Hello,
Regarding the shrink of some devices in SAP Sybase ASE database...
You can perform a shrink database in SAP Sybase ASE using the SAP Control Center version 3.3 (SCC). You can install this tool using the DVD Media of SAP Sybase ASE database.
Check the following following link:
http://infocenter.sybase.com: SAP Control Center 3.3 > SAP Control Center 3.3 for SAP Adaptive Server Enterprise > Manage and Monitor > Manage and Monitor the SAP ASE Environment > Databases > Manage Databases > Shrinking a Database
Kind regards,
João Dimas