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How many disks can be used for RAID 1?
The total no. of disks that are required to make RAID 1 is 3
What is the benefits of RAID 5?
RAID 5 setups allow for getting the most storage out of an array of disks without loosing parity, or redundancy. For example. Raid 5 array with four disks will have the capacity of three of those disks using the forth's pool of storage (over all the disks) as a parity bit so if one of the disks were to fail you would simply swap out the defective disk and the array will rebuild itself in an ideal world. Because of this write speeds on RAID 5 arrays tend to be a bit slower then other arrays because it's spreading out it's data on however many disks you have any it's writing parity bits at the same time. Read speeds tend to be quick on RAID 5 making it ideal for archival use or data that must be read a lot but not edited much or changed. Think of a server dishing up programs to users or storing their finished work files. Hope that helps!
How many type of raid?
Raid 0 :It is the Stripped Disk Array with no fault tolerance and it requires at least 2 drives to be implemented. Due to no redundancy feature, RAID 0 is considered to be the lowest ranked RAID level. Striped data mapping technique is implemented for high performance at low cost. The I/O performance is also improved as it is loaded across many channels. Regeneration, Rebuilding and functional redundancy are some salient features of RAID 0.Raid 1:It is the Mirroring (Shadowing) Array meant to provide high performance. RAID 1 controller is able to perform 2 separate parallel reads or writes per mirrored pair. It also requires at least 2 drives to implement a non-redundant disk array. High level of availability, access and reliability can be achieved by entry-level RAID 1 array. With full redundancy feature available, need of readability is almost negligible. Controller configurations and storage subsystem design is the easiest and simplest amongst all RAID levels.Raid 2:It is the combination of Inherently Parallel Mapping and Protection RAID array. It's also known as ECC RAID because each data word bit is written to data disk which is verified for correct data or correct disk error when the RAID disk is read. Due to special disk features required, RAID 2 is not very popular among the corporate data storage masses, despite the extremely high data transference rates.Raid 3 :RAID 3 works on the Parallel Transfer with Paritytechnique. The least number of disks required to implement the RAID array is 3 disks. In the RAID 3, data blocks are striped and written on data drives and then the stripe parity is generated, saved and afterwards used to verify the disk reads. Read and write data transfer rate is very high in RAID 3 array and disk failure causes insignificant effects on the overall performance of the RAID.Raid 4 :RAID 4 requires a minimum of 3 drives to be implemented. It is composed of independent disks with shared parity to protect the data. Data transaction rate for Read is exceptionally high and highly aggregated. Similarly, the low ratio of parity disks to data disks indicates high efficiency.Raid 5 :RAIDS 5 is Independent Distributed parity block of data disks with a minimum requirement of at least 3 drives to be implemented and N-1 array capacity. It helps in reducing the write inherence found in RAID 4. RAID 5 array offers highest data transaction Read rate, medium data transaction Write rate and good cumulative transfer rate.Raid 6 :RAIDS 6 is Independent Data Disk array with Independent Distributed parity. It is known to be an extension of RAID level 5 with extra fault tolerance and distributed parity scheme added. RAID 6 is the best available RAID array for mission critical applications and data storage needs, though the controller design is very complex and overheads are extremely high.Raid 7 :RAID 7 is the Optimized Asynchrony array for high I/O and data transfer rates and is considered to be the most manageable RAID controller available. The overall write performance is also known to be 50% to 90% better and improved than the single spindle array levels with no extra data transference required for parity handling. RAID 7 is registered as a standard trademark of Storage Computer Corporation.Raid 10 :RAID 10 is classified as the futuristic RAID controller with extremely high Reliability and performance embedded in a single RAID controller. The minimum requirement to form a RAID level 10 controller is 4 data disks. The implementation of RAID 10 is based on a striped array of RAID 1 array segments, with almost the same fault tolerance level as RAID 1. RAID 10 controllers and arrays are suitable for uncompromising availability and extremely high throughput required systems and environment
What is raid support?
RAID stands for "Redundant Array of Inexpensive/Independent Disks". RAID can increase performance and/or data redundancy and/or capacity. There are many different RAID types, the most common being RAID 0 (stripe), RAID 1 (mirror) and RAID 5 (stripe with parity).RAID works by combining two or more hard disks.In a RAID 0 (stripe) array, data is split equally between the number of disks in the array. For example, when a 2 MB file is written to a RAID 0 array with two hard drives, the file is split in to two parts and 1 MB of data is written to each hard drive. This increases capacity and performance, but sharply decreases redundancy since only one of the drives needs to fail for all information to be lost.In a RAID 1 (mirror) array, a complete copy is written to each hard drive in the array. Capacity and performance stay the same, but redundancy is increased. As long as one drive works, you will not lose data.In a RAID 5 (stripe with parity) array, you need at least three hard drives. Files are split up to all but one of the drives (similar to RAID 0) and a parity bit is written to the last drive. This increases performance, capacity and redundancy. Performance is not as good as RAID 0, but still better than RAID 1. Redundancy is not as good as RAID 1, but is still quite reliable. Capacity is the sum of all but one of the drives.There are other RAID levels, but they are not as common.RAID support simply means that whatever device is being described supports RAID. Nearly anything supports RAID. The only computer component that "RAID support" would be relevant to would be a computer motherboard or an IDE or SATA controller.
What does a RAID5 level mean in computer networking?
RAID5 level in computer networking means to combine disk drive components. RAID, or Redundant Array of Individual Disks, have many different levels like RAID1, RAID2, and so on.
How many hard drives does it take to implement RAID 10?
It is a combination of RAID 1 and RAID 0. It takes at least four disks for RAID 10. Refer to A+ at Ch. 6 pages 258.
What is RAID and how can it help you as a main computer printer sever?
RAID stands for "Redundant Array of Inexpensive/Independent Disks". RAID can increase performance and/or data redundancy and/or capacity. There are many different RAID types, the most common being RAID 0 (stripe), RAID 1 (mirror) and RAID 5 (stripe with parity).RAID works by combining two or more hard disks.In a RAID 0 (stripe) array, data is split equally between the number of disks in the array. For example, when a 2 MB file is written to a RAID 0 array with two hard drives, the file is split in to two parts and 1 MB of data is written to each hard drive. This increases capacity and performance, but sharply decreases redundancy since only one of the drives needs to fail for all information to be lost.In a RAID 1 (mirror) array, a complete copy is written to each hard drive in the array. Capacity and performance stay the same, but redundancy is increased. As long as one drive works, you will not lose data.In a RAID 5 (stripe with parity) array, you need at least three hard drives. Files are split up to all but one of the drives (similar to RAID 0) and a parity bit is written to the last drive. This increases performance, capacity and redundancy. Performance is not as good as RAID 0, but still better than RAID 1. Redundancy is not as good as RAID 1, but is still quite reliable. Capacity is the sum of all but one of the drives.There are other RAID levels, but they are not as common.In short, RAID will not help a print server in anything except boot up time unless the system is constantly running out of available memory. In my opinion, the best thing to do for a print server, if anything at all, is add more system RAM. This will help the server spool documents if you have many clients printing large files and help prevent excessive paging.If you are having a specific problem with your print server, please explain it in the discussion page and we may be able to help you further.
How can two hard disks work together in a system?
Very well. A single system can share many disks. there are several protocols that have various methods of dealing with multi-disk systems. Check the Internet for RAID which is a group of protocols for redundant arrays of disks, some protocols allow one disk to fail and be replaced while the system still remains running and no data is lost.
What is a RAID controller and what bennefits would you receive?
RAID stands for "Redundant Array of Inexpensive/Independent Disks". RAID works by combining two or more hard drives. It can increase performance and/or data redundancy and/or capacity. There are many different RAID types, the most common being RAID 0 (stripe), RAID 1 (mirror) and RAID 5 (stripe with parity).In a RAID 0 (stripe) array, data is split equally between the number of disks in the array. For example, when a 2 MB file is written to a RAID 0 array with two hard drives, the file is split in to two parts and 1 MB of data is written to each hard drive. This increases capacity and performance, but sharply decreases redundancy since only one of the drives needs to fail for all information to be lost.Performance = Drive Speed * Number of DrivesCapacity = Drive Size * Number of DrivesRedundancy allows for no drives to fail.In a RAID 1 (mirror) array, a complete copy is written to each hard drive in the array. Capacity and performance stay the same, but redundancy is increased. As long as one drive works, you will not lose data.Performance = Drive SpeedCapacity = Drive SizeRedundancy allows for all but one drive to fail.In a RAID 5 (stripe with parity) array, you need at least three hard drives. Files are split up to all but one of the drives (similar to RAID 0) and a parity bit is written to the last drive. This increases performance, capacity and redundancy. Performance is not as good as RAID 0, but still better than RAID 1. Redundancy is not as good as RAID 1, but is still quite reliable.Performance = Drive Speed * (Number of Drives - 1) (Theoretical)Capacity = Drive Size * (Number of Drives - 1)Redundancy allows for one drive to fail.There are other RAID levels, but they are not as common.The main benefit of using a RAID array is data redundancy and/or performance.Non-commercial (home) users and enthusiasts wanting a very large increase in performance (theoretically multiples of the number of drives used) usually go for RAID 0 since they often are not too worried about drive failure and they enjoy the larger drive capacities that it provides.Small businesses who only need cheap redundancy usually go for RAID 1. If one drive fails, the drive can be replaced and the mirror array restored.Larger businesses or those needing file/database performance go for RAID 5. They can afford the price of an extra drive and a more expensive RAID controller. RAID 5 provides high performance with large capacities while still maintaining data redundancy and is the most desirable in a business or enterprise environment.There are some other options for RAID such as RAID 10 or RAID 01.RAID 10 features two separate RAID 0 arrays which are then mirrored in a RAID 1 array.RAID 01 is the opposite, with two separate RAID 1 arrays which are then striped with a RAID 0 array.There are other non-standard RAID levels, but most are rather uncommon.Alternatively, there is also drive spanning (aka JBOD), but this provides no extra redundancy or performance. Drives are "glued", if you will, end to end.The benefits of each RAID level vary. The type of RAID used depend on the job it must fulfill.
How many RAIDS are available for fault tolerance methods?
RAID (Redundant Array of Inexpensive Drives) is the technology developed to decrease risk involved with the usage of individual disks for Storage. RAID adds realibility & provides performance in Read methods. Well Known RAID Levels are 1. RAID0 - Striping, 2. RAID1-Mirroring, 3. RAID2 - Striping at Bit levelusing Errorcorrection code on disks, 4. RAID3 - BYTE Level striping with parity disk, 5. RAID4 -Block Level striping with Dedicatedparity disk, 6. RAID5 - Striping at Block level with Distributed Parity, 7. RAID6 - Block level striping with Dual Distributed Parity.All RAID levelsenable Fault Tolerant storage volumes except RAID0.
What kind of software is available for RAID recovery?
There are multiple software’s available for recovering data from RAID but as RAID is a complex structure and recovering data from Corrupted RAID is a complex and time-consuming task so you should rely on a software tested and recommended by Data Recovery Specialists. One of such software is Stellar Data Recovery Technician that recovers lost or inaccessible data from RAID 0, RAID 5 and RAID 6 drives. This software is a complete solution with advanced features to recover files, photos, videos, emails etc. from Windows-based hard drives, external media and RAID array. You can try this tool for free and the tool can also be used in scenarios if probable RAID construction fails.
What is RAID discs?
There are no RAID "DISCS". RAID (Redundent Array of Independent Disks) is a method of storing data on separate hard drives in order to either increase data transfer speed or to allow for recovery of data in case of a hard drive failure. There are many different types of RAID configuration which I'm not going to go into here.Answer--Redundant Array of Independent Discs Lets start with the basics. R.A.I.D. Redundant Array of Independent Discs. In the old days it also used to mean Redundant Array of Inexpensive Discs. A RAID system is a collection of hard drives joined together using a level definition (see levels below). There are many uses for it. First it can be used to stripe drives together to give more overall access speed (level 0). Second it can be used mirror drives (level 1). Third it can be used to increase uptime of your overall storage by striping drives together and then keeping parity data, if a drive should fail the system keeps operating (level 5). Most people use level 5 for the uptime purposes and its ability to join together 16 drives, giving a large storage block. Read about the levels below and see which one suits you best.
