Thank you for the answer. The solution are:
SUN Ultra (sun4u) and old sun4 use 8k pagesize
sun4c, sun4m and sun4d user 4k pagesize.
My original post:
>>I just upgade our first SUN Ultra 1 from SOLARIS 2.5.1 to 2.6 and doing
>>the testing. I found one thing is very interesting. I type "pagesize"
>>command and found:
>> All SUN SParc with SOLARIS 2.5 and under, the pagesize is 4K
>> SUN Sparc with SOLARIS 2.5.1 and 2.6. the pagesize some are 4K and some
>>Does anyone know why? Is it possible I can change pagesize from 4k to 8k
>>or from 8k to 4k?
>>The reason I bring up this question is we have ORACLE database on SUN.
>>The ORACLE performance may relate to DB_BLOCK_SIZE. The ORACLE rule to
>>set DB_BLOCK_SIZE multiple of pagesize.
>>Thank you for your help.
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