Which part of disk space is reserved for future updates and maintenance?

Reserved space is specifically designated within the disk's overall capacity to ensure that there is always a portion set aside for future updates and maintenance tasks. This practice helps to maintain the system's integrity and performance, allowing for smooth operations even as data usage increases over time. The purpose of reserved space is to prevent scenarios where the disk is completely filled, which could hinder the ability to perform necessary updates or maintenance, potentially compromising system functionality.

While other terms such as allocated space, used space, and total storage are related to disk management, they do not specifically denote the action of setting aside space for future needs. Allocated space refers to the amount of disk space that has been set aside for use by specific processes, while used space indicates how much of the storage capacity is currently occupied. Total storage simply reflects the entire capacity of the disk without regard to how that space is managed or allocated. Thus, reserved space stands out as the correct term for what is meant by setting aside room for future system updates and maintenance.