Backup failing with media open error

Hi All,

Master Server: AIX 5.3 (NBU6.5.6)

Media server: Linux2.6.18 (NBU6.5.6)

Client server: AIX 7.1 (NBU 6.5.4)

Following is the error message  I am getting:

Oct 24, 2012 8:26:37 PM - Error bpbrm (pid=16145) from client g<client>: ERR - Could not open file /usr/openv/netbackup/db/config/shm/<client>_1351123671 to get shared memory information. Errno = 2: No such file or directory
Oct 24, 2012 8:31:38 PM - Error bptm (pid=16161) Could not open FT Client pipe for client <client>: unimplemented error code 114 (114)
Oct 24, 2012 8:31:43 PM - end writing
media open error  (83)

Client server is a SAN client and nbftclnt has been restarted as per the solution I could get on web but still no luck. Please help.

Best Regards,

DP