Sybase Database Backup

Question

Dear Expert,
I am using Sybase Database 15.0 with unix, as i new to Sybase please me  how to take backup of Sybase Database.
i get the below error
1> dump database pubs2 to 'd:\dump'
2> go
Msg 7205, Level 17, State 2:
Server 'BHAVANIPC', Line 1:
Can't open a connection to site 'SYB_BACKUP'. See the error log file in the ASE
boot directory.
Msg 7205, Level 18, State 3:
Server 'BHAVANIPC', Line 1:
Can't open a connection to site 'SYB_BACKUP'. See the error log file in the ASE
boot directory.
Also we opened the backup server
Thanks & Regards,
Akhila

Answer 1

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
          Example:
/data/ase1570 > showserver |grep backupserver
0 S sybase   19210 19209  0  80   0 -  5788 -      Aug01 ?        00:00:00 /data/ase1570/ASE-    15_0/bin/backupserver -SSYB_BACKUP -e/data/ase1570/ASE-15_0/install/SYB_BACKUP.log -N25 -C20 -    M/data/ase1570/ASE-15_0/bin/sybmultbuf
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
          Example:
1> sp_helpserver SYB_BACKUP
2> go
name       network_name   security_mechanism   server_principal   class      
status                                                                  
id cost
SYB_BACKUP SYB_BACKUP     NULL                 NULL               ASEnterprise
timeouts, no net password encryption, writable , enable login redirection
1 NULL
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
          Example:
1> SYB_BACKUP...sp_who
2> go
spid        status     loginame                       hostname     blk
cmd             
     1      sleeping   NULL                           NULL         0 
CONNECT HANDLER 
     2      sleeping   NULL                           NULL         0 
DEFERRED HANDLER
     3      runnable   NULL                           NULL         0 
SCHEDULER       
    11      runnable   NULL                           ASE1570      0 
SITE HANDLER    
    12      running    sa                             sgsinvm0256  0 
NULL           
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