Hello Some notes I hope will help you. This is for 10g and HPUX 11.23. - Install Oracle patchset (of course) AND individual patches published after patchset. - Install ALL the pathes for HP-UX from here: http://itresourcecenter.hp.com - HP-UX 11.23 don´t permit asynch i/o. You must use ASM, RAW or dbwr_slaves I used: hpux_sched_noage=180 disk_asynch_io=false filesystemio_options=directio dbwr_io_slaves=4 - Configure dbc_min_pct y dbc_max_pct ¡! (I use dbc_min =5 and dbc_max =8) - vx_ninode=40000 or it will eat a lot of CPU - This is very important: be prepared to get some querys running WORSE because the changes in the access plans. It´s a good idea to prepare a test system before final migration. Good luck! _____ De: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] En nombre de Hammond, Charles E. Enviado el: miércoles, 12 de noviembre de 2008 21:58 Para: oracle-l@xxxxxxxxxxxxx Asunto: pa-risc to itanium migration Good day all, I would appreciate hearing of any experiences of Oracle database migration from HP-UX PA-RISC to HP-UX Itanium, especially relative to Oracle spincount, cursor sharing, HP-UX config, and any other lurking gems. Environment: Oracle: 9.2.0.7 EE, OLTP avg sustained connects: ~3900 HP PA-RISC: HP9000/800/rp8420, 14 cpus, 48877mb, os: 11.11 HP Itanium: rx 7640, 12 cpus, 49017mb, os: 11.23 SAN: EMC, 1GB interconnects, single NIC Thanks.