Solution : https://service.sap.com/sap/support/notes/1643080 (SAP Service marketplace login required)
Summary : Key words : Related Notes :
This SAP Note addresses issues with database connectivity due to inaccessible connection information stored in the Secure Storage in File System of AS ABAP. The problem arises for systems using Sybase ASE as the underlying database and having a SAP kernel version of 7.20 EXT with a patch level of 100 or above. To resolve this, configure the environment variable and profile parameter as outlined in detailed steps in SAP Note 1639578. The configuration involves setting the profile parameter ‘rsdb/ssfs_connect’ to 1 and the environment variable ‘rsdb_ssfs_connect’ to 1 for
sap standalone tools environment variable rsdb_ssfs_connect, /usr/sap/<sid>/<inst>/work, db connect user/password, installation/system copy procedure, profile parameter rsdb/ssfs_connect, set profile parameter, -database-specific parts, minimum patch level, earlier patch level, 20 ext patch level 100
1639578 SSFS as password storage for primary database connect 1606654 SYB: SAP Business Suite 7i2010 on Sybase ASE (obsolete)