Re: [Evms-devel] Re: evms plugin for hptraid support <<<pre-alpha>>>

[Wilfried Weissmann]

Sergey Vlasov wrote:
> On Fri, 27 Feb 2004 22:16:33 +0100 Wilfried Weissmann wrote:
>
>
> > this is my attempt to add support for the ataraid devices to the 2.6 
> > kernel. the code is as far as possible from being mature and useable as 
> > one could imagine (i have not even requested any plugin-ids for the evms 
> > engine). for now it only detects the HPT370A controller, because of i am 
> >  checking the pci-ids of the controller to prevent that any non-raid 
> > disks are stolen by the raid module. this would happen with the current 
> > ataraid code from the kernel v2.4.
>
>
> I'm not sure if this PCI ID checking is a good thing.  With ataraid
> drivers, if your FakeRAID controller gets broken for some reason, you
> can just attach the disks to any available IDE controller and get
> access to your data.  With the proposed PCI ID check this ability will
> be lost.
>
> The problem with stale RAID superblocks on disks may be solved by
> adding a command to clear the RAID superblocks without touching the
> rest of data.

I can create a configuration option that controls or disables the PCI 
check. Claiming all disks that have raid signatures is a great feature 
for debugging and disaster recovery, but I think that if this is the 
default then it is more trouble than it is worth.

Regards,
Wilfried
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/