Oracle : Ошибка ORA-27196

"skgfpbk: sbtpcbackup returned error"
*Cause: sbtpcbackup returned an error. This happens when a proxy backup
is begun.
*Action: This error is returned from the media management software which is
linked with Oracle. There should be additional messages which
explain the cause of the error. This error usually requires
contacting the media management vendor.

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