For example, enter the following in session 1: Set the command ID to a string such as sess2 in the job running in session 2: If you run the SET COMMAND ID command in the RMAN job, then the CLIENT_INFO column displays in the following format: For example, the following shows sample output: The rows that contain the string rman channel show the channel performing the backup. For example, run the following statement, where sid_in_rman_output is the number from the RMAN message: Then, run the following statement, substituting the sid_in_rman_output and serial number obtained from the query: This statement has no effect on the session if the session stopped in media manager code. Often, this error occurs when you delete archived logs with an operating system command, which means that RMAN is unaware of the deletion. The method of returning exit status is a detail specific to the host operating system rather than the RMAN client. A second way is to search the RMAN output for the string RMAN-00569, which is the message number for the error stack banner. To terminate an Oracle Database process that is not responding in the media manager: Query V$SESSION and V$SESSION_WAIT as described in "Using V$ Views for RMAN Troubleshooting". When you specify DELETE INPUT without the ALL keyword, RMAN deletes only one copy of each input log. RMAN makes up to five attempts to get the enqueue and then fails the job. If the channel allocation fails, then the database generates a trace file in the USER_DUMP_DEST location that contains the error that caused the channel allocation to fail. In this scenario, you attempt a backup and receive the following error messages: In one common scenario, you restore a backup control file created through a non-Oracle mechanism, and then open the database without the RESETLOGS option. All RMAN errors are preceded by this error message.

In each session, set the COMMAND ID to a different value after allocating the channels and then back up the desired object. Scripting on this page enhances content navigation, but does not change the content in any way. After an SBT function is returned from the media manager, this row disappears. To correlate a process with a channel during a backup: In an active session, run the RMAN job as usual and examine the output to get the sid for the channel. Internally the Delphix Engine knows if the archive log backup was successful or not, but to Oracle it appears the backup was unsuccessful, so the archive log backup is never valid for recovery from Oracle's point of view. The message stack is as follows: When RMAN needs to back up or resynchronize from the control file, it first creates a snapshot or consistent image of the control file. The RPC updates the information in the view to indicate when it starts and finishes. For example, on Linux execute a kill -9 command: Some platforms include a command-line utility called orakill that enables you to terminate a specific thread. For example, backup jobs often hang simply because the tape device has completely filled the current cassette and is waiting for a new tape to be inserted. For example, enter: Open the database with the RESETLOGS option. In this scenario, you list the database incarnations registered in the recovery catalog and see a database with the name UNKNOWN: One way you get the DB_NAME of UNKNOWN is when you register a database that was once opened with the RESETLOGS option. By default, the database expects to find the media management library at $ORACLE_HOME/lib/libobk.so on UNIX, or %ORACLE_HOME%/bin/orasbt.dll on NT. Identify the basic type of error according to the error range chart in Table 23-2 and then refer to Oracle Database Error Messages for information about the most important messages. No rows are visible until new backup jobs are shown in V$RMAN_BACKUP_JOB_DETAILS. Consult your media manager documentation for details. For example, enter: Mount the database if it is not already mounted. These should identify the real failure in the media management layer. For example, to terminate recovery after applying log sequence 15, enter: In this scenario, you back up the database, then run the DUPLICATE command. See your media manager documentation for details.). Confirm that the program is installed and included in the system path by typing sbttest at the command line: If the program is operational, then you should see a display of the online documentation. If sbttest returns 0, then the test ran without error, which means that the media manager is correctly installed and can accept a data stream and return the same data when requested. You can end the session using a SQL ALTER SYSTEM KILL SESSION statement. The warning about the media manager resources still applies in this case. The Oracle Database sid is different from the operating system process ID. In this scenario, an RMAN backup job starts as normal and then pauses inexplicably: If a backup job is hanging, that is, not proceeding, then several scenarios are possible: A server-side or media management error occurred. If you had created the backup control file through the RMAN BACKUP command or the SQL ALTER DATABASE BACKUP CONTROLFILE statement, then the database would have required you to reset the online logs. The catalog connection and the default channel appear to suspend, because they are waiting for RMAN to tell them what to do. The recovery catalog indicates that the highest RECID is 100, but the control file indicates that the highest RECID is 90.

Query the target database to determine the value of the NLS_CHARACTERSET parameter. You tell RMAN to perform a backup and delete the input archived redo logs afterward in the following script: You then run a crosscheck to make sure the logs are gone and find the following: RMAN deleted one set of logs but not the other. hpe check protector data patch level need It is better-suited for the case in which you are copying your database to a second system, where you may not want to keep the history from the control file for the copy of the database on the second system, or where you might drop a few datafiles or change the online logs by editing your control file. You may have more than one library in the operating system path, and the database is loading the wrong one. If the program encounters an error, then it provides messages describing the failure. Note, however, that writing SBT trace messages is the responsibility of the media management software, not the Oracle database or RMAN. Sometimes you may find it difficult to identify the useful messages in the RMAN error stack. See your operating system-specific documentation for more information.

In this example, a single sbtbackup has taken 1500 seconds, so RMAN is waiting on the media manager to finish its write operation.

After you have determined which job is creating the enqueue, you can do one of the following: Wait until the job holding the enqueue completes, Cancel the current job and restart it after the job holding the enqueue completes. See the media manager documentation to interpret this error. Output from an SBT 1.1-compliant media management layer is similar to the following: The "Additional information" provided uses error codes specific to SBT 1.1. You start RMAN and connect to the new target database and the recovery catalog on machine 2. Consequently, RMAN sets the DB_NAME column to UNKNOWN when creating the DBINC record. Thus, if the restored backup cannot be made consistent without applying the online redo logs, then duplication fails with RMAN-06023 errors because RMAN is looking for backups created before the most recent archived log. Typically, there is no need to refer to the trace file or sbtio.log in such a case. For example, if your library is called /vendor/lib/some_mm_lib.so, then run a command such as the following, making sure to specify whatever PARMS settings are required by your media manager: If the channel allocation fails, then check the trace file again to see whether you can learn anything new. As a consequence, various records are added to the recovery catalog during the restore and recovery. RMAN error messages have an RMAN- prefix. The cause can be addressed only by the media management vendor. RMAN usually stops responding because a channel connection is waiting in the media manager code for a tape resource. The conflict is usually caused when two jobs are both backing up the control file, and the job that first starts backing up the control file waits for service from the media manager. Check that the media manager is functioning normally, and contact the media management vendor's technical support for assistance. The reason for canceling is that the USING BACKUP CONTROLFILE clause stamps the control file as a backup, which then permits OPEN RESETLOGS. In this method, you must first obtain the sid values from the RMAN output and then use these values in your SQL query. Lists the events or resources for which sessions are waiting. Finding and terminating the processes that are associated with the server sessions is operating system-specific. This file is created when an ORA-600 or ORA-3113 error message occurs, whenever RMAN cannot allocate a channel, and when the database fails to load the media management library. The sbttest program passes all environment parameters from the shell but RMAN does not. RMAN reports errors as they occur. Sometimes RMAN checks V$SESSION before the RPC has indicated it has started, which in turn generates the following message: If a message stating "RPC call ok" does not appear in the output immediately following the message stating "RPC call appears to have failed", then the backup job encountered an internal problem. After the unresponsive channels in the media manager code are terminated, the RMAN process detects this termination and exits, removing all connections except target connections that are still operative in the media management layer. Sometimes it is useful to identify exactly what a server session performing a backup and recovery job is doing. So, the media management software is not able to write to the device because it is in use or there is a problem with it. The database does not recognize the control file as a backup control file: to the database it looks like the current control file. Also, Oracle Database and the third-party media vendors generate useful debugging output of their own. You receive the following error stack: The DUPLICATE command recovers to archived redo logs, but cannot recover into online redo logs. In previous Delphix versions when an archive log was successfully backed up to the Delphix tape library client from RMAN, it would mark the backup as successful. The control file and the recovery catalog are now not synchronized. The trace file should have the complete path name of the media management library loaded by the database as well as any other media manager errors or operating system errors. RMAN displays the error passed back to it by the media manager. For example, the following output indicates that RMAN has been waiting for the sbtbackup function to return for 10 minutes: To identify which server sessions correspond to which RMAN channels, you can query V$SESSION and V$PROCESS. The main information of interest returned by SBT 1.1 media managers is the error code in the "Additional information" line: Referring to Table 23-3, you discover that error 7005 means that the media management device is busy.