SAN Storage Area Network Technology and With Difference Between SAN And NAS
A Storage Area Network (SAN) is a high-speed network that provides multiple servers access to consolidated pools of shared, block-level storage.
SAN technology addresses advanced enterprise storage demands by providing a separate, dedicated, highly scalable high-performance network designed to interconnect a multitude of servers to an array of storage devices.
The storage can then be organized and managed as cohesive pools or tiers.
A SAN enables an organization to treat storage as a single collective resource that can also be centrally replicated and protected, while additional technologies, such as data deduplication and RAID, can optimize storage capacity and vastly improve storage resilience compared to traditional direct attached storage (DAS)
Organizations of all sizes use Storage Area Networks (SANs) to increase storage utilization rates (i.e., multiple hosts accessing the storage devices), improve application performance and availability, and to heighten security and data protection capabilities.
By presenting storage devices to hosts such that they appear to be locally attached storage, SANs also facilitate the presentation of storage to users
Enterprise Hard Drives and SSD are High performance drives that are made to be installed in servers, where they are placed next to other drives of the same type.
They are made to sustain the frequent vibration caused by the neighboring spinning drives.
They are validated for 24/7 operation and we provide the support needed.
Area Network Storage Technology
Computer memory and local storage resources might not provide enough storage, storage protection, multiple-user access, speed, or performance for enterprise applications.
So, most organizations employ some form of a SAN in addition to network-attached storage (NAS) for improved efficiency and better data management.
Traditionally, only a limited number of storage devices could attach to a server, limiting a network’s storage capacity.
But a SAN introduces networking flexibility, enabling one server or many heterogeneous servers across multiple data centers to share a common storage utility.
The SAN eliminates the traditional dedicated connection between a network file server and storage and the concept that the server effectively owns and manages the storage devices eliminating bandwidth bottlenecks.
A SAN eliminates single points of failure to enhance storage reliability and availability.
A SAN is also optimal for disaster recovery (DR) because a network might include many storage devices, including disk, magnetic tape, and optical storage.
The storage utility might also be located far from the servers that it uses.
QNAP’s Network Attached Storage (NAS) are systems that consist of one or more hard drives that are constantly connected to the internet. The QNAP becomes your backup “hub”, or storage unit that stores all your important files and media such as photos, videos and music.
SAN and NAS Storage
Both SAN and network attached storage NAS are methods of managing storage centrally and sharing that storage with multiple hosts (servers).
However, NAS is Ethernet-based, while SAN can use Ethernet and Fiber Channel.
In addition, while SAN focuses on high performance and low latency, Network Attached Storage NAS focuses on ease of use, manageability, scalability, and lower total cost of ownership (TCO).
Unlike SAN, NAS storage controllers partition the storage and then own the file system.
Effectively this makes a NAS server look like a Windows or UNIX/Linux server to the server consuming the storage.
Unlike direct-attached storage (DAS), network-based storage allows more than one computer to access it through a network, making it better for data sharing and collaboration.
Its off-site storage capability also makes it better suited for backups and data protection.
- Network of multiple devices
- Block storage system
- Fibre Channel network
- Optimized for multiple users
- Faster performance
- Highly expandable
- Higher cost and complex setup
NAS is often a single device made up of redundant storage containers or a redundant array of independent disks (RAID).
SAN storage can be a network of multiple devices, including SSD and flash storage, hybrid storage, hybrid cloud storage, backup software and appliances, and cloud storage.
It’s important to choose the right one that suits your use cases.
- Single storage device or RAID
- File storage system
- TCP/IP Ethernet network
- Limited users
- Limited speed
- Limited expansion options
- Lower cost and easy setup
We Will help you to choosing the Servers and Storage and Witches and Routers and Firewall that’s fit your organization through Being Dell EMC Partner , also we can help you upgrade your Servers and storage with Hard Drives and Memory and Network Adapters & CPU and Riser Cards and Drive Cables and Power Supply and Graphic Cards and Raid & HBA Cards , Also you can get all information about Hyperconverged Infrastructure HCI and Dell EMC VxRail For SAP HANA