RAID 1 Data Recovery : 0800 072 3272
RAID 1 arrays consist of two hard disk drives or volumes that are configured as a single drive. The data is stored on the drives in such a way that the data is identical on both drives. The main advantage of using RAID 1 data recovery is that there is 'Redundancy' this means that if one drive fails, there is another copy of the data.
Most modern RAID controllers that support RAID 1 also allow for 'hot spares' so if a drive in the array fails, then the data is automatically rebuilt on the hot spare
Another advantage is that during reads, the data is read in blocks, similar to that of RAID 0 this improves the read speed to that of a single drive, however, the disadvantages of RAID 1 are the cost and writes take longer to perform.
|
Ideal applications are Web Servers, the operating system of a corporate server where there are more reads than writes - for example, a server may consist of two RAID containers, the first a RAID 1 container consisting of the operating system. If one drive fails, the operating system should continue to function at full speed. The second container could consist of three or more drives configured as RAID 5 for data storage |
RAID is NOT an alternative for backup. Computer data should be backed up using a recognised backup policy.