You mentioned 'Sybase Database 15.0 with unix' on you post,
so you must make sure your backup server was started and working ok by following method:
- under unix command line, issue 'showserver' command to list servers online, and grep 'backupserver' only
$showserver |grep backupserver
- isql to connect to ASE15 server, and issue 'sp_helpserver SYB_BACKUP' to check if SYB_BACKUP server host is available ?
$isql -Usa -Psa_pwd -SASE15
1> sp_helpserver SYB_BACKUP
2> go
- isql to connect to ASE15 server, and issue 'SYB_BACKUP...sp_who' to test connection from ASE to Backup server is OK !!
$isql -Usa -Psa_pwd -SASE15
1> SYB_BACKUP...sp_who
2> go
if the above checking is all ok, then you should be able to dump database without problem !!
BTW, you must notice you are using SAP Sybase ASE 15.0 with Unix , so the dump directory should be Unix filesystem format such as '/backdir/pubs2.dmp' rather than Windows filesystem format such as 'd:\pubs2.dmp' !!
HTH ! Thanks !!
Regards,
Robert