On the SMS Volume Status Define panel, you define the relationship between the DASD volume in the pool storage group and each system in the SMS complex.

Volume Serial Numbers

Lists the volumes defined to the storage group.

System/Sys Group name

Lists the systems you defined in the base configuration.

SMS Volume Status

Lists the relationship between a DASD volume and each system in the SMS complex. DASD volumes have both a physical (actual) and a logical (system-defined) connection to systems in the SMS complex. You are responsible for maintaining consistency between these two types of connections.

For a system to have access to a data set, you need to define one of the types of access from the system to a storage group, and you need to define one of the five types of access from the storage group to a DASD volume (ENABLE, DISALL, DISNEW, QUIALL, and QUINEW for both types of access). You must ensure that a physical connection exists from the DASD volume to the system, and the MVS status of the DASD volume must be ONLINE.

See Defining system access to pool and VIO storage groups for an explanation of the SMS statuses. The volume statuses show the relationships between each system in the SMS complex and a given DASD volume in the pool storage group.

When a system attempts to allocate a data set, it proceeds in order through the following checks with respect to the current system:

1. Storage group status-ENABLE/DISALL/DISNEW/QUIALL/QUINEW/NOTCON
2. SMS volume status-ENABLE/DISALL/DISNEW/QUIALL/QUINEW/NOTCON
3. MVS volume status-ONLINE/OFFLINE