Re: Installation of Oracle 9.2 RAC on HP-UX Itanium

Morning Pascal:

Here's the ( old but still valid ) url reference http://www.oracle.com/technology//products/oracle9i/htdocs/9iRAChp.html ... as you noted oracle it was put out by the combination of oracle and hp resources hporaclectc. They also have a 9i to 10g migration guide.

I can send you a file that has our configured kernel parameters. One of the things you want to consider is how big your sga will be ... potentially up to the size of your installed memory. When oracle is allocating the shared memory it will get it in more than one chunk ( depending on how big the sga is ) if you don't have the shared memory parameter ( max size ? SHMMAX I think ) set correctly. ( Then ipcs -smb will show more than one allocation for oracle ).

Get familiar with how to manage and purge the shared memory and semaphores under rare conditions if nasty things happen you may have to remove some of the ( big ) allocations in there.

We use RAW devices the IO gain improvements by using RAW are significant. Then think about if you want symbolic links to the raw partitions that oracle will use ( especially useful at times in a emc environment with BCV type considerations or similar ). Something like /my_alias/raw_oracle_symlink => /dev/whatever/real_raw_partition )

At this time we are using 1 gig ethernet tcp switched interconnect. Hyperfabric is certainly something to consider or 10 gig ethernet ( which is where we are probably headed toward ).

If you have the time available I would advise ( even while you are doing all this planning ) to do your install once, document it, create a database, play around some. If you had to make compromises in this process that you are unfamiliar with then consider ripping it out and doing it fresh.

After your base install of 9.2.0.1 then do appropriate patching before creating a database. Received on Mon Jan 23 2006 - 07:03:45 CST