Strategy for PCM Lock AllocationAllocate PCM locks based on blocks in cache, not on diskPlan for more datafilesTreat each datafile separatelyGive special treatment to the SYSTEM tablespaceSeparate read-only and modifiable dataSeparate indexes from tablesAdd locks when you add a datafileFine-Tuning Lock AllocationWhat Kind of Locks to Use?Hashed locksFine-grained locksFixed locksReleasable locksHow Many Locks to Allocate?