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Re: fsync() madness




On Mon, Apr 21, 2008 at 6:11 PM, Uwe Thiem <uwix@xxxxxxx> wrote:
>  Sync or no, no filesystem can completely avoid data loss or even FS
>  corruption on power cuts. That is so because all modern harddrives
>  come with internal caches. Whatever the FS does, those internal
>  caches can be dirty at the time of a power cut.

My opinion is that any drive that does not flush its caches to disk
when the OS tells it to do so is a faulty disk. I know that such disks
exist, but not all disks show this behavior.

Bart.
 
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