RAID
Redundant array of independent disks (RAID) combines multiple physical disks into a single storage unit, and then distributes data across the disks in one of several predefined methods.
The following features make RAID ideal for use with data storage and NAS applications.
RAID Feature |
Description |
Advantages |
Disadvantages |
---|---|---|---|
Grouping |
Disks that are combined using RAID form a RAID group, which QuTS hero considers one large logical disk. |
Managing the storage space of one large disk is simpler and more efficient than multiple small disks. |
Initial configuration can be more complicated. |
Striping |
Data is split into smaller pieces. Each piece is stored on a different disk in the RAID group. QuTS hero can then access that data by reading from or writing to multiple disks simultaneously, increasing read and write speeds. |
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If one disk in the RAID group fails, and the RAID group has no redundancy, all data will be lost. |
Redundancy |
Each disk in the RAID group can store the following:
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Total storage capacity of the RAID group is reduced. |