問題文
A team is choosing a filesystem for a 40 TB volume that holds large media files and must be grown online as the archive expands. Shrinking is never required. Which characteristic of XFS matters most for this decision?
選択肢
- Its maximum size is fixed at creation time, so a 40 TB volume must be planned for its final capacity in advance, and later growth means creating a larger filesystem and copying the data across.
- It can be grown while mounted but provides no supported way to reduce its size, which suits a volume that only ever expands.
- It must be unmounted before it can be grown, so the archive would need a maintenance window every time the volume expands, and the window has to be long enough to run a full consistency check of the whole filesystem afterwards.
- It can be both grown and shrunk while mounted, which makes the decision independent of whether shrinking is ever needed, and a single online operation covers either direction of resize.