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ISP does not support online relayout of an application volume in the same way as when the vxassist relayout command is used on a traditional volume. ISP can perform relayout internally if this is necessary to preserve the intent of a volume, or to support operations such as changing the number of mirrors, columns or logs that are associated with a volume. However, you should note that such operations may destroy the intent of a volume by changing its desired data redundancy or performance capabilities.
The nearest equivalent in ISP to the online relayout operation is capability transformation. This changes the capabilities of a volume in a controlled fashion, and preserves the size of the volume but not its intent.
See Transforming the capabilities of a volume online.
You can also add or remove mirrors, columns or logs to or from a volume, stop and reverse transformation and relayout operations, and verify that the intent of a volume has been preserved.