error in alter fragment

Hi, I have the following situation: There are several dbspaces in one instance, one dbspace is called dbspaceA, other is called dbspaceB. I have a table called table1 in dbspaceA There are no free space in the host and the dbspaceA is full. However, the dbspaceB has free space. I want to free up space in the dbspaceA When I run the SQL: alter fragment on table table1 init in dbspaceB the outpus is: 212: Cannot add index. 131: ISAM error: no free disk space and in the log appears WARNING: DBspace dbspaceA is full and then the SQL rolls back. Why is this behaviour ? My version is 11.50FC8 and runs in HP-UX Thanks in advance Roger.