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Suspended state.
• Resume - If the migration state is Suspended, this returns it to Waiting and allows MPS
to again begin scheduling migration runs.
• Reread policy - Tells the MPS to refresh its migration policy information by rereading
the policy.
Pending Operations. When the MPS cannot respond immediately to a Control command, a
command may be saved as pending. Any such pending operations are displayed here.
Purge Attributes Tab. This panel contains the current purge status for this storage class. This tab
appears only on the MPS Disk Storage Class Information window.
Policy Name. The name of the purge policy assigned to this storage class.
Policy ID. The ID of the purge policy assigned to this storage class.
State. The current purge state for this storage class. Possible values are:
• None - This storage class, as configured, is not a candidate for purging.
• Running - A purge on this storage class is in progress.
• Waiting - Purging is not taking place at this time. The start of the next purge is waiting
until criteria specified in the purge policy are met.
• Suspended - Purging on this storage class has been suspended.
Start Time. The date and time when the most recent purge run started. It may still be running.
End Time. The date and time when the last purge run completed.
Total Units Processed. The amount of space in the storage class which has been purged, in
bytes.
Control. This button can be used to send commands to the MPS regarding purging on this
storage class. Click on the button to drop down a list of control options. These are:
• None - Nothing has been selected for the purge Control.
• Start - If the purge state is Waiting, this starts the purge and puts it into the Running state.
• Stop - If the purge state is Running, this stops the purge and puts it into the Waiting state.
• Suspend - If the purge state is Waiting or Running, this puts the purge into the Suspended
state.
• Resume - If the purge state is Suspended, this returns it to Waiting and allows MPS to
again begin scheduling purge runs.
• Reread policy - Tells the MPS to refresh its purge policy information by rereading the
policy.
Pending Operations. When the MPS cannot respond immediately to a Control command, a
command may be saved as pending. Any such pending operations are displayed here.
HPSS Management Guide November 2009
Release 7.3 (Revision 1.0) 255