In this Q uest white paper and on my SSD blog here, I report on how using a FusionIO flash SSD compares with SAS disk for various configurations – datafile, flash cache, temp tablespace and redo log. Of all the options I found that using flash for redo was the least suitable, with virtually no performance benefit:
That being the case, I was surprised to see that Oracle had decided to place Redo logs on flash disk within the database appliance , and also that the latest release of the exadata...(read more)![]()
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