AIX 4.3.2 on 64 bits not equal on 32 bits?

[Enhasmen]

Is AIX 4.3.2 on 64 bits and on 32 bits different?

I need know for problems with Oracle DB installation on cluster HACMP with 64 bits machine and 32 bits machine.

Thank in advance

 

[aixfan]

Aix 4.3.2 on 64-bit mode is different than AIX 4.3.2 with 32-bit mode. The 64-bit mode has many advantages, but specifically for databases, it gives the ability to address memory in 64-bit memory chunks which allows faster access to data.

For details on 64-bit see:

http://beta.austin.ibm.com/doc_link/en_US/a_doc_lib/aixins/inslppkg/bos_64bit.htm

I don't know what your specific Oracle/HACMP problem is, but you may want to check out

http://os.cc.biu.ac.il/documentation/oracle/8.1.5_doc/aix.815/a67728/req.htm#1001828

HTH

 

[Enhasmen]

My problem is Oracle say to me that it´s not supported Oracle DB on cluster with 32 bits machine and 64 bits machine. In fact, I have Oracle DB with on those kinds of machines and I never had any problem.

Thanks again

 

[aixfan]

Are you saying that you've had Oracle failover successfully, between 32- and 64- bit machines? I could see that working if the version of Oracle was 32 bit mode only, but if Oracle is 64-bit, then I would expect to see problems if it failed over to as 32- machine. At least performance issues. I wonder about how the SGA would function if it was initiately configured in 64- and after failover, was running as 32? However, I'm not an Oracle expert ....

HTH

 

[Enhasmen]

I have been examining our Oracle vesion on our machines and I have 32 bits Oracle version in all machines, then it´s works.

Thank you