IBM RELEASE 7.3 - Manual (Page 257)

Field Descriptions
Storage Class Name. The name assigned to this storage class.
Storage Class ID. The numeric ID of this storage class.
Storage Class Type. The class of media assigned to this storage class (tape or disk).
Subsystem Name. The name of the storage subsystem for which the storage class information is being
displayed.
Total Space. For tape storage classes this reports the total capacity of the storage class in virtual volumes
(VVs).
Free Space. For tape storage classes this reports the number of unwritten virtual volumes (VVs) in the
storage class.
Partially Filled VVs. The number of tapes that have been written, but have not yet reached EOM.
Space Used. The percent of storage space in the storage class which is used. This is calculated from
Total Space and Free Space and reported as a percentage.
Warning Threshold. For tape storage classes, this value is a count of free tape volumes. When the
number of free volumes in this storage class drops below this level, the MPS will send a warning alarm to
SSM.
Critical Threshold. For tape storage classes, this value is a count of free tape volumes. When the
number of free volumes in this storage class drops below this level, the MPS will send a critical alarm to
SSM.
Note that the disk threshold reaches the warning level when the percent of used space rises
above the threshold value, while the tape threshold reaches the warning level when the free
volume count drops below the threshold value.
If you wish to disable the threshold so it will not generate any alarms, set this field to 100
percent for disk, 0 volumes for tape.
Threshold Status. The current used space threshold status. Possible values are OK, Warning, and
Critical.
Migration Attributes. This panel contains the current migration status for this storage class.
Policy Name. The name of the migration policy assigned to this storage class.
Policy ID. The ID of the migration policy assigned to this storage class.
State. The current migration state for this storage class. Possible values are:
•
None - This storage class, as configured, is not a candidate for migration.
•
Running - A migration on this storage class is in progress.
•
Waiting - Migration is not taking place at this time. The start of the next migration is
waiting until criteria specified in the migration policy are met.
•
Suspended - Migration on this storage class has been suspended by the system
HPSS Management Guide November 2009
Release 7.3 (Revision 1.0) 257