A small and silly question regarding libata

A small and silly question regarding libata

[Rogério Brito]

Hi there.

I have a small question regarding libata.

Using the plain IDE subsystem the Host Protected Area of a given HD is
disabled and this gives me more room for my files:

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
hda: Host Protected Area detected.
	current capacity is 156299375 sectors (80025 MB)
	native  capacity is 156301488 sectors (80026 MB)
hda: Host Protected Area disabled.
hda: 156301488 sectors (80026 MB) w/2048KiB Cache, CHS=65535/16/63
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

What is the current status with libata for PATA devices?


Regards, Rogério Brito.

-- 
Rogério Brito : rbrito@{mackenzie,ime.usp}.br : GPG key 1024D/7C2CAEB8
http://www.ime.usp.br/~rbrito : http://meusite.mackenzie.com.br/rbrito
Projects: algorithms.berlios.de : lame.sf.net : vrms.alioth.debian.org

Re: A small and silly question regarding libata

[Alan Cox]

> hda: 156301488 sectors (80026 MB) w/2048KiB Cache, CHS=65535/16/63
> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
> 
> What is the current status with libata for PATA devices?

You can choose to ignore it with libata.

Re: A small and silly question regarding libata

[Rogério Brito]

First of all, thank you very much Alan.

On Oct 19 2008, Alan Cox wrote:
> > hda: 156301488 sectors (80026 MB) w/2048KiB Cache, CHS=65535/16/63
> > - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
> > 
> > What is the current status with libata for PATA devices?
> 
> You can choose to ignore it with libata.

Some clarification here: do you mean with ignore_hpa=1 here?

>From a quick reading of the code in libata-core.c, it seems that the
code tries to disable hpa, if possible. Is that correct?

I now regret having partitioned an HD under a 2.4 kernel. :-( I'm
wasting 10MiB according to bc. :-(

I wish that USB enclosures would also allow things like hpa to be
disabled.


Thank you very much for your help, Rogério Brito.

-- 
Rogério Brito : rbrito@{mackenzie,ime.usp}.br : GPG key 1024D/7C2CAEB8
http://www.ime.usp.br/~rbrito : http://meusite.mackenzie.com.br/rbrito
Projects: algorithms.berlios.de : lame.sf.net : vrms.alioth.debian.org