Messages in this thread | | | Date | Tue, 30 Mar 2004 17:39:26 -0500 | From | Jeff Garzik <> | Subject | Re: [PATCH] barrier patch set |
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Chris Wedgwood wrote: >>For IDE, O_DIRECT and O_SYNC can use special "FUA" commands, which >>don't return until the data is on the platter. > > > On modern drives how reliable is this? At one point disk-scrubbing > software which used FUA (to ensure data was being written to the > platters) showed that some drives completely ignore this.
I'm suspicious of this, because of Bart's point... I haven't seen any PATA disks that did FUA, so it sounds like broken software.
Jeff
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