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 ... ...
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
Thx bakunin for your kind reply ... ...
Actually I want to increase both :
1) File system block size , and
2) The memory page size