Just replace `/home/user/data` with the path to the folder you want to use for storage.
* ### How do I change the allocation mode of the virtual disk? ###
* ### How do I change the space reserved by the virtual disk? ###
By default the total space for the disk is reserved in advance. If you want to only reserve the space that is actually used by the disk, add these lines:
By default the total space for the disk is reserved in advance. If you want to only reserve the space that is actually used, add these lines:
```
environment:
ALLOCATE: "N"
```
This might lower performance a bit, since the image file needs to grow every time it's written to.
This might lower performance a bit, since the image file will need to grow every time new data is added to it.
