[Ocfs-users] A couple more minor questions about OCFS and RHE L3

Derek Suzuki DSuzuki at ZipRealty.com
Mon Mar 8 11:24:58 CST 2004

	Wim, I opened a TAR on this issue, and was informed that async+ocfs
is supported (as opposed to "works") as of 1.0.9-12.  If this is not the
case, then it sounds like there may be a miscommunication on the Oracle

> -----Original Message-----
> From: Wim Coekaerts [mailto:wim.coekaerts at oracle.com]
> Sent: Saturday, March 06, 2004 10:36 PM
> To: Derek Suzuki
> Cc: 'ocfs-users at oss.oracle.com'
> Subject: Re: [Ocfs-users] A couple more minor questions about OCFS and

> well - tough one, it works, but the big issue is that you rredologfile
> need to be contiguous on disk, otherwise you might have 
> failures, exact
> same goes for rhel3 as rhas21. you can see that by running debugocfs
> eg :
> /ocfs/log/foo1.dbf -> debugocfs -f /log/foo1.dbf /dev/sdXXX
> that will show how many offsets (should only have one) in the extents
> if its more than 1, dd it over with a very large blocksize and see if
> that ends up being 1 contig file.
> if you do that, everything should work, however, there just 
> hasn't been
> enough real testing with aio, need to ggather more evidence.
> the reason the logfiles are annoying is because he way aio is
> implemented and how we call it, it cannto handle short io's or non
> contig aio submits.

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