Replace the example path `/home/user/data` with the desired storage folder.
* ### How do I change the space reserved by the virtual disk?
By default, the entire disk space is reserved in advance. To create a growable disk that only reserves the space that is actually used, add the following environment variable:
```yaml
environment:
ALLOCATE: "N"
```
Keep in mind that this will not affect any of your existing disks, it only applies to newly created disks.
* ### How do I add multiple disks?
To mount extra volumes, modify your compose file like this:
Additionally, it's also possible to passthrough raw disk devices like this:
* ### How do I change the space reserved by the virtual disk?
By default, the entire disk space is reserved in advance. To create a growable disk that only reserves the space that is actually used, add the following environment variable:
```yaml
environment:
DEVICE2: "/dev/vdc1"
DEVICE3: "/dev/vdc2"
devices:
- /dev/vdc1
- /dev/vdc2
ALLOCATE: "N"
```
Please beware that any pre-existing partitions and data on those devices will be wiped.
Keep in mind that this will not affect any of your existing disks, it only applies to newly created disks.
Please note that even if you don't need DHCP, it's still recommended to enable this feature as it prevents NAT issues and increases performance by using a `macvtap` interface.
* ### How do I install a specific version of vDSM?
* ### How do I passthrough my GPU?
By default, version 7.2.1 will be installed, but if you prefer an older version, you can add its download URL to your compose file as follows:
To passthrough your Intel GPU, add the following lines to your compose file:
