On Mon, Dec 22, 2008 at 1:18 PM, Ulrich Windl
<ulrich.wi...@rz.uni-regensburg.de> wrote:
> I think since ZBR (Zone Bit Recording) the number of sectors per cylinder is
> variable. thus it makes no sense for any higher-level disk software to try to 
> deal
> with heads or cylinders. Since ATA (about 1990) only the controller on the 
> disk
> knows the tracks, heads, and cylinders. The rest is just logic. Therefore SCSI
> (nad now LBA) just uses logical block numbers.

At least with IET, changing the heads/sector values for the exported
disk does improve speed. See also
http://www.mail-archive.com/open-iscsi@googlegroups.com/msg01664.html.

Bart.

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