Messages in this thread |  | | | Subject | Re: ATA support for 4k sector size | | From | "Martin K. Petersen" <> | | Date | Wed, 25 Feb 2009 19:07:49 -0500 |
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>>>>> "hpa" == H Peter Anvin <hpa@zytor.com> writes:
hpa> Martin K. Petersen wrote: >> >> Modern Windows aligns the first partition on a 1 MB boundary. >> >> As far as disks go, initially the plan was to have "legacy" branded >> drives with 63-sector alignment. But I think that has been abandoned >> in favor of instant one-time formatting. I.e. you can pick your >> poison *once* and that formatting will be done in constant time. Any >> subsequent changes to blocking and alignment will require a real >> low-level format. >>
hpa> Why one-time?
It's a compromise to avoid hours of low-level formatting before you can use a drive. New drives will come from the factory formatted in a special way that can be switched instantaneously. But once you start writing you're stuck with it.
-- Martin K. Petersen Oracle Linux Engineering
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