Home > Storage > PowerStore > Virtualization and Cloud > PowerStore: VMware Horizon VDI Best Practices > Changing capacity needs
Planning for the future is simple with PowerStore. Dynamically scaling as drives are added is as simple as adding drives or enclosures of disks. When new drives are detected, they are automatically added to the available capacity.
Adding capacity to an existing file system is easy. Choose the new size, and the file system expands instantly. No downtime is required and there is no user impact.
Reducing the size of a file system is also simplified. If excess space is allocated to a file system, it can be reduced in size if sufficient capacity remains for existing data. With thin provisioning, no space is wasted, and file systems do not need to be reduced unless hard growth boundaries must be set.
Quotas are supported as well for growth management. This feature can prevent user directories or shared file structures from growing beyond the capacity of the system.