Netgear RNDX400E ReadyNAS NVX User Manual - Page 35

Understanding Volume Management, Overview of RAID Levels and X-RAID2

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ReadyNAS NVX Business Edition User Manual • UPnP provides a means for UPnP-enabled clients to discover the ReadyNAS NVX Business Edition on your LAN. Understanding Volume Management Figure 2-20 The ReadyNAS NVX Business Edition family offers two RAID volume technologies: Flex-RAID, utilizing the industry-standard RAID levels 0, 1, and 5; and X-RAID2, NETGEAR-patented expandable RAID technology. Your system comes preconfigured with X-RAID2. However, you can switch between the two modes through a factory default reset process described in "Configuring RAID" on page 6-8." Overview of RAID Levels and X-RAID2 This section provides a basic overview of RAID and X-RAID2. RAID is an acronym for Redundant Array of Independent Disks. It can store data in a way that writes extra data derived from the original data across the array organized so that the failure of one (sometimes more) disks in the array will not result in loss of data. A RAID level determines how data is kept redundant. The most popular ones being levels 0, 1, and 5. RAID 0 do not provide redundancy. Also, RAID arrays can be faster to write to and read from than a single disk. These various approaches entail different trade offs of protection against data loss, capacity, and speed. Setting Up and Managing Your ReadyNAS NVX v1.1, February 2009 2-15

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ReadyNAS NVX Business Edition User Manual
Setting Up and Managing Your ReadyNAS NVX
2-15
v1.1, February 2009
•
UPnP
provides a means for UPnP-enabled clients to discover the ReadyNAS NVX Business
Edition on your LAN.
Understanding Volume Management
The ReadyNAS NVX Business Edition family offers two RAID volume technologies: Flex-RAID,
utilizing the industry-standard RAID levels 0, 1, and 5; and X-RAID2, NETGEAR-patented
expandable RAID technology. Your system comes preconfigured with X-RAID2. However, you
can switch between the two modes through a factory default reset process described in
“Configuring RAID”
on page 6-8.”
Overview of RAID Levels and X-RAID2
This section provides a basic overview of RAID and X-RAID2. RAID is an acronym for
Redundant Array of Independent Disks. It can store data in a way that writes extra data derived
from the original data across the array organized so that the failure of one (sometimes more) disks
in the array will not result in loss of data. A RAID level determines how data is kept redundant.
The most popular ones being levels 0, 1, and 5. RAID 0 do not provide redundancy. Also, RAID
arrays can be faster to write to and read from than a single disk. These various approaches entail
different trade offs of protection against data loss, capacity, and speed.
Figure 2-20