RE: FRA f/s block size
Date: Tue, 29 Mar 2011 11:53:06 -0400
Message-ID: <1B861F1ABE40A84AA92AD585B20C558B26FA6DAAAB_at_EX7T2-CV06.TDBFG.COM>
Sorry Nuno... Got linux on the brain wwwwwaaaaaaayyyyyyyyy too much.
I asked around from several AIX people I know and the closest they suggested is nmon for AIX:
http://www.ibm.com/developerworks/wikis/display/WikiPtype/nmon
Can't see it providing the block level detail you might be wanting but in terms of aggregated ... Maybe ... Assuming you haven't stumbled onto it on your own that is.
Rui Amaral
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-----Original Message-----
From: oracle-l-bounce_at_freelists.org [mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Nuno Souto
Sent: Monday, March 28, 2011 10:46 AM
Cc: oracle-l_at_freelists.org
Subject: 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!...
-- Cheers Nuno Souto in sunny Sydney, Australia dbvision_at_iinet.net.au Amaral, Rui wrote,on my timestamp of 28/03/2011 10:15 PM:Received on Tue Mar 29 2011 - 10:53:06 CDT
> 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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