Re: FRA f/s block size

I'm aware of what is available in Linux.
But I said Unix. As in Aix.
strace is a RPITA to use on something like RMAN.
Pity IBM - of all companies! - provides so little gut-view software for that.
Although there is probably some obscure add-on to Tivoli or similar to do all I need - meh!... 

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Nuno Souto
in sunny Sydney, Australia
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Amaral, Rui wrote,on my timestamp of 28/03/2011 10:15 PM:

For rhel 6 (similar in previous versions as well):

http://people.redhat.com/msnitzer/docs/io-limits.txt

more detail on the block devices files in sysfs:

http://www.mjmwired.net/kernel/Documentation/ABI/testing/sysfs-block


looking at queue size might help performance (depending on your i/o scheduler 
being used):

http://yoshinorimatsunobu.blogspot.com/2009/04/linux-io-scheduler-queue-size-and.html

one form of linux block tracing:

http://linux.die.net/man/8/blktrace

and example:

http://kb.fusionio.com/KB/a27/howto-capture-a-block-trace-in-linux.aspx

good ole strace also can give io and blocksize requests on running processes.




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