ReadyNAS OS 6.0

Basic Volume and RAID Concepts

To get the most out of your ReadyNAS storage system, it is helpful to understand the basics of volumes and RAID. Understanding these concepts is the first step to making good decisions about how to configure, manage, and use your ReadyNAS storage system.

Volumes

In the most general sense, volumes are data storage devices. Your computer treats an internal hard drive as a volume. It also treats a portable USB thumb drive as a volume.

Volumes can be either physical or logical. Usually, the term physical volume refers to a hard disk drive. When this term is used in this way, a two-bay storage system can have up to two physical volumes (hard disk drives). A four-bay storage system can have up to four physical volumes (hard disk drives). A six-bay storage system can have up to six physical volumes.

The term logical volume refers to the way that you divide, or partition, your storage space. For example:

Each logical volume can correspond to a hard disk drive.

A logical volume can be made up of more than one hard disk drive.

In this manual, the term volume refers to a logical volume. The terms hard disk drive and disk refer to a physical volume.

RAID

Your ReadyNAS storage system allows you to configure your hard disks using one of the many RAID technologies.

RAID is short for redundant array of independent disks. RAID is a storage technology that balances data protection, system performance, and storage space by determining how the storage system distributes data. Many different ways of distributing data have been standardized into various RAID levels. Each RAID level offers a tradeoff of data protection, system performance, and storage space. For example, one RAID level might improve data protection but reduce storage space. Another RAID level might increase storage space but also reduce system performance.

Your ReadyNAS storage system supports X-RAID2TMmode, a proprietary single-volume RAID architecture that is easy to administer, and Flex-RAID mode, which allows you to format your disks in a variety of industry-standard RAID levels. Both RAID modes allow you to hot-swap disks without powering down and automatically expand your volumes to accommodate larger-capacity disks when you replace smaller-capacity disks.

When you power on your system for the first time or if you reset your system to its factory default settings, the optimal RAID mode and level are automatically selected for you based on the number of disks that are installed. You can also configure the RAID settings manually (see Change RAID Mode on page 21).

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NETGEAR 312, 104, 314 software manual Basic Volume and RAID Concepts, Volumes

104, 314, 312 specifications

NETGEAR, a leader in networking technology, offers a range of high-performance switches designed to meet the demands of modern networking environments. Among these are the NETGEAR 312, 314, and 104 switches, each catering to specific operational needs while providing robust features and technologies.

The NETGEAR 312 switch is a part of the managed switch category and focuses on delivering exceptional performance for small to medium-sized businesses. It features 12 Gigabit Ethernet ports, ensuring high-speed connectivity for devices such as computers, printers, and servers. It supports advanced Layer 2 network management capabilities, allowing users to configure VLANs for efficient traffic management and segmentation. The 312 also incorporates Quality of Service (QoS) functionalities that prioritize critical data traffic, improving overall network performance. With its energy-efficient design and fanless operation, the switch operates quietly while reducing power consumption.

Moving on to the NETGEAR 314, this switch expands upon the features of the 312 by offering 16 Gigabit Ethernet ports, ideal for larger networks requiring more connections. The 314 also supports Layer 2 management, making it easier for network administrators to create and manage VLANs. Additionally, it comes equipped with advanced security features, including MAC address filtering and port security, which help safeguard the network from unauthorized access. The switch supports link aggregation, enhancing bandwidth capacity and redundancy. Its compact design enables easy integration into various network configurations.

Lastly, the NETGEAR 104 switch serves as an entry-level option, perfect for home offices or small businesses looking for reliable basic connectivity. It offers 10 Fast Ethernet ports, providing ample connectivity for basic networking needs. The plug-and-play functionality allows for easy setup and deployment without the need for extensive configuration. The 104 is also energy-efficient, equipped with features that automatically adjust power consumption based on port activity, ensuring minimal energy waste.

In summary, NETGEAR's 312, 314, and 104 switches showcase a diverse range of features tailored to different networking needs. From advanced management and security features to energy-efficient designs, these switches empower users to build efficient, high-performing networks. With NETGEAR's commitment to quality and innovation, these switches stand out as reliable solutions for various networking challenges.