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If you are working in a
Resizing a Volume
You can increase a virtual volume’s potential capacity using the CLI command volume resize. This is the first step in increasing a virtual volume’s actual capacity. Potential capacity is the maximum capacity a volume could be. Actual capacity is the capacity that the server recognizes a virtual volume as having.
Resizing a volume is done while the
After one or more volumes in a hierarchy are resized, the volume must be expanded to make its actual capacity equal to its new potential capacity. See “Expanding a Volume,” page 158.
In Figure 84, is a mirrored volume with a potential capacity of one terabyte. The smallest child of the mirrored volume determines the mirrored volume’s potential capacity. Resizing the
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1T
Ch 1 | Ch 2 |
1T
2T
Sim3
1T
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Figure 84. Asymetrical Mirrored Volume
When a simple or snapshot volume is resized with another simple volume, the first step in their resize concatenation is the creation of a cube. A cube is a special type of volume intermediary created for resizing a volume through concatenation. In Figure 85, page 154, the original connection to the child to resize is broken and transferred to the cube. A cube’s default alias is X+resized volume’s alias. In Figure 85, page 154, the alias of the volume to resize is Ch2; the alias of the cube isXCh2.
Chapter 8: Advanced Volume Operations | 153 |