We have our core banking DB running on Solris 11, oracle DB 19c version. The databases are two node (RAC). Generally we take the backup from node1 every time. For the last one month, we are trying to take the backup from NMC but every time it failed showing the below error:
RMAN-03009: failure of allocate command on CH1 channel at 06/22/2022 13:20:26 ORA-19554: error allocating device, device type: SBT_TAPE, device name: ORA-27211: Failed to load Media Management Library
We can take file system backup from the same server using NMC but unable to take RMAN backup. NMDA's configuration looks ok but is unable to take backup. Support case logged already but still no hope.
1. libok.so link is created several time, but still no result.
2. We can initiate oracle backup using RMAN script the node itself via networker server and take backup on the same pool which is used for RMAN backup from NMC. But somehow NMC backup is failing every time showing same error.
3. ddpconnchk showing every data domain path is successful.
If RMAN fails with the following error, ensure that NMDA and Oracle have the same bitness. Refer to the RMAN user guide for details on how to test that you have integrated the media management library correctly: ORA-19554: error allocating device, device type: SBT_TAPE, device name: ORA-27211: Failed to load Media Management Library Additional information: 25
The DBA should create the service name in each RCA node.
The provided resolution steps are not required for NMDA 9.2.
The NetWorker client can be configured using the RAC SCAN hostname.
The target DB service can be defined using the RAC SCAN hostname in TNSNAMES.ORA
Then again, the additonal info states, the resolution steps are not required for NMDA9.2, without stating if it can even encounter the same issue or if it would require another approach. I assume the former?