symantec NBU 备份Oracle 11g
/user/openv/下的备份日志报错
Recovery Manager: Release 11.2.0.3.0 - Production on Mon Sep 17 14:36:11 2012
Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
connected to target database: testdb (DBID=123456)
using target database control file instead of recovery catalog
RMAN> 2> 3> 4> 5> 6> 7> 8> 9> 10> 11> 12> 13> 14> 15> 16> 17> 18> 19> 20> 21> 22> 23> 24> 25> 26> 27> 28> 29> 30> 31> 32> 33> 34> 35> 36> 37> 38> 39> RMAN> 2> 3> 4> 5> 6> 7> 8> 9> 10> 11> 12> 13> 14> 15> 16> 17> 18> 19> 20> 21> 22> 23> 24> 25> 26> 27> 28> 29> 30> 31> 32> 33> 34> 35> 36> 37> 38> 39>
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03009: failure of allocate command on ch00 channel at 09/17/2012 14:36:13
ORA-19554: error allocating device, device type: SBT_TAPE, device name:
ORA-27211: Failed to load Media Management Library
Additional information: 2
RMAN> RMAN>
Recovery Manager complete.
检查带库、和脚本都没有问题，网络解析也没问题
解决方法：
symantec nbu在备份是需要调用oracle lib库文件，symantec bin目录下提供了此脚本
[oracle@testdb bin]$ pwd
/usr/openv/netbackup/bin
[oracle@testdb bin]$ ls oracle_link
oracle_link
[oracle@testdb bin]$ ./oracle_link
All Oracle instances should be shutdown before running this script.
Please log into the Unix system as the Oracle owner for running this script
Do you want to continue? (y/n) [n] y
LIBOBK path: /usr/openv/netbackup/bin
ORACLE_HOME: /oracle/app/oracle/product/11.2.0/db_1
Oracle version: 11.2.0.3.0
Platform type: x86_64
Linking LIBOBK:
ln -s /usr/openv/netbackup/bin/libobk.so64 /oracle/app/oracle/product/11.2.0/db_1/lib/libobk.so
Done
再次启动备份，问题解决