"When it comes to snapshots and backups, it is important to understand and specify whether to take application-consistent or crash-consistent copies," notes Antony Adshead in ComputerWeekly.
"Why does it matter? Because either crash-consistent or application-consistent copies might be just fine for your workloads - or they may not. There are important differences.
A crash-consistent copy is analogous to the state of data at the point at which hardware crashed or the power went down..."
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