48-bit LBA/137GB large hard disk capacity barrier

[OvErboRed]

Does partitioning help me get around the 48-bit LBA/137GB large hard disk
capacity barrier? Thanks.

[David H. Lipman]

No.

The Operating system needs to see the entire disk. This is done by installing WinXP SP1.

http://support.microsoft.com/default.aspx?scid=kb;en-us;303013

Dave



"OvErboRed" > wrote in message
6...
| Does partitioning help me get around the 48-bit LBA/137GB large hard disk
| capacity barrier? Thanks.

[Mark Derbyshire]

"David H. Lipman" > came forth with the
following in microsoft.public.windowsxp.hardware

> No.
>
> The Operating system needs to see the entire disk. This is done by
> installing WinXP SP1.
>
I don't see why

I can see my two 160Gb drives, and I haven't got SP1 installed

--
Mark

[David H. Lipman]

Mark:

Do a search for the file - Atapi.sys

When found....
Right Click on the file and report back the version.

Dave



"Mark Derbyshire" > wrote in message
...
| "David H. Lipman" > came forth with the
| following in microsoft.public.windowsxp.hardware
|
| > No.
| >
| > The Operating system needs to see the entire disk. This is done by
| > installing WinXP SP1.
| >
| I don't see why
|
| I can see my two 160Gb drives, and I haven't got SP1 installed
|
| --
| Mark

[David H. Lipman]

Well since you failed to reply...

You most likely installed a pre-SP1 patch that updated Atapi.sys to work w/48bit LBA.
WinXP SP1 rolled all pre-SP1 updates into WinXP SP1 therefore that is the preferred way to
fix the problem.

Dave



"David H. Lipman" > wrote in message
...
| Mark:
|
| Do a search for the file - Atapi.sys
|
| When found....
| Right Click on the file and report back the version.
|
| Dave
|
|
|
| "Mark Derbyshire" > wrote in message
| ...
| | "David H. Lipman" > came forth with the
| | following in microsoft.public.windowsxp.hardware
| |
| | > No.
| | >
| | > The Operating system needs to see the entire disk. This is done by
| | > installing WinXP SP1.
| | >
| | I don't see why
| |
| | I can see my two 160Gb drives, and I haven't got SP1 installed
| |
| | --
| | Mark
|
|

[Frank]

"David H. Lipman" > wrote in message
...
> Well since you failed to reply...
>
> You most likely installed a pre-SP1 patch that updated Atapi.sys to
work w/48bit LBA.
> WinXP SP1 rolled all pre-SP1 updates into WinXP SP1 therefore that
is the preferred way to
> fix the problem.
>
> Dave
>
>
>
> "David H. Lipman" > wrote in message
> ...
> | Mark:
> |
> | Do a search for the file - Atapi.sys
> |
> | When found....
> | Right Click on the file and report back the version.
> |
> | Dave
> |
> |
> |
> | "Mark Derbyshire" > wrote in message
> | ...
> | | "David H. Lipman" > came forth with
the
> | | following in microsoft.public.windowsxp.hardware
> | |
> | | > No.
> | | >
> | | > The Operating system needs to see the entire disk. This is
done by
> | | > installing WinXP SP1.
> | | >
> | | I don't see why
> | |
> | | I can see my two 160Gb drives, and I haven't got SP1 installed
> | |
> | | --
> | | Mark
> |
> |
>
>

[Mark Derbyshire]

"David H. Lipman" > came forth with the
following in microsoft.public.windowsxp.hardware

> Well since you failed to reply...

I presume you are in the USA from your posting time (-5:00 GMT), but here
in the UK I don't live with my nose glued to the pc screen, I have another
life in the evenings

>
> You most likely installed a pre-SP1 patch that updated Atapi.sys to
> work w/48bit LBA. WinXP SP1 rolled all pre-SP1 updates into WinXP SP1
> therefore that is the preferred way to fix the problem.

Version is ATM 5.1.2600.0.

--
Mark

[David H. Lipman]

That's the min. version for LBA. Like I said, you installed a pre-SP1 update.

Dave


"Mark Derbyshire" > wrote in message
...
| "David H. Lipman" > came forth with the
| following in microsoft.public.windowsxp.hardware
|
| > Well since you failed to reply...
|
| I presume you are in the USA from your posting time (-5:00 GMT), but here
| in the UK I don't live with my nose glued to the pc screen, I have another
| life in the evenings
|
| >
| > You most likely installed a pre-SP1 patch that updated Atapi.sys to
| > work w/48bit LBA. WinXP SP1 rolled all pre-SP1 updates into WinXP SP1
| > therefore that is the preferred way to fix the problem.
|
| Version is ATM 5.1.2600.0.
|
| --
| Mark

[Alex Nichol]

OvErboRed wrote:

>Does partitioning help me get around the 48-bit LBA/137GB large hard disk
>capacity barrier? Thanks.

No. That is fundamental to being able to access beyond the barrier at
the level of physical access. Everything is handled in LBA addresses,
and at that point the original size field overflows. You can set up
the disk as if it were under the limit - but waste the rest. (BTW - 137
is decimal billion; in considering partitioning, that corresponds to 128
of the 'binary based' GB used for that)


--
Alex Nichol MS MVP (Windows Technologies)
Bournemouth, U.K. (remove the D8 bit)

[Christopher L. Estep]

"David H. Lipman" > wrote in message
...
> Well since you failed to reply...
>
> You most likely installed a pre-SP1 patch that updated Atapi.sys to work
w/48bit LBA.
> WinXP SP1 rolled all pre-SP1 updates into WinXP SP1 therefore that is the
preferred way to
> fix the problem.
>
> Dave

Also, most *current* OEM CDs of Windows XP (Home or Professional) are SP1
slipstreamed variants which therefore don't need the pre-SP1 ATAPI patch for
larger HDs.

These slipstreamed versions of XP are *required* if any of the following are
true:

1. You have a hard drive larger than 137 GB that is not SCSI.
2. You have a Serial ATA hard drive (regardless of size).
3. You have any of the following Intel Pentium 4 processors: 2600C/2600E,
2800C/2800E, 3060B/3000C/3000E, 3200C/3200EE/3200E, 3400E/3400E-EE/3400EE.

Ask your dealer about OEM Windows XP Home/Professional including SP1 when
buying any of the above items.


Christopher L. Estep