Can You Explain What Raid 0,1,5,10 Are, And What Each Is Used For?
I am new to blurtit and would like to know the answer.
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Hi,
RAID stands for redundant array of independent disks.
In RAID 0, the data on the disk is divided and written onto more than 1 disk. This helps in improving performance but it does not deliver fault-tolerance - i.e. If one disk fails then all the data in the array is completely lost.
RAID 1: The data on the disk is written simultaneously on more than 1 disk. If one of the disks fails then data can be recovered from the other disk.
RAID 5: Data is stripped onto more than 1 disk in bytes and it is fault-tolerant. This results in excellent write performance.
RAID 10: Multiple RAID 1 stripes are created simultaneously and RAID 0 strip is then created over them. Hence RAID is a combination of RAID 0 and RAID 1.
Click here for a very good RAID disks tutorial.
RAID stands for redundant array of independent disks.
In RAID 0, the data on the disk is divided and written onto more than 1 disk. This helps in improving performance but it does not deliver fault-tolerance - i.e. If one disk fails then all the data in the array is completely lost.
RAID 1: The data on the disk is written simultaneously on more than 1 disk. If one of the disks fails then data can be recovered from the other disk.
RAID 5: Data is stripped onto more than 1 disk in bytes and it is fault-tolerant. This results in excellent write performance.
RAID 10: Multiple RAID 1 stripes are created simultaneously and RAID 0 strip is then created over them. Hence RAID is a combination of RAID 0 and RAID 1.
Click here for a very good RAID disks tutorial.
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