Juri Haberland wrote:
> thomas graichen <list-linux.sgi.xfs@xxxxxxxxxxx> wrote:
> > just out of curiousity: how does xfs interact with things like
> > noflushd which reduce the disk flushing for more effective ide
> > poweroff possibilities ... is the flushing below the fs layer
> > so that it should all work transparently or may it result in
> > problems with xfs (or journaling fs in general)?
> Hi Thomas,
> well, I cannot speak for xfs but with ext3 the disk will only spin
> down once; after this it will be constantly restarted by the update
> mechanisms of ext3 (commit interval is 5 seconds).
ext3's commit only runs if there is dirty data to be committed.
Running ext3 with a kupdate interval of 15 minutes lets the disks
spin down nicely.