[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]

Re: [libvirt] [TCK PATCH] block devices: allow specification of size for safety



On Wed, May 05, 2010 at 01:56:20PM -0600, Eric Blake wrote:
> On 05/05/2010 01:31 PM, Jim Meyering wrote:
> >> Can we provide the option to specify the device serial number so that
> >> it's really impossible to trash the wrong device?
> > 
> > Given that this is a good idea, next question is obviously
> > how to get the serial number.  One way seems to be via hdparm,
> > e.g., hdparm -i /dev/sda
> > 
> >     /dev/sda:
> > 
> >      Model=ST3320620AS, FwRev=3.AAK, SerialNo=9QF6ET0H
> 
> Great for SCSI, not so great for USB sticks:
> 
> # hdparm -i /dev/sdb

What does the following give you?

scsi_id --whitelisted --replace-whitespace --device=/dev/sdb

> /dev/sdb:
>  HDIO_DRIVE_CMD(identify) failed: Invalid exchange
>  HDIO_GET_IDENTITY failed: Invalid argument
> # echo $?
> 22
> 
> -- 
> Eric Blake   eblake redhat com    +1-801-349-2682
> Libvirt virtualization library http://libvirt.org
> 



[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]