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Don Burleson Blog 







ORA-27211: Failed to load Media Management Library Tips

Oracle Database Tips by Donald BurlesonDecember 13, 2015

Question:  I am getting this error on my RMAN backup command:

RMAN-03009: failure of allocate command on ch1 channel at 06/10/2011 06:10:46
ORA-19554: error allocating device, device type: SBT_TAPE, device name:
ORA-27211: Failed to load Media Management Library

How to I fix the ORA-19554 and ORA-27211 errors?


Answer:  The "failed to lead media management library" error can happen when is not linked to your backup vendor supplied rman library.  This is a very common RMAN error with dozens of possible causes, depending on the media management library tool (Legato Symantec).

You can try running SBTTEST to see if your MML is configured properly.

Here is the oerr output for the ORA-27211 error:

ORA-27211: Failed to load Media Management Library

Cause: User-supplied SBT_LIBRARY or could not be loaded. Call
to dlopen for media library returned error. See Additional
information for error code.

Action: Retry the command with proper media library. Or re-install
Media management module for Oracle.

Here are the directions for installing the media management library and running RMAN with the media manager layer.

Here is how to re-allocate the channel SBT_TAPE. 

RMAN> run {
2> allocate channel ch1 type 'SBT_TAPE';
3> release channel ch1;
4> }

using target database controlfile instead of recovery catalog
allocated channel: ch1
channel ch1: sid=35 devtype=SBT_TAPE
channel ch1: VERITAS NetBackup for Oracle - Release 6.0 (2005090703)

released channel: ch1

Legato on Windows:  The ORA-27211: Failed to load Media Management Library error in a MS-Windows environment is cause by library orasbt.dll. This library has to be located at C:Program filesLegatobin, (if you are using a Legato backup too1).




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