SQL*Plus: Release 11.1.0.7.0 – Production

AIX dbtest 1 6 00C786154C00

RMAN-00571: ===========================================================

RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============

RMAN-00571: ===========================================================

RMAN-03009: failure of backup command on t1 channel at 03/14/2013 01:03:55

ORA-19502: write error on file "incr2_810002889_17o4fae9_1_1", block number 1 (block size=512)

ORA-27030: skgfwrt: sbtwrite2 returned error

ORA-19511: Error received from media manager layer, error text:

   ANS0278S (RC157)  The transaction will be aborted.

其中ORA-19511: Error received from media manager layer, error text这一句提示很明显，与media manager有关，这里使用的是TSM，就是TSM出了问题。

原因主要有如下: