Re: testing - 3ware adapters swap

[Christophe Busson <c.busson@agematis.com>]

Le 21/02/2006 14:33, Stephen Woodbridge a écrit :
> You can control the order of the devices in by the order of the 
> modules you specify in:
>
> /etc/yaird/Default.cfg
>
> Add the modules for your controller in the order you want the 
> controllers recognized and rebuild you initrd.img based on this. If 
> you are not using yaird, then the same should work for whatever tool 
> chain builds your initrd.img
>
> I had a similar problem when I made some changes to my system and 
> fixed it doing this.
>
> -Steve
>
> Christophe Busson wrote:
> > Hi,
> >
> > I'm currently running stable release on a supermicro system composed 
> > of 1 Xeon Irwindale, 2GB of RAM and 2 3ware raid adapters (one 
> > 8006-2LP with 2x80GB raid1 for the system, and one 9500S-12 with 
> > 12x400 GB raid50 for storage). Yes, this is for a NAS :)
> >
> > disk setup :
> > 2x80GB raid 1 (sda)
> > /dev/sda1 -> /
> > /dev/sda2 for lvm (swap, home, var, usr, tmp)
> > 12x400GB raid50 (sdb)
> > /dev/sdb1, /dev/sdb2, /dev/sdb3, /dev/sdb4 for lvm (exported 
> > filesystems)
> >
> > As I was having some poor performances with the rewriting on the NAS, 
> > I've googled for the problem and found that maybe there was a glitch 
> > in the kernel so I decided to give a try to the testing release and 
> > to go with the 2.6.15-1 kernel.
> >
> > Upgrade was OK, apt installed everything at the right place but when 
> > I rebooted the system in order for the changes to take place, then I 
> > ended up on ash. I was like "WTH is going on" and noticed that for 
> > some reason, after grub started the kernel, the 2 adapters were 
> > logically swapped. Basically my sda1 is now pointing to the 1st drive 
> > of my 9500S-12 adapter.
> > If I reboot with my 2.6.8-11 kernel, everything is going fine.
> >
> > Any of you got any idea of what is going wrong and what I could do to 
> > fix that ?
> >
> > I'm pretty sure it isn't a x86_64 problem but I'm posting here 
> > because it's the debian release i'm using on the server :)
> >
> > Regards,
> > Christophe Busson
Edited my /etc/mkinitramfs/modules and added the modules in the order I 
wanted them to be loaded by initrd.
dpkg-reconfigure linux-image-2.6.15-1-em64t-p4-smp and grub-install 
/dev/sda (just to be sure) made the trick.

Thx for the hint.
C.