This problem occurs when VSC has trouble using isql to connect to an instance. VCS uses isql to connect and shut down instances. isql uses the interfaces file for the connection parameters. Validate that:
The interfaces file is defined in the release directory ($SYBASE) and is configured correctly.
The interfaces file contains definitions for each defined instance.
The release directory contains a SYBASE.sh or SYBASE.csh file and is configured correctly.
VCS uses the SA and SApswd commands with isql to connect and shut down instances. Use hares -display to verify the SA and SApswd attributes for the ASE resource:
hares -display aseres1 -attribute SA hares -display aseres1 -attribute SApswd
If necessary, use hares -modify to change the attributes:
hares -modify aseres1 SA sa hares -modify aseres1 SApswd ""