Basic RAID 5 Variations
There are a lot of variations even for a basic RAID 5 layout, such as:
- left and right,
- synchronous and asynchronous,
- RAID 5 with delayed parity.
Let us consider each of these variations in detail.
Left and right RAID 5 arrays.
The difference is parity location on the array member disks.
The diagrams of parity location are shown below:
Synchronous and asynchronous RAID 5 arrays.
They differ from each other by the order of data blocks on the array member disks.
RAID 5 with delayed parity.
This array type differs from a typical RAID 5 by a single parity block occupying several data blocks.
Usually such an array is created by HP SmartArray controller.
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