I believe this is a bad solution. If exposing an element of a RAID array ( at any level ), now or ever in the future, allows anyone or anything the ability to touch the physical DASDI device, it has violated the most sacred rule of a RAID subsystem because it has jeopardized the data's integrity. Nothing should ever have the ability to touch a drive's data ( attached to a RAID adapter ) except the adapter's firmware. That being said ( and soapbox dismounted ), I will create a patch that sets the no_uld_attach flag - if that's the implementation the community thinks is appropriate. Jack -----Original Message----- From: Christoph Hellwig [mailto:hch@xxxxxxxxxxxxx] Sent: Wednesday, February 01, 2006 5:25 AM To: Hammer, Jack Cc: linux-scsi@xxxxxxxxxxxxxxx; James.Bottomley@xxxxxxxxxxxx Subject: Re: ServeRAID Seeing DADSI Devices On Tue, Jan 31, 2006 at 01:17:55PM -0500, Jack Hammer wrote: > A critical thing the ServeRAID driver MUST do is hide the physical > DASDI devices from the OS. It does this by intercepting the INQUIRY commands. No, it must not. What itu should do instead is to set the no_uld_attach flag. - : send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html