Re: Disk copy, last sector problem

[viro]

On Tue, Jun 29, 2004 at 06:16:25PM -0400, Bill Davidsen wrote:
> >So the copy will still miss the last sector ?
> >But the blockdev command is a working workaround ?
> >Are there any downsides of setting the block size to
> >512 bytes right at boot for all hard drives ?
> >What about 8kb sectors, do they work ?
> 
> Given that the change from 1k to 4k, I suspect that going to 512 will 
> suck rocks off the bottom of the ocean in terms of performance. I don't 
> think that 8k works in 2.4, it didn't work in my 2.6, but the error was 
> "device busy" so it may not be related to anything but having no spare 
> drive.

First of all, it *will* work without any "blockdev command" crap.
And no, performace is not a problem - we get requests immediately
merged and unlike regular files we don't spend time figuring out
where the hell next block is.
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