Announcement: New harddisk geometry next weekend

[Eric Kohl]

Hi!

I plan to change the standard harddisk geometry from the old 32 sectors 
and 64 heads geometry to the new 63 sectors and 255 heads geometry next 
weekend. The old disk geometry was used up to Windows NT4 and the new 
geometry is used since Windows 2000. So I guess it is time for ReactOS 
to make this change too. ;-)

This should improve the compatiibility with other OSs because every 
modern OS uses the new disk geometry.

Please note that you must delete and re-create all partitions on your 
virtual harddisk in order to get a clean partition table when the new 
disk geomerty is in use.

Regards,
Eric

[chris]

Sounds like a damn good idea, who needs compatability for ancient os like NT 
4.0?

----- Original Message ----- 
From: "Eric Kohl" [e-mail]
To: "ReactOS Development List" [e-mail]
Sent: Tuesday, November 22, 2011 8:17 AM
Subject: [ros-dev] Announcement: New harddisk geometry next weekend
> Hi!
>
> I plan to change the standard harddisk geometry from the old 32 sectors 
> and 64 heads geometry to the new 63 sectors and 255 heads geometry next 
> weekend. The old disk geometry was used up to Windows NT4 and the new 
> geometry is used since Windows 2000. So I guess it is time for ReactOS to 
> make this change too. ;-)
>
> This should improve the compatiibility with other OSs because every modern 
> OS uses the new disk geometry.
>
> Please note that you must delete and re-create all partitions on your 
> virtual harddisk in order to get a clean partition table when the new disk 
> geomerty is in use.
>
> Regards,
> Eric
>
> Ros-dev mailing list
> [e-mail]
> http://www.reactos.org/mailman/listinfo/ros-dev

[Javier Agustìn Fernàndez Arroyo]

"you must delete and re-create all partitions on your virtual harddisk"

You can do that within 1st stage setup, right?

2011/11/22 Александр [e-mail]
> 63 sectors is not optimal for SSD and Advanced Format HHD
>
> http://en.wikipedia.org/wiki/Solid-state_drive#Microsoft_Windows
> http://en.wikipedia.org/wiki/Advanced_Format
> 22.11.2011, 02:17, "Eric Kohl" [e-mail]:
>
> Hi!
>
> I plan to change the standard harddisk geometry from the old 32 sectors
> and 64 heads geometry to the new 63 sectors and 255 heads geometry next
> weekend. The old disk geometry was used up to Windows NT4 and the new
> geometry is used since Windows 2000. So I guess it is time for ReactOS
> to make this change too. ;-)
>
> This should improve the compatiibility with other OSs because every
> modern OS uses the new disk geometry.
>
> Please note that you must delete and re-create all partitions on your
> virtual harddisk in order to get a clean partition table when the new
> disk geomerty is in use.
>
> Regards,
> Eric
>
> Ros-dev mailing list
> [e-mail]
> http://www.reactos.org/mailman/listinfo/ros-dev
>
> --
> С наилучшими пожеланиями, Александр.
>
> Ros-dev mailing list
> [e-mail]
> http://www.reactos.org/mailman/listinfo/ros-dev

[Eric Kohl]

Javier Agustìn Fernàndez Arroyo wrote:
> "you must delete and re-create all partitions on your virtual harddisk"
>
> You can do that within 1st stage setup, right?

Yes, thats right!

[Pierre Schweitzer]

Hi Eric,

this sounds good! Once you'll be done with it, I'll go through GPT test
to see if this has fixed the FstubEx GPT backup table issue.
Thank you!

Regards,
Pierre

Le lundi 21 novembre 2011 à 23:17 +0100, Eric Kohl a écrit :
> Hi!
>
> I plan to change the standard harddisk geometry from the old 32 sectors 
> and 64 heads geometry to the new 63 sectors and 255 heads geometry next 
> weekend. The old disk geometry was used up to Windows NT4 and the new 
> geometry is used since Windows 2000. So I guess it is time for ReactOS 
> to make this change too. ;-)
>
> This should improve the compatiibility with other OSs because every 
> modern OS uses the new disk geometry.
>
> Please note that you must delete and re-create all partitions on your 
> virtual harddisk in order to get a clean partition table when the new 
> disk geomerty is in use.
>
> Regards,
> Eric
>
> Ros-dev mailing list
> [e-mail]
> http://www.reactos.org/mailman/listinfo/ros-dev

[Ameen Ross]

You've made your point by now...
Since Windows has only been optimized for SSD's since Win7, I don't 
think this is of much concern. Add to that the fact that you'd have to 
be insane to run ReactOS in it's current state on real (new) hardware.

Op 22-11-2011 10:22, ????????? schreef:
> http://download.microsoft.com/download/5/E/6/5E66B27B-988B-4F50-AF3A-C2FF1E6...
> See slide 10
> 22.11.2011, 02:17, "Eric Kohl" [e-mail]:
> Hi!
>
> I plan to change the standard harddisk geometry from the old 32
> sectors
> and 64 heads geometry to the new 63 sectors and 255 heads geometry
> next
> weekend. The old disk geometry was used up to Windows NT4 and the new
> geometry is used since Windows 2000. So I guess it is time for
> ReactOS
> to make this change too. ;-)
>
> This should improve the compatiibility with other OSs because every
> modern OS uses the new disk geometry.
>
> Please note that you must delete and re-create all partitions on your
> virtual harddisk in order to get a clean partition table when the new
> disk geomerty is in use.
>
>
> Regards,
> Eric
>
> _______________________________________________
> Ros-dev mailing list
> [e-mail] <mailto:[e-mail]>
> http://www.reactos.org/mailman/listinfo/ros-dev
>
> -- 
> ? ?????????? ???????????, ?????????.
>
> Ros-dev mailing list
> [e-mail]
> http://www.reactos.org/mailman/listinfo/ros-dev

[Carsten Krüger]

Hello,
> ReactOS have not to wate a time and copy all evolution steps.
> I think it is beter to skip one step and be modern!

configurable is the magic word ...
> Windows 7 behevor does not affect the old hhd (does not not make
> parformance lower)

wrong
The allignment is a problem in both directions.

best regards
Carsten

[Eric Kohl]

Александр wrote:
> ReactOS have not to wate a time and copy all evolution steps.
> I think it is beter to skip one step and be modern!
> Windows 7 behevor does not affect the old hhd (does not not make
> parformance lower)  and have benefits not only on SSD but on all new
> Advanced Format HDDs
> So to highlight we have two problems:
> SSDs
> AF HDDs

This is the ultimate goal, but you will have to be a little more patient.

BTW, you missed an even more important issue: Add PNP-support to the 
storage driver stack. We will need this to support USB storage devices too.

Regards,
Eric