Extended storage backup error

Hello,

Backup for HANA with extended storage is failing woth error:

backup could not be completed: [110112] Extended storage backup error : [SAP][ODBC Driver]Database connection limit exceeded SQLSTATE: HY000

Even though there are no active connections to extended storage, backup is failing with this error. Parameter value for maximum connections has been set to 100.

Can u suggest how to address this issue?

Thanks,

Manjunath