DBW进程trace文件报sfdstblkini : skgfrgblkdev failure : block device =

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Linux x86-64，Oracle 11.2.0.4 RAC，发现DBW0进程的trace文件内容存在非常多的如下信息：

*** 2015-03-31 22:21:31.015

*** SESSION ID:(1545.1) 2015-03-31 22:21:31.015
*** CLIENT ID:() 2015-03-31 22:21:31.015
*** SERVICE NAME:() 2015-03-31 22:21:31.015
*** MODULE NAME:() 2015-03-31 22:21:31.015
*** ACTION NAME:() 2015-03-31 22:21:31.015

sfdstblkini : skgfrgblkdev failure : block device =
sfdstblkini : skgfrgblkdev failure : block device =
sfdstblkini : skgfrgblkdev failure : block device =
sfdstblkini : skgfrgblkdev failure : block device =
sfdstblkini : skgfrgblkdev failure : block device =
sfdstblkini : skgfrgblkdev failure : block device =
sfdstblkini : skgfrgblkdev failure : block device =
sfdstblkini : skgfrgblkdev failure : block device =
sfdstblkini : skgfrgblkdev failure : block device =
sfdstblkini : skgfrgblkdev failure : block device =
sfdstblkini : skgfrgblkdev failure : block device =
sfdstblkini : skgfrgblkdev failure : block device =
sfdstblkini : skgfrgblkdev failure : block device =
sfdstblkini : skgfrgblkdev failure : block device =
sfdstblkini : skgfrgblkdev failure : block device =
sfdstblkini : skgfrgblkdev failure : block device =
sfdstblkini : skgfrgblkdev failure : block device =

sfdstblkini : skgfrgblkdev failure : block device =

后通过查询MOS，发现该问题为Bug 16303932 - DBW LOG INVALID ERROR "KSFDSTBLKINI : SKGFRGBLKDEV FAILURE : BLOCK DEVICE"，不过该现象并会有什么影响，且已在12c中解决。

These messages are coming due to the following unpublished bug : -
Bug 16303932 - DBW LOG INVALID ERROR "KSFDSTBLKINI : SKGFRGBLKDEV FAILURE : BLOCK DEVICE"

Note that this issue exists in 11.2.0.2 and later.

It is fixed in 12.x releases.

However, as per our development team, this error doesn't cause any functionality issue. It can be ignored safely.

参考文档：Message In Trace File: Ksfdstblkini : Skgfrgblkdev Failure : Block Device = (文档 ID 1924695.1)

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