Release Notes

25 Dell PS Series: Space Borrowing for Snapshots and Replicas | TR1084 | version 2
Writing 40 GB of data to the volume and creating a replica changes the current replica volume reserve to 50 GB. (40 GB
of data + 10 GB current replica volume reserve = 50 GB).
Total replica reserve is a percentage of current replica volume reserve. As the total replica reserve is 200%, and the
current replica volume reserve is now 50 GB, 200% of 50 GB results in 100 GB of total replica reserve. 100% of the 50
GB (50 GB) are in use in the current replica volume reserve, and a remaining 100% of the 50 GB (50 GB) is available for
additional replicas in the total replica reserve.
Even though there is plenty of borrowable space on the secondary group, the replication failed because the volume
total replica reserve, 100 GB, exceeds the secondary group delegated space of 95 GB. Remote replicas can borrow
beyond the total replica reserve, but the total amount of configured reserve space must fit within the delegated space.
If there is insufficient delegated space on the secondary group, the system will require manual administrative
intervention to increase the amount of delegated space.