Derek Suzuki
2004-Mar-08 13:25 UTC
[Ocfs-users] A couple more minor questions about OCFS and RHE L3
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 side.> -----Original Message----- > From: Wim Coekaerts [mailto:wim.coekaerts@oracle.com] > Sent: Saturday, March 06, 2004 10:36 PM > To: Derek Suzuki > Cc: 'ocfs-users@oss.oracle.com' > Subject: Re: [Ocfs-users] A couple more minor questions about OCFS and > RHEL3> 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. > >