Howto: implement AMD SB9xx RAID5 support in dmraid

[Mark-Willem Jansen]

Hello,

Later this day I will apply the patch. But patching the kernel will be more cumbersome. The 
present kernel running om my system is 3.2.0 and the patches found on the web are for 
older kernels. But maybe the module dm-raid.ko included in the kernel can be helpful.

Regards,

Mark-Willem

> Date: Mon, 2 Apr 2012 17:42:12 +0400
> From: astarta at rat.ru
> To: markwillem at hotmail.com
> CC: psusi at ubuntu.com
> Subject: Re: Howto: implement AMD SB9xx RAID5 support in dmraid
> 
> hello,
> 
> You may try the attached patch to support RAID5 in pdc dmraid format. It 
> works OK for me.
> Be sure to patch the kernel itself to support dm-raid45 target.
> 
> 
> On 04/02/2012 02:59 AM, Phillip Susi wrote:
> > -----BEGIN PGP SIGNED MESSAGE-----
> > Hash: SHA1
> >
> > On 04/01/2012 04:21 PM, Mark-Willem Jansen wrote:
> >> ERROR: pdc: zero sectors on /dev/sdd
> >> ERROR: pdc: setting up RAID device /dev/sdd
> > It looks like sectors() in pdc.c is missing the case for computing the size of a RAID5.  For that matter, there appears to be no #define for PDC_T_RAID5, so you will need to add one and add it to the mapping table in type() and fix sectors() to handle it and probably a few other things.
> >
> >
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> -- 
> С уважением,
> Astarta
> Администратор Форума "Крысиный Бум"
> http://rat.ru/forum/index.php
> 
> “The Linux philosophy is 'Laugh in the face of danger'.
> Oops. Wrong One. 'Do it yourself'. Yes, that's it.”
> (c) Linus Torvalds.
> 
 		 	   		  
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