On Tue, Jun 30, 2009 at 1:01 PM, Bill Davidsen<davidsen@xxxxxxx> wrote: > Leslie Rhorer wrote: >>>> <snip> >> I may have to rethink my position on using raw drives. If I >> partition the drives, I can make the partition a bit smaller than the >> whole >> drive, allowing for the addition of a future drive whose size is a bit >> off. >> I hate to waste space, but being stuck with an undersized or limping array >> is worse. >> > > Some manufacturers use the HPA (host protected area) to reduce the size > available to the user. You will see reference to this in the dmesg output. > There is a tool to let you see/set HPA, but I can't put my hand on the info > right now, the one I have is out of date, so I won't mention it. Any recent version of hdparm can get/set HPA for LBA-48 drives. That feature went in a couple years ago. And it is the only tool I know that works with LBA-48 drives. (ie. drives larger than 128 GiB). If your version is too old you can get a new version off of sourceforge I believe. Greg -- Greg Freemyer Head of EDD Tape Extraction and Processing team Litigation Triage Solutions Specialist http://www.linkedin.com/in/gregfreemyer Preservation and Forensic processing of Exchange Repositories White Paper - http://www.norcrossgroup.com/forms/whitepapers/Forensic%20Processing%20of%20Exchange%20WP%20final.pdf The Norcross Group The Intersection of Evidence & Technology http://www.norcrossgroup.com -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
