What characterizes a uniformly consistent snapshot?

A uniformly consistent snapshot ensures that all data is consistent across multiple volumes at a specific point in time. This characteristic is essential because in environments where multiple volumes are associated with various applications, data consistency across these volumes is critical for maintaining integrity and avoiding data corruption. When a snapshot is taken uniformly, it captures the state of all specified volumes simultaneously, preventing discrepancies that could arise if snapshots were taken at different times. This is particularly important when applications span across multiple volumes and require a synchronized view of data.

In contrast, options that suggest limiting the snapshot to just one volume or focusing only on single applications do not capture the full scope of uniform consistency. Similarly, focusing solely on online applications overlooks the necessity of ensuring cross-volume consistency, which is a core aspect of what it means to have a uniformly consistent snapshot. Therefore, the answer accurately reflects the necessary criteria for achieving data consistency across multiple volumes.