Messages in this thread | | | Date | Thu, 10 Dec 2009 23:26:39 -0800 | From | "H. Peter Anvin" <> | Subject | Re: ATA support for 4k sector size |
| |
On 12/10/2009 11:05 PM, James Andrewartha wrote: > Martin K. Petersen wrote: >>>>>>> "Matthew" == Matthew Wilcox <matthew@wil.cx> writes: >> >> Matthew> Lowest aligned logical block address=0 >> >> Matthew> This disagrees with Martin's assertion. >> >> The original roadmap was to transition to 4KB sectors in 2006, >> coinciding with the Vista release. >> >> Given how long this has taken (we're now talking ~2011 for GA) it may >> very well be that the alignment knobs will be unused because everybody >> will be using Vista or 7 by then. > > The plan does seem to have changed - WD's shipping 4k sector drives that > are sane and require a drive jumper or tool for WinXP and old cloning > utilities. > > http://techreport.com/discussions.x/18115 > http://wdc.com/en/products/advancedformat/ > http://www.wdc.com/wdproducts/library/whitepapers/en/2579-771430-A00.pdf >
Even more important, the alignment can be changed as opposed to being fixed for the manufacture of the disk.
-hpa
-- H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf.
| |