RE: FRA f/s block size
- From: "Amaral, Rui" <Rui.Amaral@xxxxxxxxxxxxxxxx>
- To: "'dbvision@xxxxxxxxxxxx'" <dbvision@xxxxxxxxxxxx>
- Date: Tue, 29 Mar 2011 11:53:06 -0400
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
Database Administrator
ITS - SSG
TD Bank Financial Group
220 Bay St., 11th Floor
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-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On
Behalf Of Nuno Souto
Sent: Monday, March 28, 2011 10:46 AM
Cc: oracle-l@xxxxxxxxxxxxx
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@xxxxxxxxxxxx
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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