RE: pa-risc to itanium migration

  • From: "Juan Miranda" <j.miranda@xxxxxxxxxxxx>
  • To: <CEHAMMON@xxxxxxxxx>, <oracle-l@xxxxxxxxxxxxx>
  • Date: Thu, 13 Nov 2008 09:14:30 +0100

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.

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