Replacing a failed hard drive is a delicate operation. During this process, your data can easily be compromised. Thanks to the deployment of a RAID system, your information will be secure. All you’ll need to do is set up daily backup measures to keep access to it. The tool alone boosts your PC’s performance. Find out how to carry out this replacement!
RAID: what is it?
A RAID system is a computer system designed to spread information across drives, in order to strengthen a PC’s security and reliability. Its ability to combine several storage devices thereby increases the performance of the data they contain.
The different types of RAID systems
To replace a failed hard drive, the volume of the deployed RAID must be substantial. The most commonly used are:
RAID 0
This is a system that uses the method known as “striping“. Here, data is spread across two or more drives present. It thereby increases their performance and achieves a high level of read and write speed.
RAID 1 system
This system is geared toward pure data backup. To do this, it uses the technique known as “mirroring”, which shows how you can protect yourself against redundant failures. Its operation is simple. It duplicates onto the two-drive array all the data contained on your PC.
RAID 5 system
The most commonly used system, it can work across at least three drives. It shows how to distribute data across them while saving on storage volume.
To secure your data, it uses parity blocks. In the event of a failure, none of your information disappears. The advantage of this system is that it improves read and write performance on a drive.
RAID 6 system
Thanks to this system, all your data is secure. It uses double parity and provides information on how to store and restore all your files. This utility works on at least four physical drives!
Its main strength is that it withstands a double failure well in the event of a system failure. To store your vital data, the utility lets you use SATA drives.
How to replace a failed hard drive in RAID ?
To replace a failed hard drive in RAID, you must follow certain steps. How do you proceed ? Here’s what you need to do :
Step 1
Most of the time, when a failure occurs, you receive an alert. You must therefore note this alert and initiate the appropriate procedures to stop it. Before replacing your failed hard drive, check that the storage volume level of the RAID receiver is accessible. Then, back up your data to avoid losing it.
Step 2
The second step is to replace the faulty failed hard drive. This is the riskiest process because it can lead to loss if handled improperly. Whatever RAID system you use, here’s how to replace your storage media :
- Turn off your PC and check that all cables connected to your device have been unplugged.
- Next, remove the cables at the back of your failed hard drive that power it.
- Then insert the RAID 5 into the bay of the removed failed hard drive, and secure it.
- Afterward, reconnect all the cables you disconnected from your device.
- Start your device and click on the “start menu”, then on “computer.”
- Click “manage” and choose the “disk management” option. Then click on the failing partition.
- Finally, click on the “repair volume” option. All the data contained on your old faulty failed hard drive will be copied to the RAID.
Step 3
This step involves rebuilding on the system the data contained on the failed hard drive being replaced. It involves several write operations to the new location.
This is a very delicate phase, as this configuration procedure can be interrupted by a system failure. This is why we recommend anticipating failures in order to ensure a smooth data transfer.
How to anticipate a failure on a RAID system ?
Most of the failures encountered on a RAID server begin during drive configuration. They can therefore lead to permanent data loss. How can this damage be limited ? The best option is to cut power to the drives in question.
If one of them isn’t working normally during file rebuilding, you can easily lose your information. Don’t hesitate to call on data recovery professionals in this case.
Replacing a failed hard drive in RAID is a lengthy process involving several operations. Before carrying out any procedure, always take care to back up your data. This will help you avoid losing it permanently in the event of a failure or accident.