Displaying storage group status using ISMF

You can display a storage group’s status in each system in the SMS complex by using the LISTSYS line operator in ISMF. The storage group must be a pool type, and it must be part of the active configuration.

Perform the following steps to display a storage group's status.

Display the Storage Group Application Selection panel (select option 6 from the ISMF Primary Option Menu for storage administrators).
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Supply values to create a list of storage groups. For example, you could use the following to create a list of storage groups with names that begin with SGNAME:
- CDS Name: 'ACTIVE'
- Storage Group Name: SGNAME*
- Option: 1, List. This displays the Storage Group List panel.
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Type LISTSYS in the Line Operator column next to the desired pool type storage group on the Storage Group List panel. This shows the SMS Storage Group Status Display.

Requirement: If a volume has been initialized with LABEL as an SMS device, the storage group must be defined in the active configuration in order for space information to be displayed when the LISTSYS line operator is issued.

Note: The information provided by LISTSYS differs from that provided by LISTVOL, because the information for the two commands comes from different sources.

The Total Space for Storage Group value is the total capacity of all the online volumes belonging to storage group SGNAME01, of all the volumes that have a status of ENABLE.

MB-TOTAL: Total number of MB belonging to the storage group
MB-FREE: Total number of free MB belonging to the storage group
% FREE: Percentage of free storage group space

Requirement: Space information exists for a volume only if the volume has at least one SMS-managed data set allocated on it.

The Group Space Available for Allocation value represents the sum of all volume space that is currently available to each system online to MVS. The fields contain values only if the SMS SG Status value is ENABLE.

MB-TOTAL: Total available space in MB
MB-FREE: Total available space in MB that is free
% FREE: Percentage of total available space that is free