Re: Howto tell kernel to use 4096 as granularity & minimum size?

From: Dave Chinner
Date: Sun Jul 20 2014 - 18:28:24 EST


On Sun, Jul 20, 2014 at 11:47:06AM -0700, Linda A. Walsh wrote:
> I have a hard disk with a "512e" sector size: emulated 512, really 4096.
>
> The disk returns a 512-byte size to drivers for compatibility.
>
> I can partition the disk and setup the allocation size
> to 4096, but I'd like to tell the kernel to use a
> virtual-size of 4096 for the sector as an additional
> performance 'hint', so nothing will even try to use
> smaller i/o's than that.

Just format the filesystem with 4k sector size.

Cheers,

Dave.
--
Dave Chinner
david@xxxxxxxxxxxxx
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