Ext3 behavior on power failure

John Anthony Kazos Jr. jakj at j-a-k-j.com
Wed Mar 28 13:17:42 UTC 2007

>  If you fsync() your data, you are guaranteed that also your data are
> safely on disk when fsync returns. So what is the question here?

Pardon a newbie's intrusion, but I do know this isn't true. There is a 
window of possible loss because of the multitude of layers of caching, 
especially within the drive itself. Unless there is a super_duper_fsync() 
that is able to actually poll the hardware and get a confirmation that the 
internal buffers are purged?

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