On Wed, Oct 04, 2017 at 05:49:44PM +0100, Dr. David Alan Gilbert wrote:
> * Daniel P. Berrange (berra...@redhat.com) wrote:
> > The Linux kernel will query the SCSI "Block device characteristics"
> > VPD to determine the rotations per minute of the disk. If this has
> > the value 1, it is taken to
* Daniel P. Berrange (berra...@redhat.com) wrote:
> The Linux kernel will query the SCSI "Block device characteristics"
> VPD to determine the rotations per minute of the disk. If this has
> the value 1, it is taken to be an SSD and so Linux sets the
> 'rotational' flag to 0 for the I/O queue and w
On 10/04/2017 06:40 AM, Daniel P. Berrange wrote:
> The Linux kernel will query the SCSI "Block device characteristics"
> VPD to determine the rotations per minute of the disk. If this has
> the value 1, it is taken to be an SSD and so Linux sets the
> 'rotational' flag to 0 for the I/O queue and w
The Linux kernel will query the SCSI "Block device characteristics"
VPD to determine the rotations per minute of the disk. If this has
the value 1, it is taken to be an SSD and so Linux sets the
'rotational' flag to 0 for the I/O queue and will stop using that
disk as a source of random entropy. Ot
