Try looking at this Symantec/netbackup tech note http://www.symantec.com/business/support/index?page=content&id=TECH136791&actp=search&viewlocale=en_US&searchid=1311646427656
We find it helps to open the netbackup pbx and vnetd ports. -----Original Message----- From: veritas-bu-boun...@mailman.eng.auburn.edu [mailto:veritas-bu-boun...@mailman.eng.auburn.edu] On Behalf Of Lawrence K. Chen, P.Eng. Sent: Monday, July 25, 2011 6:08 PM To: VERITAS-BU@MAILMAN.ENG.AUBURN.EDU Subject: [Veritas-bu] Port 1556 on clients? Recently, the DBAs have been upgrading to Oracle 11g, and we've upgraded to NetBackup 7.1. And, then one of the RMANs has been failing....last week. RMAN-00571: =========================================================== RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS =============== RMAN-00571: =========================================================== RMAN-03009: failure of backup command on oem_sbt_backup channel at 07/22/2011 08:51:32 ORA-19506: failed to create sequential file, name="7vmi2h8g_1_1", parms="" ORA-27028: skgfqcre: sbtbackup returned error ORA-19511: Error received from media manager layer, error text: VxBSAValidateFeatureId: Failed with error: Server Status: cannot connect on socket Did notice they were using 6.5 of the client, so we tried upgrading the client to 7.1. Didn't help. Our NBU admin is out this week at NetBackup training, and the DBAs are starting to panic running without RMAN backups. They currently have like 575GB of ASM storage, and tried to ask for 500GB of additional temporary ASM storage to local disk backups....given poor track record on return of temporary storage....they aren't likely to get it. Meanwhile, I happened to be poking around in the firewall logs...and see that our NBU media servers are trying (unsuccessfully) to connect to port 1556 on the host that the RMAN is failing on. We have never opened this port for backups anywhere, and can't find any reason why we should. Thoughts? RMANs are working on other clients, and this port isn't open in the firewalls for those either (though all the clients seem to have something listening on the port.) -- Who: Lawrence K. Chen, P.Eng. - W0LKC - Senior Unix Systems Administrator For: Enterprise Server Technologies (EST) -- & SafeZone Ally Snail: Computing and Telecommunications Services (CTS) Kansas State University, 109 East Stadium, Manhattan, KS 66506-3102 Phone: (785) 532-4916 - Fax: (785) 532-3515 - Email: lkc...@ksu.edu Web: http://www-personal.ksu.edu/~lkchen - Where: 11 Hale Library _______________________________________________ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu _______________________________________________ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu