Niall, I don't know . I need to try that too. thank you Gene Gurevich Oracle MySQL Operations - OMO 224-405-4079 "Niall Litchfield" <niall.litchfield To @gmail.com> genegurevich@xxxxxxxxxxxx cc 07/18/2007 05:40 oracle-l@xxxxxxxxxxxxx AM Subject Re: tunning an index build what happens if you try and do this without parallelisation - or with a lower degree? On 7/18/07, genegurevich@xxxxxxxxxxxx <genegurevich@xxxxxxxxxxxx > wrote: Hi all: I think I have posted on this issue before, but I can't find my old Emails so - sorry for the repeated question. Here is the situation. I am running oracle 9208 and have a 40G table with a lot of indices - mostly bitmap Their sizes are under 1G. These indices take about 20 to 30 minutes to build. That seems to be too long. I have just waited for 24 minutes to build a 82M index. The index is parallelized 4 way, the table is parallelized 6 ways. I have 2G sga and 1.5G pga. I do see a lot of IO waits (via vmstat) and I have UNIX team looking into that. I think I have plenty of memory and the parallelizm should be enough for a small index. Any thoughts on what else I should look at? thank you Gene Gurevich -- //www.freelists.org/webpage/oracle-l -- Niall Litchfield Oracle DBA http://www.orawin.info -- //www.freelists.org/webpage/oracle-l