Thursday, December 1, 2016

What is RAID 0 General Information

What is RAID 0 General Information


What is RAID 0
raid0What is RAID 0
What is RAID 0We published an article about RAID 5: "How RAID 5 work? Shorter and
 easier to interpret than ever" - and now is the time for a full series. We will try to show you
, in a few words, and interpretation of the shortest record levels of RAID - 0, 1, 1 + 0, 0 + 1, 2, 3, 4, 6
 and matrix. Now is the time for RAID 0 - take a look ...

What is RAID 0
We can describe RAID 0 as the connection of the two (or more) physical disks - so as to look like a
logical drive and one engine. In such a case, and ability are all equal to the number of times the disk
 in the "smaller" ones ability. ie- if you have two hard drives - 250GB 500GB and, and the size of the
 array will be equal to 500 GB.

RAID 0 is called also "bar" or "stripping size" group. This is because it smells data (chart) between
 tablets - without symmetry to repeat information. In other words, RAID 0 does not provide data
 redundancy. Things, the settlement of data between disks leads to a significant acceleration in
 the read and write operations - because of these parallel operations on all disks in the array.

Pros and Cons
The ability of the full group as a whole. Through the implementation of such a solution, it is also
 possible to increase the speed of reading and writing (but only compared with one disc).

When we talk about RAID 0, its also necessary to write about the negatives. The first is the issue
 of safety data. Is not designed like this method to prevent data loss. This means that a single disk
 failure may cause loss of all data contained in the matrix. Moreover, the data can be restored can
 be difficult because they are distributed on all disks. It is also impossible to retrieve the "blueprint"
 of data. Even when you use a special (and expensive) tools, data recovery can be incomplete and corrupt.

The second thing is the ability. Used even if two disks - 100 GB and 1 TB - will store set equal to
 200GB. So the use of disks with different capacities is uneconomical because of the inability to
 use the full storage potential.

RAID 0 is useful when
Because the only RAID interest 0 is the write / read speed, we can at one point only the rational
 use of it - to build a cheap and effective matrices and solutions use based on the RAID 1 + 0 or RAID 0 + 1.
Check it out for RAID 1 and RAID 0 + 1 and RAID 1 + 0 solutions.

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