Before you begin: You must allocate an SCDS.

Perform the following steps to define storage groups.

1. Select option 6, Storage Group, from the ISMF Primary Option Menu for storage administrators. This displays the Storage Group Application Selection panel.

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2. Supply values on the Storage Group Application Selection panel:

   CDS Name

   This is the name of an SCDS. ISMF primes the CDS Name field with the last used SCDS name. The default is 'active'. This represents the currently active configuration, but you cannot define or alter the storage groups for the active configuration.

   Storage Group Name

   This is the storage group name. ISMF primes the Storage Group Name field with the name last used within ISMF. The default is an asterisk, *, which represents all storage groups in the specified control data set name.

   Storage Group Type

   See Storage group types for more information.

   Option

   Select option 3, Define. This displays the panels for defining the storage group. These vary with the storage group type.

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3. Complete the panels for defining the storage group. See Storage group types for more information.

You can leave any of the Storage Group Define panels at any time without saving the storage group by issuing the Cancel command.

The remainder of this topic provides the panel sequences in the Storage Group Application and explains the attribute values for each type of storage group.