italiano gratuito. Da oggi il portafoglio delle soluzioni Sphere3D, Overland Storage e Tandberg Data comprende soluzioni di storage, backup, archiving, cloud, virtualizzazione e mobile.
This document provides an overview of data protection using RAID (Redundant Array of Independent Disks). It defines RAID as combining multiple disk drives into a logical unit for data redundancy and performance. The document outlines different RAID levels including RAID 0 (striping without parity), RAID 1 (disk mirroring), RAID 5 (striping with distributed parity), and RAID 6 (dual distributed parity). It also discusses striping, mirroring, parity, and compares advantages and disadvantages of implementing RAID for data protection.
RAID (Redundant Array of Independent Disks) distributes data across multiple disks to improve performance and provide redundancy. The common characteristics of RAID levels are that multiple physical disks act as a single logical disk, data is distributed across disks, and redundant parity information is used to recover data if a disk fails. RAID level 0 stripes data without parity for increased speed but no fault tolerance, while RAID level 1 uses mirroring to provide redundancy by writing all data to two disks.
Redundant Arrays of independent disks is a family of techniques that use multiple disks that are organized to provide high performance and/or reliability
Raid- Redundant Array of Inexpensive DisksMudit Mishra
The basically RAID was to combine multiple, small inexpensive disks drive into an array of disk drives which yields performance exceeding that of a Single, Large Expensive Drive(SLED). Additionally this array of drives appear to the computer as a single logical storage unit or drive.
This document discusses different RAID levels for combining multiple disk drives into a logical unit for storage. It defines RAID and explains its purpose is to provide data redundancy, fault tolerance, increased storage capacity and performance. The document then covers RAID levels 0 through 5, describing their ideal uses, advantages, and disadvantages for striping, mirroring, parity and error correction approaches.
Raid is a storage system that combines multiple disks into an array to provide benefits like enhanced data integration, fault tolerance, and increased storage capacity or processing power. There are several common Raid types like Raid 0, 1, 5, and 10. If a Raid fails, it is important to turn off power immediately to prevent further data loss. An excellent data recovery software like iFinD Data Recovery can then be used to try restoring the lost data from the Raid array. The software allows scanning and recovering files by selecting the failed Raid device.
This document discusses different RAID levels including RAID 1, RAID 2, RAID 3, RAID 4, and RAID 5. RAID 1 uses disk mirroring to duplicate all data across two disks. RAID 2 uses bit-level striping with Hamming codes for error correction. RAID 3 uses byte-level striping with a dedicated parity disk. RAID 4 uses block-level striping with a dedicated parity disk. RAID 5 spreads data and parity across all disks rather than dedicating a disk to parity. RAID 5 provides improved write performance over RAID 4 and is commonly used today for its balance of performance, redundancy and cost effectiveness.
This document defines RAID and its levels. RAID stands for redundant array of inexpensive disks and combines multiple disk drives into a logical unit to improve performance and availability. It discusses the need for RAID to keep up with increasing computing speeds. RAID provides parallelism, load balancing, and redundancy through mirroring or striping with parity. The document then explains the different RAID levels from RAID 0 to RAID 6, covering their minimum drive requirements, fault tolerance, read/write performance, and capacity utilization.
This document provides an overview of different RAID levels from 0 to 6. It describes the key characteristics of each level including minimum drive requirements, data protection mechanisms, performance advantages and disadvantages, and recommended applications. RAID levels range from striped arrays without parity (RAID 0) to more advanced techniques with dual parity protection (RAID 6). The document contains diagrams and explanations of how each RAID level works to provide varying balances of performance, capacity, and fault tolerance.
RAID is the use of multiple disks and data distribution techniques to get better Resilience and/or Performance.
RAID stands for:
Redundant
Array of
Inexpensive / Independent
Disks
RAID (Redundant Array of Independent Disks) is a storage technology that combines multiple disk drives into a logical unit. It distributes data across several RAID levels for fault tolerance and improved performance. In 1987, researchers first defined RAID levels 1-5, which standardized how data is striped and mirrored across disks. Today there are several standard RAID levels that provide different balances of performance, capacity, and fault tolerance through techniques like data striping, mirroring, and parity.
Raid the redundant array of independent disks technology overviewIT Tech
RAID (Redundant Array of Independent Disks) is a technology allowing a higher level of storage reliability and performance from disk-drive components via the technique of arranging them into arrays.
A RAID array is a configuration with multiple physical disks set up to use RAID architecture like RAID 0, RAID 1, RAID 5, etc. While the RAID array distributes data across multiple disks, it is considered as a single disk by the server operating system.
Learn more...
RAID (Redundant Array of Independent Disks) is a data storage virtualization technology that combines multiple physical disk drive components into a single logical unit to improve performance and provide redundancy. There are different RAID levels that distribute and protect data across disks in various ways. RAID 0 stripes data across disks for increased speed but provides no data protection. RAID 1 mirrors the same data onto two disks, providing fault tolerance if one disk fails. Higher RAID levels like 3, 4, and 5 provide redundancy through parity data stored on dedicated disks while still allowing for parallel I/O performance.
VMworld 2014: Software-Defined Data Center through Hyper-Converged Infrastruc...VMworld
The document discusses hyper-converged infrastructure solutions from VMware called EVO:RAIL and EVO:RACK. EVO:RAIL provides a hyper-converged appliance that is pre-integrated with VMware software to simplify deployment and management of software-defined data centers. EVO:RACK is a technology preview of a hyper-converged infrastructure solution for data center scale deployments using standard rack-mounted servers. The solutions are available through qualified partners and aim to make it faster and easier to setup and operate a software-defined data center.
Research and technology explosion in scale-out storageJeff Spencer
A view of the directions storage is taking in science & technology from Ryan Sayre, technical strategist in the office of the CTO for EMC Isilon, using examples from recent work in life science genomics and other industries taking advantage of the combination of extreme computing (HPC) and big data. As presented at the Bull sponsored Science & Innovation 2013 conference Westminster.
Digital Pragmatism with Business Intelligence, Big Data and Data VisualisationJen Stirrup
Contact details:
Jen.Stirrup@datarelish.com
In a world where the HiPPO’s (Highest Paid Person’s Opinion) is final, how can we use technology to drive the organisation towards data-driven decision making as part of their organizational DNA? R provides a range of functionality in machine learning, but we need to expose its richness in a world where it is made accessible to decision makers. Using Data Storytelling with R, we can imprint data in the culture of the organization by making it easily accessible to everyone, including decision makers. Together, the insights and process of machine learning are combined with data visualisation to help organisations derive value and insights from big and little data.
Big data is driving changes in leadership approaches. Leaders must envision how to make their organizations more customer-centric by using data and innovation networks. They also need to enable big data operations by establishing the right technology and organizational structures. Further, leaders must empower all employees to take action based on data insights. Finally, leaders must energize their organizations to become big data driven by constantly advocating changes and using data to reward performance.
Future Information Growth And Storage Device Reliability 2007Andrei Khurshudov
This document discusses the history and future of data storage. It begins with early examples of data storage using materials like stone and paper. It then outlines the development of data storage technologies over time, from magnetic tapes and disks to modern solid state drives. The document notes that storage capacity and data growth are increasing exponentially, and projections estimate yottabytes of storage being produced by 2050. Reliability is also discussed, as are the tribological factors that impact hard disk drive reliability.
This document provides an overview of various storage technologies and concepts, including:
1) Disk array controllers that manage I/O to improve performance and protect against disk failures. Tape libraries evolved to provide common power and handling for multiple tape drives.
2) Network attached storage (NAS) allows file sharing across a network by making remote files appear local. Storage arrays combine disk arrays and provide common management of storage capacity.
3) Storage area networks (SANs) connect computer systems and storage using a switched network infrastructure, allowing storage access without direct physical connections. Disk and virtual tape libraries use disk arrays for backup and recovery.
This document provides an overview of various data storage technologies including RAID, DAS, NAS, and SAN. It discusses RAID levels like RAID 0, 1, 5 which provide data striping and redundancy. Direct attached storage (DAS) connects directly to servers but cannot be shared, while network attached storage (NAS) uses file sharing protocols over IP networks. Storage area networks (SAN) use dedicated storage networks like Fibre Channel and iSCSI to provide block-level access to consolidated storage. The key is choosing the right solution based on capacity, performance, scalability, availability, data protection needs, and budget.
The Pendulum Swings Back: Converged and Hyperconverged EnvironmentsTony Pearson
The document discusses the history of data storage technologies and how the approach is shifting back towards converged and hyperconverged systems. It provides an overview of converged infrastructure solutions like IBM's VersaStack, which combines Cisco servers and networking equipment with IBM storage systems. The document also summarizes IBM's Storwize and FlashSystem storage platforms which can be used in converged and hyperconverged environments.
This document provides an overview of the key differences between storage area networks (SANs) and network attached storage (NAS). It explains that a NAS is a single network storage device that operates on data files, while a SAN connects multiple storage devices that can share data. The document also discusses how NAS and SAN connect and communicate with other devices on the network and how they are sometimes used together in a unified SAN configuration.
It's the End of Data Storage As We Know It (And I Feel Fine)Stephen Foskett
Technological change is finally coming to storage, and it will wipe away the architecture we've come to know over the last few decades. Say goodbye to the "do it all" Fibre Channel SAN storage array and get ready for converged infrastructure, distributed storage, alternative attachments like PCIe, and top-of-rack flash! In this session, Stephen Foskett will explain why this change is inevitable and how it will shake out. You won't recognize what's coming, but it will be faster, cheaper, and more integrated than ever! Delivered at
Direct attached storage (DAS) involves connecting storage devices like hard disk drives directly to a server without a storage network. This provides exclusive access to the disks for the server but has limitations in scalability and availability. Storage area networks (SANs) address these issues by connecting multiple servers and storage devices via a high-speed dedicated network using fiber channel technology. This allows for centralized management of storage that can be dynamically allocated and accessed simultaneously by multiple servers.
In this presentation, we will discuss in details about challenges in managing the IT infrastructure with a focus on server sizing, storage capacity planning and internet connectivity. We will also discuss about how to set up security architecture and disaster recovery plan.
To know more about Welingkar School’s Distance Learning Program and courses offered, visit:
http://www.welingkaronline.org/distance-learning/online-mba.html
Varrow datacenter storage today and tomorrowpittmantony
The document summarizes changes in datacenter storage technologies. It discusses typical storage types used today like DAS, SAN, and NAS and how new technologies are changing them. Technologies discussed include PCIe flash, all-flash arrays, denser drives, InfiniBand, and cloud storage. It suggests storage architectures may move away from RAID with new flash-based solutions and caching algorithms optimized for flash performance rather than spinning disks.
Storage virtualization seminar discusses breaking connections between physical and logical storage through virtualization. It covers volume management, file systems, virtualizing the SAN and NAS, and polling attendees on their virtualization usage. Benefits discussed include pooling for efficiency and scalability, improved performance and availability through technologies like snapshots and replication, and enabling disaster recovery of virtual machine images. Downsides and costs are considered.
SAN vs NAS vs DAS: Decoding Data Storage SolutionsMaryJWilliams2
Discover the advantages and differences of SAN, NAS, and DAS storage solutions. With our detailed comparison and insights, you'll be able to determine which data storage system suits your needs best.
For more information visit: https://stonefly.com/blog/san-vs-nas-vs-das-a-closer-look/
A presentation for FY and SY student about basic knowledge of NAS which includes :
1. Introduction of NAS
2. Applications
3. Benefits
4. Advantages
5. Disadvantages
6. NAS vs SAN
7. Future of NAS
This document provides an introduction to storage concepts for those new to the topic. It begins with a brief history of storage and how it evolved from being inside computers to outside networks and arrays. It then covers five key concepts: that storage exists outside computers, the differences between blocks and files, the importance of SCSI, different RAID levels, and the three types of storage arrays. The document aims to explain the basic foundations of modern storage systems and how all the pieces fit together.
Fulcrum Group Storage And Storage Virtualization PresentationSteve Meek
The document discusses storage solutions and SANs. Exponential data growth is expected to continue challenging data protection efforts. Different storage types fit different business needs. By understanding storage design and an organization's needs, storage virtualization may be a good fit. SANs can help with general server needs, virtualization, and disaster recovery/backup needs. Planning is key to deploying storage in a centralized way.
The document discusses data storage and cloud computing. It provides an overview of different types of data storage, including direct attached storage (DAS), network attached storage (NAS), and storage area networks (SANs). It also describes different classes of cloud storage, such as unmanaged and managed cloud storage. The document outlines some of the challenges of cloud storage and how cloud providers create virtual storage containers to manage data storage in the cloud.
The document provides an overview of storage technology options including network attached storage (NAS), storage area networks (SANs), and discusses specific NAS and SAN products. It highlights the key features of an iSCSI SAN brick platform including software for snapshots, replication, and continuous data protection. Appliance strategies and partnerships are also summarized.
This Solutions Brief provides information about high-growth opportunities, All-Flash products from Nimbus, and resources available to help turn them into profits.
ProServer - Direct network attached CD / DVD Server and LoaderPrime Array
ProServer is a versatile direct network attach CD/DVD server and tower in one! It allows an organization to easily share large CD/DVD libraries over their network by hard disc caching. For more information, please contact us. PrimeArray Systems, Inc. 1500 District Avenue, Burlington, MA 01803, Call 800-433-5133, 978-455-9488, Visit https://www.primearray.com/
002-Storage Basics and Application Environments V1.0.pptxDrewMe1
Storage Basics and Application Environments is a document that discusses storage concepts, hardware, protocols, and data protection basics. It begins by defining storage and describing different types including block storage, file storage, and object storage. It then covers basic concepts of storage hardware such as disks, disk arrays, controllers, enclosures, and I/O modules. Storage protocols like SCSI, NVMe, iSCSI, and Fibre Channel are also introduced. Additional concepts like RAID, LUNs, multipathing, and file systems are explained. The document provides a high-level overview of fundamental storage topics.
The science of automated storage tiering distills down to monitoring I/O behavior, determining frequency of use, then dynamically moving blocks of information to the most suitable class or tier of storage device. DataCore™ SANsymphony™-V software automatically manages your blocks to best allocate your storage.
Similar to Spinning Brown Donuts: Why Storage Still Counts (20)
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3. WHO DOES THIS GUY THINK HE IS?
Started IT career with an enlistment in the US Army in 1997 as an Information Systems
Operator/Analyst. Stationed at Fort Polk, LA; Youngsan Army Garrison in Seoul, South Korea;
and Fort Bragg, NC. (never airborne, instead a dirty nasty leg)
Worked for a loan servicing company and three different banks in SE Louisiana, as well as a
consulting business from a small MSP in New Orleans to a large systems integrator based in
Denver.
Started working at Sparkhound in February 2014, specializing in virtualization, storage,
messaging and identity management
Held certifications from Microsoft, VMware, NetApp, CommVault and SyncSort (now Catalogic
Software).
Married to my wife Clare of 8 years with two children and currently resides in Ponchatoula, LA
Avid Chicago Cubs fan; enjoys fish, fine beers and grilling outdoors.
Fun fact: My face was on the Today show in 1991 for a full five seconds when Joe Garagiola
visited my school at Fort Stewart, GA.
david.pechon@sparkhound.com
@davidpechon
http://linkedin.com/in/davidpechonjr
4. … AND WHY IS HE SO EXCITED ABOUT
STORAGE?
As workloads become increasingly virtualized, storage becomes more and
more of a potential storage bottleneck, many technologies have been
produced to reduce impact.
The amount of data generated has grown exponentially with no signs of
slowing down.
Information is an asset to any organization. There are needs to make sure its
secure and available at all times.
5. BRIEF HISTORY OF DATA STORAGE
1948 Williams
Tube
Early 1950s – Drum
Memory
1951 -
Uniservo
1956 – IBM
350
First HDD
1972 – Data
Cassette
1976 – Floppy
disks
1983 – ST-506
First PC HDD
1990s Optical Media 2010s Cloud
2000s USB Flash
1725-1940s: Punch Cards
7. RAID IS NOT A BACKUP
Anyone who thinks RAID is a backup should be swatted on the nose with
a rolled up newspaper….
…and laughed at too.
RAID is used to span storage load across spindles and/or survive a disk
failure. RAID will not protect against rouge admins, stupid admins,
stupid users, users in general, users looking to get out of congressional
hearings, viruses, Decepticons, the guys the Go-Bots fought against,
vampires, fire, earthquakes, nuclear apocalypse …. well you get the idea.
8. STUPID IS AS STUPID DOES
One official wrote me … “there are criminal penalties for destroying federal
records, which makes sense, including liability for negligence for not taking
the necessary steps to protect files, including a federal requirement to
backup data. This doesn’t happen. All email servers are backed up with
something called ‘RAID’ (Redundant Array Of Independent Disks), and it’s
nearly impossible for something to delete the files, and that even if that
were to happen they would not be gone forever.”
Source:
D. Giordano (June 16, 2014) Attkisson On Missing IRS Documents: If The Emails Really Are Lost,
‘That’s Quite A Story In Itself’. Retrieved from http://philadelphia.cbslocal.com/2014/06/16/attkisson-on-
missing-irs-documents-if-the-emails-really-are-lost-thats-quite-a-story-in-itself/
9. BREAK IT DOWN … BARNEY STYLE
RAID does not protect against deletion, be it accidental or intentional.
RAID does not protect against data corruption.
Some RAID levels will not protect you against disk loss, all will not protect
you against other catastrophic failures.
Remember Kids!! RAID is not
a backup!
11. IN THE BEGINNING...
STORAGE AREA
NETWORK
Storage Device
A SAN shares virtual disks from an
array to a host. In this example, a
fabric is being used. Storage is
presented to a host as raw block
storage.
DIRECT ATTACHED
STORAGE
Direct attached storage is basically
disks attached directly to a host
via a storage controller card.
While performance can be great,
flexibility is low in creating islands
of storage.
A NAS hosts files over network
shares. Storage is mapped to
hosts. Was created to share
information between computers
over standard data networks.
NETWORK
ATTACHED
STORAGE
Storage Device
File System
(CIFS, NFS,
etc.)Network
Storage
12. NAS PROTOCOLS
Server Message Block (SMB)
a.k.a.: Common Internet File System (CIFS)
Network File System (NFS)
Primarily used by Windows to share files over a network.
Supported by MacOS. Can be used by UNIX/Linux distributions
with third party tools like Samba
Developed by Sun Microsystems to share files with other Solaris
systems. Primarily used by UNIX and UNIX like operating
systems. Windows Server 2012 can act as an NFS server natively.
Latest version SMB 3.0 supports hardware acceleration and
multipathing.
Latest version NFS 4.1 supports multipathing and supports
parallel writes for applications like high performance computing
(pNFS)
Hyper-V 3.0 can use SMB 3.0 shares to store VMs in a cluster.
Only NAS protocol supported to store Microsoft Exchange
mailbox databases on virtual disks
NFS 3 is supported by all vSphere versions. NFS 4.1 is supported
by ESXi 6/vSphere 6.
13. SAN PROTOCOLS
Fibre Channel iSCSI
Requires special FC switching and cards called Host Bus
Adaptors or HBAs. Configured in a fabric configuration to
minimize failure points and increase data paths.
Uses existing Ethernet/IP infrastructure, can use either
software initiators or HBAs.
Developed to go beyond the SCSI limits for disk devices and
tape drives.
Developed as a lower cost alternative to Fibre Channel
Lossless protocol to minimize storage latency. Beholden to the loss packets that can occur on an IP network
Great scalability and can traverse greater distances by use of
dark fiber. In some cases up to 100 kilometers (a tad over 62
miles)
While it can go over IP networks, not recommended to go over
wide area networks.
14. BEST OF BOTH WORLDS - FCOE
FCoE switches can carry both Fibre Channel
and IP networking on the same switches,
reducing complexity, cabling, and devices.
Converged Network Adaptors replace specific
HBAs and can also carry IP and Fibre Channel
protocols.
Popular in converged architecture sets such as
FlexPod, Vblock, ActiveSystem, CloudMatrix,
etc.
Uses the same architecture and networking practices as Fibre Channel. Ethernet
replaces the physical layer.
16. SO WHAT'S THE DIFFERENCE?
• You would need a SAN if…
• You need lower latency disk access over a lossless protocol.
• You are using higher transaction intensive systems like database management
applications, enterprise resource planning, or email systems like Exchange Server
• You want to eliminate of single points of failure by use of a fabric network and multiple
data paths.
• You need to traverse over a campus or even a metro area over fiber.
• You would need a NAS if..
• You need lower administrative overhead without the need for special network
configuration outside of setting up a VLAN or two.
• You want to share files directly to users from the array, eliminating traditional file
servers.
• You want to cluster storage to scale out performance, not just capacity. (scale-out NAS)
18. WHAT IF I WANT BOTH?
Unified storage systems that can host both SAN and NAS protocols from the
same array, simplifying management and allowing more flexibility.
NAS gateways are systems that use a LUN from a SAN to host file protocols.
These can be systems that are built for that purpose or a general purpose
operating system running on a server.
20. HYBRID ARRAYS
Hybrid arrays combine the use of traditional magnetic disk and solid state.
The idea came from the
method of storage tiering,
where blocks of “hot” data
are moved to faster disks.
While effective for a
while, it was basically
trying to squeeze
blood from a stone.
Performance was still
limited by mechanical
disk speed and
scheduling of blocks
to be written and
when they were
deemed hot or cold
15k RPM SAS RAID 10
10k RPM SAS RAID 6
7.2k RPM SATA RAID 6
HOT!
COLD
WARM
HOT!
WARM
WARM
WARM
COLD
21. HYBRID ARRAYS
Hybrid arrays combine the use of traditional magnetic disk and solid state.
In most hybrid arrays, hot data is cached
in SSDs or PCI flash in the storage array.
Some arrays will use DRAM as a cache
level. Data isn’t moved but the array
will use metadata to point reads to the
cache, known as “cache hits”
Some hybrid arrays have the ability to use SSDs as a write cache, to ingest
large amounts of data quickly, then move it to slower storage.
STORAGE ARRAY
SSD
SERVER
SSD
22. ALL FLASH ARRAYS
Its an array with all flash drives….
…duh.
On a serious note, what sets
vendors apart are features.
Violin Memory is an example
of one such array that doesn’t
do any special space
efficiency, but makes very
dense solid state arrays.
Pure Storage sacrifices some
raw performance for space
efficiencies deduplication and
compression.
Some traditional storage
vendors like HP and NetApp,
and added all-flash support to
their existing storage arrays.
23. CONVERGED SYSTEMS
VMware brought virtualization to commodity x86 computing, bringing the
benefits of mainframes to lesser expensive hardware.
Fibre Channel over Ethernet allowed datacenters to reduce the amount of
networking devices in the datacenter.
Cisco UCS platforms had decoupled various hardware settings from
systems, allowing you to replace WWN, MAC addresses, BIOS settings,
etc. to a new node either hot or cold
Unified storage systems such as NetApp FAS and EMC VNX allowed for all
storage protocols under one system.
This led to the concept of converged systems, where compute, network,
storage and hypervisor systems were combined under a validated model,
giving the customer one number to call for support, or known as “one
throat to choke.”
24. SOFTWARE DEFINED STORAGE
Software Defined Storage is the ability to get the features of a storage
array in a virtual appliance rather than hardware or run a storage OS on
their own hardware.
This has given birth to two disruptive technologies…
25. HYPERCONVERGED
Hyperconverged systems cluster the local storage on virtual hosts by
using a storage VM or by the hypervisor itself.
HYPERVISOR
Storage VM
SCSI Controller
SSD
SSD
SATA
SATA
SATA
SATA
VMI/O
HYPERVISOR
Storage VM
SCSI Controller
SSD
SSD
SATA
SATA
SATA
SATA
VMI/O
HYPERVISOR
Storage VM
SCSI Controller
SSD
SSD
SATA
SATA
SATA
SATA
VMI/O
Virtual
storage
cluster
This technology has proven to be
excellent for applications that linearly
scale such as big data and virtual
desktop infrastructure.
26. CLOUD STORAGE
Cloud storage can be in the
form of user accessible
storage such as OneDrive or
Dropbox
It can be a cold data tier, as
used by Microsoft
StorSimple
It can be used as a
replication or backup target,
similar to NetApp Cloud
ONTAP.
Or replicate your
entire
infrastructure for
disaster recovery
with services like
vCloud Air or
Hyper-V/Azure
replication.
28. TYPES OF SOLID STATE DRIVES
Single level cell flash or SLC NAND* memory stores one bit per cell. It can endure more writes than
any other flash memory available and is usually the most expensive.
Multi-level cell or MLC flash can do two to three bits per cell but has a shorter lifespan than SLC.
Enterprise MLC or eMLC will consist of chips of higher quality, much like how enterprise drives are
more reliable than consumer grade. They cost more than consumer MLC SSD drives but less than
SLC SSDs.
*NAND being a transistor logic gate, which is a negation of the AND operator. NOR logic gates are used in some SLC flash where the logic gate results in the negation of an OR operator.
29. ALL FLASH OR HYBRID?
It all depends!
Using metrics to determine cost, such as $/GB or $/IOPS.
Do you need sub millisecond latency?
Do you want the benefits of flash with a cost somewhat similar to disk?
Not all workloads need all flash arrays.
31. BIG DATA
Big Data is basically taking
petabytes of unstructured
and structured data and
turning it into something
useful.
Storage frameworks like
Hadoop make this possible.
Hadoop requires an array of
nodes that are usually only
needed on demand.
Amazon EWR and Azure
HDInsight are cloud services
specifically for provisioning
Hadoop clusters in seconds
and you only pay for
running a workload.
33. HERO NUMBERS
IOPS stands for Input/Output Operatoins Per Second. Most numbers quoted are based on 4 kilobyte block size and
sequential reads, which most drives and arrays can perform quite well. Most applications like SQL Server will
require a 64k block size. So this figure readjusted for 64k sequential read would be 12,500 IOPS.
Deduplication is the method of removing redundant blocks of storage to save space. Metadata is used to
reconstruct data from the deduplicated blocks. This depends all about how much redundant data is being stored. If
you have 10 desktops with nothing else installed, you pretty much have the same bits written 10 times, hence the
10:1 dedupe ratio. Databases for instance may only see 10-30% space savings with deduplication.
NL-SAS or Nearline SAS are SATA drives that can use SAS backplanes. They’re no faster per spindle than SATA drives.
I can imagine Paul Thurott saying something like that.
34. IN CONCLUSION
Sizing storage properly can make or break your line of business applications. A lower
cost hybrid array may be sufficient over all flash. You may want to consider cloud
storage over an on premise array for cold storage.
Never let a vendor tell you how you should run your systems on their storage. A good
storage consultant should be able to size an environment not only on your applications
but through the entire lifecycle of the appliance.
Always ask for a “bake off”, meaning you can test your workloads on their gear before
signing a purchase order.
Be wary of “hero numbers”, again using a bake off to get a much better picture on
how their system will work for you.
Editor's Notes
SLIDE PURPOSE: Describe our Market Differentiators – our end-to-end business approach and driving a meaningful impact
SPIEL: How do we make an impact? We make it happen with consultants who think far beyond tomorrow, solutions that push the boundaries of technology’s promise, and support that frees you to focus on what you do best.