On Mon, 27 May 2013 19:11:32 +1000 "Adam Goryachev" <mailinglists@xxxxxxxxxxxxxxxxxxxxxx> wrote: > On Mon, May 27, 2013 18:38, Andrea Bolandrina wrote: > > Hi Tudor. > > > > All disks I have report the same size, even though they are different > > brand/model > > Discussion on this list in the past would suggest the manufacturers have > agreed to make equal sized drives in future, so this shouldn't really be > an issue for 2TB drives or larger. There are also some overly smart BIOSes, which in certain motherboard models and versions are configured to automatically store a backup of the BIOS on the primary HDD. What they do is cut off a small area from the HDD's "tail" by establishing an HPA there, and put the BIOS copy on that area, possibly overwriting whatever was there previously. http://forums.overclockers.com.au/showthread.php?t=885212 http://matt.simerson.net/news/2009/07/22/hpa-host-protected-area http://www.gigabyte.com/webpage/8/article_04_bios_explained.htm The forum discussion linked cites the actual number to be 2113 sectors which is about 1 MB. Personally I always leave about 8 MB in the end of all disks just in case. -- With respect, Roman
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