CA ERwin Model Manager Implementation Guide

Storage Parameters3. Run the following query to verify the Rollback segment configurationchanges:SQLWKS> select SEGMENT_NAME, INITIAL_EXTENT, NEXT_EXTENT,MIN_EXTENTS,MAX_EXTENTS, STATUS from dba_rollback_segs;The result is:SEGMENT_NAME INITIAL_EX NEXT_EXTEN MIN_EXTENT MAX_EXTENT STATUSSYSTEM 51200 51200 2 121 ONLINERB_TEMP 102400 102400 2 121 OFFLINERB1 6291456 6291456 2 121 ONLINERB2 6291456 6291456 2 121 ONLINERB3 6291456 6291456 2 121 ONLINERB4 6291456 6291456 2 121 ONLINERB5 6291456 6291456 2 121 ONLINERB6 6291456 6291456 2 121 ONLINERB7 6291456 6291456 2 121 ONLINERB8 6291456 6291456 2 121 ONLINERB9 6291456 6291456 2 121 ONLINERB10 6291456 6291456 2 121 ONLINERB11 6291456 6291456 2 121 ONLINERB12 6291456 6291456 2 121 ONLINERB13 6291456 6291456 2 121 ONLINERB14 6291456 6291456 2 121 ONLINERB15 6291456 6291456 2 121 ONLINERB16 6291456 6291456 2 121 ONLINE18 rows selected.TablespacesTo improve performance you can create more than one tablespace for indexes.Then, after you install the software, you can move some indexes to the othertablespaces.The following table lists the suggested initial sizes for DATA and INDEXtablespaces:Tablespace Small Medium LargeDATA 200 MB 500 MB 1 GBINDEX 200 MB 250 MB 500 MBDATA and INDEX tablespaces with these initial sizes can accommodate at leastten models or versions.Appendix B: Oracle Tuning Recommendations 67