Once you have RAID data recovery at your disposal, you won’t have to worry about your data. Redundant Array of Inexpensive/Independent Disks is the data storage technology that offers data redundancy and performance enhancement. There are also various levels of RAID starting with RAID 0, RAID 1, RAID 2, RAID 3, RAID 4 and so on. Each of the levels of RAID has its own capacity, redundancy, and speed ratios. RAID syndicates multiple hard drives into a single logical system to overcome data recovery challenges. RAIDs are storage media devices where you can rely on for protecting your data. RAID is worth for the investment made on this data recovery service. Still, you shall be aware of the complexity associated with it before attempting any quick recovery.
RAID and Backup System are Not Same
Before we discuss the complexity of RAID data recovery, you need to know these little and vital things. It would help you to get a clear idea of what RAID actually is. Don’t confuse the RAID with a backup system as they are completely different. Many end users and companies using RAID often consider RAID as a backup system. It is possible to use RAID arrays as backup systems only when another copy of the same data or database is saved elsewhere. The confusion regarding the implementation of RAID stems from its redundant feature. Like any digital storage device, it is not unusual for RAID to fail at times. It can mainly happen due to the mistake of the controller or when one or more hard drive fail to perform. Moreover, a RAID might fail because of a logical corruption while implementing the system. Thus, it is expert advice to keep a proper backup system of your data in place.
RAID Data Recovery Process
Only a technical expert can control the complex and customizable nature of RAID systems. Otherwise, you cannot apply RAID without a deep understanding of how the data is laid out across the drives. When RAID fails due to multiple hard drive failure, gaining access to the failed drives is the first stage of recovering data. Then it is required to rebuild the unit before attempting to extract data. The RAID users occasionally need to make several attempts to bring back the right configuration at this stage. A careful approach is necessary for more complex RAID systems. RAID data recovery emphasizes the creation of sector by sector image copies of the drives available. It needs to be done before rebuilding the disk array. It reduces the risk possibilities of getting any data deleted or overwritten and prevent irreversible damage. Hence experts use hardware write protect tool during the image setup process to prevent the alteration of original RAID drives.
Unique RAID Systems
May proprietary RAID systems like Drobo BeyondRAID, QNAP, NAS. and more are flooding the market these days. RAID data recovery service tends to become more complex due to the closed nature of RAID systems. The complexity arises as most RAID systems use non-standard RAID configurations. It becomes problematic even when the RAID systems combine RAID configurations within a single system. Thus, RAID systems require reverse engineering to understand the distribution of data across hard drives.
Complexities Associated with Different RAID Data Recovery Systems
Have a quick look at the various RAID systems to know their complexities.
It is an efficient system but lacks recovery choices for end users. Here every individual drive is not dependent on another as they are their own controllers. It offers high performance and allows the user to write transactions on its behalf. Despite all these advantages, all your previous data gets deleted when one drive of RAID 0 crashes. Thus, it is always essential to back up your data to an external hard drive. RAID 0 is not suitable for dealing with critical data. Last but not least, like other RAIDs, it is not beyond failures.
When you write a transaction to RAID 1, a copy is created to another drive. Thus, a backup is necessary to remove the chances of losing data. It is complicated because the data needs to be written twice and takes a lot of time. As a result, the performance of recovered data suffers. When you use RAID, the total storage capacity is split into two halves. So, the actual storage capacity of the drive is 1TB when you possess a 2TB drive. When one drive fails, the mirror driver replaces it in order to preserve your data. By using RAID 1, you will get into trouble if one drive crashes.
RAID 5 applies parity so that the drive can reconstruct data if one drive fails suddenly. RAID is complex as mirroring becomes insufficient when you do not replace the crashed drive. RAID 5 disperses your data across various drives and parity data. Thus, you need to replace a crashed drive in order to reconstruct the data. Users require three disks for RAID 5 to recover their lost data. Furthermore, data recovery becomes complex when one disk fails in the array. RAID 5 requires a RAID controller to cope with the additional complexity of this system.
Like RAID 5, RAID 6 also writes the parity to disks when one disk fails. RAID 5 uses a single disk to recover data whereas, RAID 6 utilizes two disks. Thus, it does not have the risk of losing data in the middle of the data recovery process. Still, it is better to have at least four disks in order to deploy RAID 6. There is no scope of data correction if the entire array fails in RAID 6.
It is vulnerable to power cuts and erases the cached information while recovering data. Since RAID 7 is a non-standard level, it requires proprietary hardware to carry on its function.
It creates a hybrid array by encompassing the RAID 0 as well as RAID 1 solutions together. This data recovery Dubai system works at a great speed and redundant in its approach. Most of the admins do not prefer RAID 10 as it uses half of its storage capacity for mirroring.
Regardless of the type of RAID, you are using, they are a lot more complex than a single hard drive recovery solution. Implementation of RAIDs is beyond the capacity of a non-technical person. Only professionals can handle the tricks involved with RAID data recovery. Thus, we would recommend you to stop using the system once you have encountered a data loss. If you continue to use your system and apply any troubleshooting tips, then further damage might occur to the disk array. Thus do not try to apply RAID unless you are confident enough of how to deal with it. Seek professional RAID data recovery service after the failure of initial attempts. Otherwise, the data recovery would become a lot more complex and even impossible in critical situations. Therefore, approach a skilled and experienced RAID data recovery specialist to deal with the complexity of RAID data recovery.
Frequently Asked Questions
1) Is RAID 0 fault tolerant?
RAID 0 is not at all fault tolerant because the data recovery process comes to a halt when one disk fails in the array. As a result, the chances of data loss and further corruption of data increases.
2) Why RAID data recovery is complex?
RAID data recovery is complex because only an expert knows how to utilize it correctly. Otherwise, a wrong application might cause immense damage to your data and make it irrecoverable as well. If you carefully go through the various RAID levels, then the answer will be more clear to you.
3) Is RAID better than a backup system?
There is no relation between a RAID data recovery and backup system. RAID is a process of storing data on multiple hard disks in order to protect them in case of a drive failure. Whereas, in backup, the files and databases are copied to a secondary location for preservation. Unlike a backup system, a RAID provides real-time protection of data. RAID stores multiple copies of a file across several hard drives in an array. When a drive fails, another drive replaces it to carry on the task of protecting data.