10.3.5 Fixed Allocations for Databases in the Flash Cache
The ALTER IORMPLAN
command has a new attribute called flashcachesize
which enables you to allocate a fixed amount of space in the flash cache for a database. The value specified in flashcachesize
is a hard limit, which means that the database cannot use more than the specified value. This is different from the flashcachelimit
value, which is a "soft" maximum: databases can exceed this value if the flash cache is not full.
flashcachesize
is ideal for situations such as Cloud and "pay for performance" deployments where you want to limit databases to their allocated space.
For details, see the following:
-
Managing I/O Resources chapter in the Oracle Exadata System Software User's Guide
-
ALTER IORMPLAN
command in the Oracle Exadata System Software User's Guide