Re: [RFC] IBM Power RAID driver (ipr)

[Brian King <brking@us.ibm.com>]

Patrick Mansfield wrote:
> On Thu, Jan 22, 2004 at 02:02:48PM +0000, Christoph Hellwig wrote:
> 
>>On Wed, Jan 21, 2004 at 02:49:42PM -0600, Brian King wrote:
>>
>>>How about a flag in the scsi_device struct that an LLD could set in
>>>slave_configure, which would prevent upper layer drivers from binding
>>>to it?
>>
>>I'm not that happy about this.  But the other solutions I could think
>>of are ven worse.
>>
>>
>>>Then these devices could be found through the normal scsi scan
>>>and would have nice sysfs entries and sg devices for them. Not sure what
>>>we would call the flag... psuedo_device, fake_device?
>>
>>ghost? hidden?
>>
>>Could you cook up a patch?
> 
> 
> Why not just have the sd's show up? This is not much different then use of
> a volume manager. Finding the /dev/sg of the physical disk is the same
> problem as finding the sd.

We will still get errors logged when the partition table is read,
as the devices are also read protected.


-- 
Brian King
eServer Storage I/O
IBM Linux Technology Center