oracle 建议在AIX 上设置 cio/dio 属性时的一些注意点



The CIO/DIOrecommendations for filesystems containing Oracle Files are:


Data Base Files (DBF)

++ Use CIO or no mount options for extremely sequential I/O

NOTE:
Oracle generally recommends placing the block change tracking file on the samedisk as the database files.



Redo Log/Control Files

++ Use CIO or DIO

Archive Log Files

++ Do not use CIO or DIO


Flashback Log Files

++ Flashback Log files should use CIO, DIO, or rbrw

Oracle Binaries

++ Do not use CIO or DIO

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