Re: Filesystem blocksize for archive logs on AIX
- From: "Rich Jesse" <rjoralist3@xxxxxxxxxxxxxxxxxxxxx>
- To: oracle-l@xxxxxxxxxxxxx
- Date: Mon, 28 Oct 2013 11:00:59 -0500 (CDT)
Nuno writes:
> In my dbs - with 11.2.0.3 Oracle and Aix 7.1 (both P6 and P7) I am using
> JFS2 and 4K blocksize for the file systems across the board.
> I am also using 8K block size for DB files (bigfiles) and 4K for all
> redo logs - with the "_" parameter that enables setting the redo block
> size.
So, a 4K agblksize and 8K DB_BLOCK_SIZE?
> We use a VMAX SAN with 4Gbps FC cards for P6 and 8Gbps FC cards for the P7.
Interesting! I wonder how the VMAX compares with the XIV for performance.
I don't think I'll be using any undocumented parameters, but your setup
seems to work very well for you from those numbers.
How many members in your redolog groups?
Thanks!
Rich
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