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Unaligned AIO/DIO on inode 230305773 by oracle; performance will be poor

mwadminSep 7 2012 — edited Apr 15 2013

Hi All,

I'm running Redhat 5 using ext4 and notice that every day I see in the /var/log/messages this error message:

kernel: EXT4-fs (dm-5): Unaligned AIO/DIO on inode 230305773 by oracle; performance will be poor

It only logs this message once per day. It also will generate this error just after I start up the database. I have a ticket logged for over a month with Oracle support and they want me to log a ticket with Redhat on this. I don't understand how this is an O/S issue when clearly the error happens when the database starts up. On top of that, I don't see this error with any ext3 filesystems.

There is an article I found that mentions that it is an application issue: http://askubuntu.com/questions/118140/unaligned-aio-dio

Has anyone else seen this error?

Thanks

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Locked on May 13 2013

Added on Sep 7 2012

#11g, #general-database-discussions, #linux, #oracle

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