RAID Storage Systems and Configuration

RAID technology (Redundant Array of Independent Disks) provides computer manufacturers and users with high-availability high-performance data storage capability for business-critical applications. These systems are composed of multiple components, including hardware and software:

  • Disk drives (multiple drives that are incorporated in an ‘array’ of several physical disks)
  • Controller – this is the electronic component that communicates between the computer and the drives to manage data storage and access
  • Configuration data – this configuration information describes the specific RAID environment unique to a particular system

One of the complexities of a RAID system is that each manufacturer or implementer of this technology has their own approach to how the systems are configured and controlled. Detailed knowledge of how one system operates and stores data may not be transferable to another manufacturer’s system. Even the manner with which the controller communicates with drives and how the configuration is updated and stored vary from system to system.

RAID Points of Failure – the Configuration

A key principle to RAID technology is the distribution of data across multiple drives, all managed by the software, configuration data, and the controller. This process balances the flow of data across the disks to provide a high level of performance while also assuring data integrity. The problem arises when one of the critical components fails, as in the case of the configuration being lost or corrupted to the extent of becoming inaccessible. Where a single disk failure is manageable by the RAID system, loss of the configuration data may result in the system becoming unavailable or may also cause potential corruption.

Recovering data or even the RAID system itself will vary greatly depending on the actual cause of failure and how much damage has been done before the problem is discovered.

Solutions for Recovery

Recovering your RAID configuration properly is critical to regaining access to the data stored on the disk array. Such an effort requires in-depth technical knowledge of how your individual system is designed and implemented. To ensure the retention and integrity of your data it is important that you discontinue use of the system immediately and consult with a well-respected professional with a proven track record of restoring data. There are multiple versions of RAID storage systems and variations among manufacturers making them quite proprietary in nature. This results in the systems not being easily recovered by novices or commercially-available recovery software.

Orange County Data Recovery – Service You Can Count On

With the multitude of RAID configurations and arrays implemented by various manufacturers and even being inconsistent across hardware models recovery can be a daunting experience. Configuration data is similarly stored and managed differently from one RAID system to another. Attempts to recover incorrectly can result in making matters worse, and even permanent data loss. Since configuration recovery processes will vary from system to system, experience and technical skills are critical to successful restoration of service without data loss.

Orange County Data Recovery has the seasoned technicians with the level of expertise needed to recover your configuration data and restore your RAID environment quickly and reliably. Call today for a quick response quote from our RAID server specialists regarding your specific recovery needs.