To precisely control when snapshots are taken, you can create a snapshot schedule and attach it to one or more clusters. When you modify a snapshot schedule, the schedule is modified for all associated clusters. If a cluster doesn't have a snapshot schedule attached, the cluster uses the default automated snapshot schedule.
A snapshot schedule is a set of schedule rules. You can define a simple schedule rule based on a specified interval, such as every 8 hours or every 12 hours. You can also add rules to take snapshots on certain days of the week, at specific times, or during specific periods. Rules can also be defined using Unix-like cron expressions.
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