SATA SCSI Id assignments - two drives being assigned the same Channel/Id/Lun on boot

[Nigel Wade]

Claude Jones wrote:
> In the thread "mount doesn't mount on boot-up" we have found a 
> problem with the way my SATA drives are being ID'd, as seen below.
> 
> # cat /proc/scsi/scsi
> Attached devices:
> Host: scsi0 Channel: 00 Id: 00 Lun: 00
>   Vendor: ATA      Model: ST3160023AS      Rev: 3.05
>   Type:   Direct-Access                    ANSI SCSI revision: 05
> Host: scsi1 Channel: 00 Id: 00 Lun: 00
>   Vendor: ATA      Model: ST3300622AS      Rev: 3.AA
>   Type:   Direct-Access                    ANSI SCSI revision: 05
> Host: scsi1 Channel: 00 Id: 01 Lun: 00
>   Vendor: ATA      Model: WDC WD5000YS-01M Rev: 07.0
>   Type:   Direct-Access                    ANSI SCSI revision: 05
> 
> The first two entries appear to have the same Channel/Id/Lun - 

They are on different controllers, scsi0 and scsi1. Each controller has its own 
channels, ids and LUNs.


-- 
Nigel Wade, System Administrator, Space Plasma Physics Group,
             University of Leicester, Leicester, LE1 7RH, UK
E-mail :    nmw at ion.le.ac.uk
Phone :     +44 (0)116 2523548, Fax : +44 (0)116 2523555