Database Tuning (MOSC)

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Redo log block size on 11.2

edited Nov 12, 2011 1:56AM in Database Tuning (MOSC) 3 comments
Oracle 11.2 allows the DBA to define the block size for redo logs:

http://tinyurl.com/6co7u2e

The DBA guide is mostly concerned with the redo wastage. The available
options are 512B, 1K and 4K. The 4K size is recommended for the newer
disks, with 4K sector. On Linux, however, the vast majority of file
systems use 4K blocks which leads me to the conclusion that there would
be better blocking factor for large ETL type operations with 4K redo log
block size. Did anyone experiment with that? Are there any experiences
whatsoever?

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