A volume is a logical group of physical memory units (disks). A volume can be a part of a physical disk, an entire physical disk, or a fully structured memory system consisting of several memory units.
The database system differentiates between data volumes and log volumes. Every database instance has both log volumes and data volumes. A volume is addressed using a directory path, which can be changed.
The number of data volumes and log volumes that you can define for a database instance is determined by the general database parameters MAXDATAVOLUMES and MAXLOGVOLUMES. When you create a new database instance, you need to configure at least one data volume and one log volume. If required, you can add further volumes during database operation, until you reach the values specified in the database parameters MAXDATAVOLUMES or MAXLOGVOLUMES.
See also:
· Database Manager GUI, Managing Database Instances
· Database Manager CLI, Configuring Database Instances
·
Database Administration in CCMS: MySQL
MaxDB, Volumes
·
Database Administration in CCMS: SAP
liveCache, Volumes
· Concepts of the Database System, General Database Parameters and Tips for Creating a Database Instance