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Change the Block size of AIX 6.1

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Operating Systems AIX Change the Block size of AIX 6.1
# 1  
Old 07-07-2009
Change the Block size of AIX 6.1
Friends ,

I know the most cases the unix operation system holds the default block size 4MB . In AIX 5.3 and AIX 6.1 , also use upto 4 MB as its default block size .Now I want to change this value from 4MB to 8MB as AIX block size . Is it possible to change the block size value in AIX 6.1/5.3 ?

Waiting for kind reply ... ...
# 2  
Old 07-07-2009
Could you please explain what you mean by "block size"?

If you mean the tape block size: most devices use default block sizes of 512 bytes and are able to deal with a bunch of other block sizes too.

If you mean file system block sizes: the common block size is 512 bytes or (rarely) 2048 bytes (XENIX type file systems).

If you mean memory pages (pages! not blocks!): the standard page size in AIX is 4k, alternatively it is 4M.

Please clarify what you are talking about.

bakunin
# 3  
Old 07-12-2009
Block size of AIX 6.1
Thx bakunin for your kind reply ... ...

Actually I want to increase both :

1) File system block size , and
2) The memory page size
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