Windows 10 features a storage solution called Storage Spaces. When you configure Storage Spaces you can include information redundancy with a feature called data resiliency.
Match the types of data resiliency on the left with the appropriate descriptions on the right. Each type of data resiliency may be used once, more than once, or not at all.
Requires that you have at least three storage devices - Parity
Requires at least five storage devices - Three-way mirror
Does not provide redundancy - Simple
Protects you from a single storage device failure - Two-way mirror
Requires at least two storage devices - Two-way mirror
Allows you to reconstruct data if one of the storage devices fails - Parity
Protects your data if two storage devices fail at one time - Three-way mirror
Storage spaces can include data resiliency. Choosing an option that provides resiliency requires you to allocate space for redundant information. The options for storage spaces data resiliency include:
-Simple, which does not provide redundancy. This option simply adds space from the storage pool to the storage space. When you select the Simple option, all of the data in the storage space is lost if one of the drives fails.
-Two-way mirror requires at least two storage devices. The data is written to two devices. Two-way mirror requires twice as much device space as the amount of storage allocated to the storage space. This option protects you from a single storage device failure.
-Three-way mirror requires at least five storage devices. The data is written to the three storage devices. This option provides redundancy for the data if two storage devices fail at one time.
-Parity requires that you have at least three storage devices. This option uses parity information to reconstruct data if one of the storage devices fails. Parity uses less space for redundancy than the mirror options, but performance is not as good as the mirror options if a device failure occurs. Parity requires only 50 percent more redundancy space than storage space.