RAID 5 Data Redundancy

IT systems have become a critical consideration for any modern business, and leave many questions up in the air about how to best protect hard drive data. There are a multitude of technologies available today to help prevent hard drive failures bringing your business to a grinding halt. Ensuring you have a good data redundancy solution running in your IT system helps insure your data is backed up and secure.

RAID 5 stands for 'Redundant Array of Inexpensive Disks' and is a popular way to reduce the risk of hard drive data loss. It is a system wherein a minimum of 3 physical hard drives are connected to a controller that spreads data across the disks, improving speed and allowing for the potential failure of one disk within the array. A RAID 5 controller automatically creates a second copy of all your data across the connected drives, creating a more secure data storage solution. A RAID 5 storage system has a few primary advantages for your business, being data redundancy, access speed and good storage size.

What is Data Redundancy?

Data redundancy is a term that’s casually thrown around when talking about computer data recovery and hard drive data storage, but what does it really mean? Data redundancy occurs when the same data appears multiple times across a disk or storage solution. It means there is a spare copy of stored data which can be accessed in the case the original files are lost or corrupted. In a RAID 5 system, parity is used to create data redundancy and allows for data recovery from hard disks. Parity is the technical term for the information that allows for RAID 5 recovery. It is stored across multiple disks, and can be used to rebuild lost data on a failed drive.

Faster Access to Your Data

A RAID system doesn’t only allow for RAID 5 recovery techniques, it will also improve the speed at which you can read and write files. As the data contained in a file is spread across multiple disks, each disk has a smaller piece to store. As the disks in the RAID 5 array work in tandem, data can be accessed at double or triple the speed of a standard single hard drive. If you’re working with large unwieldy files, the speed at which a RAID 5 array can work will be a huge advantage to your workflow.

Less Risk, Hardly Any Compromise on Size

Compared to other data redundancy solutions, RAID 5 allows you to keep your hard drive data more secure without needing double the space. Unlike RAID 2 which keeps a plain duplicate of all your files and doubling your storage needs, RAID 5 uses a complex algorithm to logically spread data and parity across multiple disks. Although some extra space is needed for this process, it is efficient and much less than the more simplistic RAID 2 setup. For instance, if you have three 500gb disks in a RAID 5 array you end up with a total space of 1.5TB, but usable space of 1TB due to data redundancy. A more simplistic RAID 2 system will only give you access to 750GB out of 1.5TB of disk space.

RAID 5 Recovery

Although RAID 5 storage systems are more reliable than just a single hard disk, they can still fail. In such cases, it is a good idea to contact a computer data recovery expert. RAID 5 recovery is a complex procedure that involves aligning the different data blocks within your hard drive data array. A computer data recovery expert will be able to help you retrieve data from a failed system with a smaller risk of corruption than if you were to use do-it-yourself software. Ontrack Data Recovery provides advanced data recovery services in Singapore. Our wide range of Singapore data recovery solutions can help you get your business’ data back promptly.