Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

[Mark Knecht]

On Fri, Feb 12, 2010 at 1:06 AM, Mick <michaelkintzios@×××××.com> wrote:
> On Tuesday 09 February 2010 16:31:15 Mark Knecht wrote:
>> On Mon, Feb 8, 2010 at 4:37 PM, Mark Knecht <markknecht@×××××.com> wrote:
>> <SNIP>
>>
>> > There's a few small downsides I've run into with all of this so far:
>> >
>> > 1) Since we don't use sector 63 it seems that fdisk will still tell
>> > you that you can use 63 until you use up all your primary partitions.
>> > It used to be easier to put additional partitions on when it gave you
>> > the next sector you could use after the one you just added.. Now I'm
>> > finding that I need to write things down and figure it out more
>> > carefully outside of fdisk.
>>
>> Replying mostly to myself, WRT the value 63 continuing to show up
>> after making the first partition start at 64, in  my case since for
>> desktop machines the first partition is general /boot, and as it's
>> written and read so seldom, in the future when faced with this problem
>> I will likely start /boot at 63 and just ensure that all the other
>> partitions - /, /var, /home, etc., start on boundaries divisible by 8.
>>
>> It will make using fdisk slightly more pleasant.
>
> I noticed while working on two new laptops with gparted that resizing Windows
> 7 and creating new partitions showed up small blank partitions (marked as
> hidden) in between the resized, and/or the new partitions.  If I recall
> correctly these were only a few KB each so rather small as such.  I am not
> sure why gparted created these - could it be related to the drive
> automatically aligning partitions to this 4K sector size that is discussed
> here?
> --
> Regards,
> Mick
>

http://lkml.indiana.edu/hypermail/linux/kernel/0902.3/01024.html

Cheers,
Mark