Examples of Raid Data Loss Situation

File servers, web servers, database servers and other application servers are commonly used for critical business data storage. The file servers comprise of one hard drive or multiple hard drives which are then configured into simple or complex raid volume. When such system crashes, the loss of critical and often massive business information could be the worst fear of any organization.

The most common raid configurations are raid 5, raid 1 and raid 1 + 0, as such configurations have built-in redundancies, without sacrificing too much on performance. Raid server will avoid data loss situation when a single disk element within the array group fails. It is a common belief that two disks will unlikely fail at the same time. When one single disk fails, the user should have sufficient time to swap out the damaged disk for a good one and then perform a rebuild. At least the user should have sufficient time to copy out the data in raid degraded mode. However, in reality, this is nothing more than a myth. In fact, most companies were left dumbfounded when the raid server crashed right in front of them.

It is common to find the following raid failures :

• Raid controller failure as most raid server has a single controller resulting in single point of failure
• Users do not or too late to take note of single disk failure before another additional disk failure occurs. This is very common because when one disk has failed due to age, the other one will quickly follow suit.
• Lost of raid registry data in memory
• Inadvertent reconfiguration of RAID volume
• Wrong replacement of good disk element belonging to a working raid volume
• Logical deletion or corruption of file system
• Common power surge that corrupts the raid server physically and logically
• Raid rebuild error or volume reconstruction problem
• Virus attack or accident reformat of single or raid volume raid

In such situation, regardless of the size, type and configuration of your enterprise storage RAID, Adroit Data Recovery Centre could be here to help to recover your data when all other means have failed.