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Re: Support for 4KB sectors size disk ?

On Tue, Jan 12, 2010 at 05:04:44AM +0000, David Holland wrote:
> On Mon, Jan 11, 2010 at 10:07:42PM -0500, Thor Lancelot Simon wrote:
>  > No, they don't present 512 byte sectors to the host OS.  They present
>  > 512-byte sectors to *applcation code* running on the host -- this is
>  > because the host OS uses the additional space itself.  The
>  > sectors presented over the SCSI interface to the host are 524 bytes
>  > or, in some older designs, 528 bytes.  Yank a disk out of a storage
>  > array on one of these machines and see for yourself!
> ...and this is something we ought to be able to support going forward,
> if we can swing it.

I'm not sure that support for 'non power of 2' drives (below the disk
driver itself) is particularly useful.


David Laight:

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