A vault store partition represents the physical location where the archived items are stored. A vault store can contain one or more vault store partitions. Backup Exec creates one vault store partition in each vault store by default.
As the data in a vault store grows, you can create more vault store partitions to provide additional capacity. You can specify a local drive or a network share as a location for a vault store partition. You cannot specify a path that is a subdirectory in the path for another vault store partition.
A vault store can contain many vault store partitions, but only one partition is open at a time. As data is archived, it is stored in the open partition. You can specify a vault store partition as open or closed by editing the partition properties.