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RAID levels share the following properties: * Several different physical disks are combined and accessed as a compound element. Under Linux, this is done by the driver for multiple devices, also known as /dev/md*. * The stored data is distributed over all disks in a well-defined way. * The data is stored in a redundant way over the disks, so in case of failure, data is recoverable.

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What are the Common characteristics shared by all RAID levels?

All RAID (Redundant Array of Independent Disks) levels share the common characteristics of data redundancy, improved performance, and fault tolerance. They combine multiple disk drives into a single unit to enhance data reliability and availability while providing varying degrees of speed and storage efficiency. Additionally, RAID levels utilize different methods of data striping, mirroring, and parity to achieve these goals, catering to different needs and applications. Ultimately, all RAID configurations aim to protect against data loss and ensure continuous access to data.


How are raid levels determined?

Raid Levels are determined by MTTF/number. To determine the raid levels one should reference the standard raid levels and determine what raid level your data storage capacity needs.


How many different raid levels are there?

There were originally five different RAID levels. However, you can use a number of hard drives to create more raid levels, although this may affect performance.


How is redundancy achieved in a RAID system?

It depends on what RAID level you are planning to use. One of the most common levels is RAID 1, data is written identically to multiple hard drives. This achieves redundancy in a RAID system. It creates a duplicate, a fail safe in case of a hard drive failure.


How many RAID levels exist?

7


Advantages and disadvantages of raid levels?

RAID provides two main advantages: space and data security


How important are raid levels?

The actual level used is not as important as what use the server is intended for. Different levels of RAID are used for different applications. They can include mirroring and striping.


What RAID levels combined dedicated data drives with dedicated parity drives?

ghjkgh


How can different disks be configured for a RAID in Windows?

The answer depends on whether one is looking to configure RAID via hardware or software. Windows is capable under disk management to run RAID via software. The first step is to convert to a dynamic disk. Then the RAID levels supported, in parentheses are Striped, 2 disks (0) Mirrored, 2 disks (1) Striped with parity, which required 3 disks (5) being the three most popular. That said if RAID is being done at the hardware level, then the operating system is oblivious to the fact that it is being raided at all and simply reads what the RAID controller tells it to. In this scenario all RAID levels are suported. For a deeper discussion on raid levels the following site is excellent. http://www.acnc.com/04_01_00.html


What tool can you use in Windows to configure and manage hard drives and RAID levels?

Disk Manager


The most common form of RAID used on modern networks relies on what techniques?

C: disk striping with distributed parity AKA RAID 5


What is a RAID in technology?

an industrial standard which exist for multiple-disk database schemes, is termed as RAID. The basic strategy used in RAID is to replace the large capacity disk drive with multiple smaller capacity disks. there are several RAID levels. RAID 0 is for striping: Applications requiring high performance for non critical data. RAID 1 is for Mirroring : (Typical applications) System drives; critical files. ther are 6 RAID levels may be its in the form of disks overlaping one upon the another. With this background can any one give detailed, pictorial form of RAID Thank you, Suman (MCA student)