Networker

Re: [Networker] client backups through firewall disconnecting after 2 hours!

2007-09-05 10:51:19
Subject: Re: [Networker] client backups through firewall disconnecting after 2 hours!
From: "Coty, Edward" <Edward.Coty AT AIG DOT COM>
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Date: Wed, 5 Sep 2007 10:46:57 -0400
 
Check the firewall port timeout. It is definitely the firewall. The
firewall team needs to up the timeout on inactive ports to whatever time
you think it will take to backup the savesets. The initial service port
opened between client and server(7937-9936)needs to remain open for the
duration of the backup. This port is idle while the data traverses the
firewall via the connection port. If the service port which is idle
closes the backup will fail. 

Hope this helps.  

EDWARD COTY
LEAD STORAGE ENGINEER, LCNA
WORK - 973-533-2098
CELL - 973-296-0918
EDWARD.COTY AT AIG DOT COM

-----Original Message-----
From: EMC NetWorker discussion [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU] On
Behalf Of mark wragge
Sent: Wednesday, September 05, 2007 10:20 AM
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Subject: [Networker] client backups through firewall disconnecting after
2 hours!

hi, i have inherited a backup of clients through a firewall using
firewall rules already configured. I have three clients that backup
through the firewall using the existing rules. All three clients fail
after approx 2 hours. The smaller savesets on these clients complete
successfully. The two windows clients always fail at the same time (2
hours - 5 savesets 13gb completed). The unix client fails around the
same time but can sometimes backup about 25gb before failing.
   
  How can i determine if the cause of failure is related to the fact
that these clients go through a firewall? There are no error messages on
the firewall logs during the time that the backup occurs or at the time
that the backup stops.
   
  How can i determine if the cause of failure is related to the number
of firewall ports that are open on the client. The open ports are
7937-7941and this is set using nsrports (these ports and rules were
determined by previous engineer from EMC). The daemon.log shows no error
- it says backup done and then restarts the saveset.
   
  Is it the firewall disconnecting the client backup OR are the
networker services failing? We used to think that there was someting
wrong with the filesystem on one client but now that we have added two
more clients with the same errror it appears that the common link is the
firewall.
   
  Thanks for any help, Mark 

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