Release Notes

21 Dell PS Series: Space Borrowing for Snapshots and Replicas | TR1084 | version 2
5.1.2 Space borrowing with snapshots and replication schedules
Space borrowing is also useful as it relates to snapshot and replication schedules. Because older snapshots and
replicas can borrow space and remain available even if the remaining reserve space runs low.
In this example, a volume is configured with 200% replica reserve. This means that 100% is dedicated to the current
replica volume reserve (10 GB), and the remaining 100% (10 GB) is reserved for additional replicas in the total replica
reserve, for a total of 20 GB.
The configured replication schedule allows a maximum of five replicas to exist. This could, perhaps, be a business
requirement to help ensure that daily replicas exist for the last five days.