The Maintenance window in the Model Manager workspace may be used to perform maintenance operations targeting versions added to the window from
The Model Manager Window and the
The Databases Window. This includes, for example, clearing
Built, Computed, and Plotted Data from model versions or
Permanently Deleting Models and Data Files. You can also use it as a browsing tool for exploring the total version footprint of items that you have added to the window from other windows in the workspace.
The versions under an Item Selection (

) or a
Search Result (

) are sorted in chronological order. A maximum of 100 most recently saved versions are initially shown. Click the triangle symbol for a
Show More table row (

) to append the next 100 versions to the table. You can set another value for this default page size in the
Result Page Size field on the
Model Manager page in the
Preferences dialog box.
The toolbar in the Maintenance window contains the following toolbar buttons:
The top level table row for an Item Selection (

) in the
Maintenance window is a representation of the item itself in the database. The
Settings window shows a summary of the item and its associated versions in the database.
This section shows the database of the item in the Database field and its item save type in the
Item save type field.
You can estimate the total disk space usage of versions targeted in the Maintenance window. From the
Disk Space Usage menu (

) in the
The Statistics Section on
The Maintenance Toolbar, select
Version Selection (

) or
Item Selection (

) to estimate the disk space usage for the current table selection. Select
All in Maintenance (

) to estimate the disk space usage for all versions in the
Maintenance window, independent of any table selection or if all
Show More table rows (

) have been expanded.
You can clear built, computed, and plotted data of model versions targeted in the Maintenance window. From the
Clear Computed Data menu (

) in the
The Computed Data Section on
The Maintenance Toolbar, select
Version Selection (

) to clear such data from the current selection of versions. For a selection of items, select
Item Selection (

) to clear all versions of the models
and their drafts. To
only clear the item’s drafts, select
Drafts of Item Selection (

). Select
All in Maintenance (

) to clear such data of all versions in the
Maintenance window, independent of any table selection or if all
Show More table rows (

) have been expanded.
Clearing computed data of versions in the database is done via batched transactions. You may stop the clearing at any point by clicking the Stop button, but all versions processed up to that point will already have been permanently cleared. Clearing a model version in itself does not physically delete the computed data — the data may, for example, be shared with other versions via deduplication. Once all batches of versions have been cleared, Model Manager will automatically proceed by permanently deleting all computed data that is no longer used by any version via a separate database cleanup operation.
You can permanently delete versions targeted in the Maintenance window. From the
Permanently Delete menu (

) in the
The Versions Section on
The Maintenance Toolbar, select
Version Selection (

) to permanently delete the current selection of versions. For a selection of items, select
Item Selection (

) to permanently delete all versions of the items
and their drafts. To
only permanently delete the item’s drafts, select
Drafts of Item Selection (

). Select
All in Maintenance (

) to permanently delete all versions in the
Maintenance window, independent of any table selection or if all
Show More table rows (

) have been expanded.
Model Manager does not allow permanently deleting a version if that version is referenced by another version that is not set to be deleted. If you include such a version when targeting an explicit selection in the
Maintenance window, the permanent deletion will be immediately canceled by Model Manager with nothing deleted in the database. If you include such a version for the
All in Maintenance option (

), that version will be excluded from the deletion but the deletion of other versions will still be allowed to proceed.
Permanently deleting versions in the database is done via batched transactions. You may stop the deletion at any point by clicking the Stop button, but all versions processed up to that point will already have been permanently deleted. Any data that potentially may be shared with other versions via deduplication will not be deleted during this initial batch processing. Once all batches of versions have been deleted, Model Manager will automatically proceed by permanently deleting data that is no longer used by any version via a separate database cleanup operation.