Netbacakup 7.5 sharepoint backup with sql alias

Hello team,

I'am trying with netbackup 7.5 to backup sharepoint farm,  containing  SQL aliases ->spqsl  (Windows 2012 for Sharepoint Farm Servers ,  SQL 2013 using SQL Alias for the farms.) , but got the following infos :

- Error bpbrm(pid=5360) bpcd on SPSQL exited with status 48: client hostname could not be found
- Info bpbkar32(pid=0) done. status: 48: client hostname could not be found  

how can avoid such backup problems regarding MS sharepoint , and make a successfull backup ?

N.