Take a snapshot to copy words or images from all or part of your PC screen. Use Snipping Tool to make changes or notes, then save, and share. Capture any of the following types of snips: Freeform. Draw a freeform shape around an object. Rectangle. Drag the cursor around an object to form a rectangle.

2024年9月27日 · The snapshot utility redirects writes to the new block and updates the relevant pointers. The old data remains in place as a point-in-time reference to the original block. Advantages: In contrast to copy-on-write, read-on-write snapshots consume fewer performance resources because each modified block generates a single write IO.