Data recovery from formatted RAID Array | Successful Case
Data redundancy, speed advantages and data protection that RAID systems provide, of course, are useful features. However, “data protection” is a slippery expression. Multiple drives damage, RAID controller failure are not the only issues that RAID systems suffer from. Data loss due to data overwriting is not less scary. Rebuilding the damaged RAID, adding new data after data deletion, reformatting a RAID system can damage the most-needed business data itself. The latter was the latest RAID data recovery case that we were working on. RAID5 system with 4 member drives was reformatted to RAID10. Some data was damaged, but we could rebuild the old RAID5 configuration and recover more data than originally expected. This blog post is not about what RAID level fits the best and why it should be implemented. Each has its downsides and advantages. Proper data protection comes with having a good backup plan. No RAID level can provide this feature. Data loss situations come in different forms. Having two copies of the same data makes it much more likely you can restore your valuable data when an accident strikes.