db_32K_cache_size

A few days ago I was asked to create a replica of a tablespace on production database.
OS of production was HP-UX and my test environment was Redhat 5.4(x86).
I created a database there and collect the exact tablespace creation script.
I run below tablespace creation script:

create tablespace MYTBS datafile '/data01/oradata/MYTBS/mytbs01.dbf' size 50M blocksize 32k;

and got below error:

ORA-00382: 32768 not a valid block size, valid range [2048..16384]

I thought that above error occurred as i didn't had 32K cache configured.

I i tried to configure as below:

SQL> alter system set db_32K_cache_size=5M;
alter system set db_32K_cache_size=5M
*
ERROR at line 1: ORA-32017: failure in updating SPFILE
ORA-00382: 32768 not a valid block size, valid range [..]

Then I search for it and found that not all cache size can be configured on all system.
It is Operating System dependent. As my OS was RHEL5.1 it was not possible to create db_32K_cache_size.

Please read metalink/MOS doc id 138242.1 for details