NDMP also has limitations, though. The main limitation being that it does not support cross-filer recovery. You cannot back up a NetApp and restore it to a BlueArc filer -- even though both support NDMP. This is because NDMP is a communication protocol only; it does not specify the backup format. Each filer vendor therefore creates their own format, making NDMP restores between filer vendors not possible.
Nested MVs - A recent client was seeing a very large redo penalty from refreshing materialized views. Unfortunately they had to be refreshed very frequently, and were b...
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