Anyone who works with data storage and information security must have come across the term RAID by the way. However, while some may come to use their concepts, not everyone knows exactly what RAID is, what types of RAID there are and what options of recovering data from RAID drives NY are.
Understanding how this engine works is important to find out how this system is able to provide more security and performance to your applications.
Let’s explain in detail to you not only the concept but also what the different types of RAID are that exist.
What is RAID?
It is the combination of several hard drives, the popular HDs, so that they form a single logical unit.
In other words, when several HDs work as if they were only one, we have a RAID. And why is this helpful? In case of a disk failure, the others will remain in operation, preventing information from being lost or interrupting data access. So we can say that RAID provides more security and more performance.
Types of RAID
RAID 0 – Here, the available data is divided into small segments and distributed by the disks. Here there is no redundancy and therefore there is no fault tolerance.
RAID 1 – In this model, the basis is the mirroring of one disk in another. There is virtually no loss of performance.
RAID 2 – What this system does is to detect failures in hard disks. In short, all disks are constantly monitored by this mechanism.
RAID 3 – Here all the information is divided into the array disks. The greatest advantages are large data transfer and reliability in protection.
RAID 4 – The big balcony of this version is the possibility of reconstructing the data through the parity mechanism. It guarantees the integrity of the information.
RAID 5 – An evolution of versions 2, 3, and 4. Here, space equivalent to an entire disk is reserved for storing the parity information.
RAID 6 (Dual parity) – It’s basically the same as RAID 5, but with twice the parity bits. This is one of the most secure alternatives available.
RAID 10 – In this case, half of the disks store data and half make copies of them. It is the safest that exists among all.
Good place for data recovery is the professional data recovery services, not only in HD, but also in other types of media.