The Most Common Symptoms of RAID Failure and Data Loss


hard drive raid

Are you planning to set up a RAID array to keep your valuable data safe? If you need a robust data storage solution then RAID can be a perfect choice. However, thinking that RAID is failure-proof can be a mistake. RAID arrays are popularly used to store a massive volume of data and experience smooth operations. RAID, Redundant Array of Inexpensive (or Independent) Disks, combines multiple hard drives into a single unit to achieve improved performance and reliability. The RAID technology distributes data across the drives that enhance the storage and computing capabilities. RAID can be configured in a variety of different ways referred to as RAID levels to serve different purposes.

The different RAID levels- 0,1,5,6 and 10 employ techniques like mirroring, striping, and parity that offer different capabilities. For instance, RAID 0 uses the Disk Striping technique to optimize your storage capacity but it is not fault-tolerant. RAID 1, on the other hand, uses Disk Mirroring technique to achieve superior performance. It uses mirroring which copies the data on multiple disks to increase data security. There’s no doubt in the superior performance of RAID arrays but in the end, hard drives are mechanical which makes RAID vulnerable to damage. In the event of one or more drive failures, RAID may become inaccessible and encounter significant data loss. Sometimes, RAID stops functioning suddenly while often it shows some signs of potential failure before it breaksdown. So, let’s find out common signs of RAID malfunctioning.

Symptoms of RAID Failure

You may invest in a reliable RAID array but eventually, all mechanical devices develop some problems. Whether you’re using G-Tech RAID, Synology, or WD My Book Duo, or any other device, some common signs such as abrupt shutdown or unusual noise indicate an impending problem. Here are some symptoms that indicate your RAID is about to fail.

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RAID Partition Loss

The partitioning technique is used to minimize speed loss but when partitions become corrupted, the system fails to recognize them. The problem of missing RAID partition can occur due to virus or malware intrusion. When this happens, the header of a RAID partition gets corrupt which makes it disappear. Also, when RAID stripping fails or you try to modify the partitions, this problem may occur. Incorrectly replacing a failed RAID drive, power surge, bad sectors, and other factors may also lead to partition loss.

Frequent Read/ Write Errors

If you’re frequently encountering reading and writing errors then it means there’s some problem with the hard drive. If restarting doesn’t help then there’s a risk of data loss. If hard drives in your RAID have aged, then also you may face data corruption. Failure to boot, slow performance, and odd sounds, all indicate a problem that can cause data loss. When RAID crashes, you need the assistance of a specialist like RAID or My Book Duo data recovery service provider.

RAID Controller Errors

Sometimes, after RAID rebuild, the system may suffer controller malfunctions if the new drive is incorrectly added to the array. Controller malfunctions can cause severe data loss because even changing the RAID controller doesn’t help. This happens because the RAID metadata is linked to the particular RAID controller. Controller errors may also occur due to a power surge.

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