Optimizer related init parameters

[VIVEK_SHARMA]

How Good/advisable are the following 4 parameters’ Values in a Hybrid Application? Are there any know ill-effects of the same?   Application – Banking (Hybrid) Solaris 9 Oracle 9.2      optimizer_max_permutations=8000  optimizer_index_cost_adj=10  optimizer_index_caching=50  optimizer_dynamic_sampling=4       Some INFO :- Database has 6000 Concurrent Users accessing We do ONLY INDEX Scans with exceptional FTS . FTS if present occur only on SMALL Tables (a few Hundred Rows) FTS if unchecked greatly harm our performance Stripe Unit Size 64K Oracle Block Size 8K   Will Give any info required   Thanks