RAID, or Redundant Array of Inexpensive Disks is a technology of data storage that combines multiple hard drives into a logical unit to provide data in case of unanticipated events. Such data is distributed across multiple hard drives in different configurations that we choose, and who call themselves ” levels ” RAID.
If many of those who do not believe as a RAID device could face a possible unpleasant event, there is still a possibility that this can happen. Nothing is 100% safe and nothing works forever.
The most used configurations are RAID 0, RAID 1 and RAID 5.
RAID 0 – mention this configuration when two hard disks form a single virtual hard drive of. Performance is high read / write, but the failure of one can lead to data loss.
RAID 1 – this data is stored in mirroring configuration, ie in the mirror. Data stored on the hard disk will be stored first and second. Performance is reduced to reading / writing, but offers a much higher safety than the other configurations.
RAID 5 – can be composed of multiple HDDs (min.3). If a hard drive of ‘pica’ system goes further. The biggest problem with this type of configuration is that if one of the hard drives not working properly, reduce the performance of the other hard disks. The failure of two hard drives result in data loss, but the chances of recovery.
Frequent cases of RAID data recovery:
1. RAID 1 has been set up and has been accidentally formatted a partition, and the data were deleted from both hard disks.
2. Error updating firmware. Failure is quite common on NAS. During the upgrade, there may be a problem of compatibility with existing hardware. NAS becomes inaccessible and NAS settings can be reset.
3. RAID needs a constant flow of electricity. In case of a power failure or surge RAID device can suffer bad injuries. Overvoltage on a hard disk can affect PCB and styli.
4.In during initialization phase if the parameters are corrupt, the data can not be accessed.
Three tips:
1. Make a regular back-up of important data.
2. Using a quality UPS significantly reduce risks.
3. Check the status of a time raid. You can note a ” diary ‘of Raidu-by date, time check, and some observations about the status acetuia.
In case you encounter problems RAID, always call a professional data recovery service. Bit Data Recovery is available with professional data recovery solutions based on years of experience in this field. More details on www.bitdatarecovery.com.