full backup failed with error code 26
Hi all Thanks in advance for reading this post. any tips\ideas\advices are highly appreciated environment setting - NBU 7.7.2 on Windows 2012 R2 - 1x master server which also act as media server - all clients are VMware, communicated via Virtual Center, snapshot backup using LAN @ NBD - all backups goes to disk - daily @ incremental backup from Monday to Friday - weekly\monthly\yearly @ full on Saturday - no scheduled backup on Sunday issue - no issue with daily backup - 50% of full backup will failed with EXIT STATUS 26 (client/server handshaking failed) - restart of the jobs in stages will eventually completed based on reading, error 26 related to network or communication error. when the issue occured, i would test the network (bpclntcmd) and it turned out ok. later on, restart of the jobs also turn out ok. if too many failure, i have to restart it in stages, else it will resulted the same; error code 26. it suggest congestion of bottleneck somewhere but i have no clear path to look to in worst case, jobs will stuck & bpup/bpdown has to be done. a case logged to Symantec & he suspected issue with network sockets which to me not very clear or have a good understanding on it. hopefully good folks out there can help me with it. Symantec advice to clear the network socket connections which i have to request from NW team to do it but no logs/eviden shared it was done. totally dependent on NW team. And reboot the server which i confirmed rebooted based on server uptime. And still the issue keep on occuring and ruined my lovely weekend. Thanks again in advance for reading this post. any tips\ideas\advices are highly appreciated