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RMAN Backup to ZFS Hanging (Doc ID 2003371.1)

Last updated on AUGUST 04, 2018

Applies to:

Oracle Exadata Storage Server Software - Version 11.2.3.3.0 to 12.1.2.1.2 [Release 11.2 to 12.1]
Oracle Database - Enterprise Edition - Version 11.2.0.3 to 11.2.0.3 [Release 11.2]
Information in this document applies to any platform.

Symptoms

RMAN backup to ZFS is hanging while writing the backup piece.

The RMAN Backup of the controlfile to local filesystem is not hanging while the backup to ZFS is hanging all the time.

Taking RMAN out of the picture, the copy of a file via Operating System commands to ZFS is also hanging.

Changes

 The kernel of the server trying the backup was upgraded to 2.6.39-400.248.3.el6uek.x86_64.

Cause

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