There are multiple ways to create space in a FlexVol volume. Understanding what these methods are and their respective benefits and drawbacks helps you decide which method is best for your requirements.
Some common ways to create space in a volume are as follows:
You can do this manually, or automatically by enabling the autogrow functionality.
This makes space available to the active file system.
This results directly or indirectly in more space being made for the volume. For example, more space in the aggregate can allow a volume to increase in size automatically with the autogrow capability.
You can delete Snapshot copies manually, or automatically by enabling the Snapshot autodelete capability for the volume.
You should only use this as a temporary measure to create space. When the fractional reserve is set to 0 percent, overwrites might fail, and in certain deployments write failures might not be acceptable.
If the volume is 100 percent full, it might not be possible to delete a file if it participates in any block sharing, such as volume Snapshot copies or deduplication, and you cannot recover the space. In addition, modifying a directory to delete a file might require additional space, so deleting the file can actually consume space. Under these conditions, you can do one of the following: