Messages in this thread | ![/](/images/icornerl.gif) | | Date | Wed, 12 Mar 2003 17:06:11 +0100 | From | Jens Axboe <> | Subject | Re: bio too big device |
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On Wed, Mar 12 2003, Andries Brouwer wrote: > On Wed, Mar 12, 2003 at 04:51:05PM +0100, Jens Axboe wrote: > > On Wed, Mar 12 2003, Andries Brouwer wrote: > > > On Wed, Mar 12, 2003 at 11:14:14AM +0100, Jens Axboe wrote: > > > > > > > So I still think it's much better stick with the safe choice. Why do you > > > > think it's only one drive that has this bug? It basically boils down to > > > > whether That Other OS uses 256 sector commands or not. If it doesn't, I > > > > wouldn't trust the drives one bit. > > > > > > I am not quite sure I understand your reasoning. > > > We have seen *zero* drives that do not understand 256 sector commands. > > > Maybe such drives exist, but so far there is zero evidence. > > > > Have you read the thread? You are obviously mistaken. > > Usually I am not, but I am happy to be corrected. > Please point out the facts. > > What I have seen is Paul Gortmaker, who reported on an old disk > that showed errors with 256 sector transfers. In an early post > he thought that that just was because the drive did not understand > 256-sector transfers, in a later post he reported that in fact > 256-sector transfers worked but that it was possible to > provoke a problem by having heavy load for an hour with > 256-sector transfers. > > I have an old drive that works fine but after three crashes > at 4 in the morning I decided that the load of updating > the locate database was more than it could handle. > Heavy load is something that kills many a machine.
Either the drive has the bug or not. I seriously doubt that 256 vs 248 sectors would put any extra strain on the drive.
If there's no real precedent wrt 256 sector bug in _any_ drive, then I'm fine with that change. Remember that we _did_ have it that way for a while, it was only changed back because of apparent problems. If those problems turn out to be non-existant, then the error was changing it away from 256 in the first place.
-- Jens Axboe
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