Re: Disable SATA LPM (Link Power Management)
- Date: Fri, 6 Apr 2018 14:20:15 -0400
- From: Dan Ritter <dsr@xxxxxxxxxxxxxxxx>
- Subject: Re: Disable SATA LPM (Link Power Management)
On Fri, Apr 06, 2018 at 07:05:00PM +0200, basti wrote:
> is there a way to disable LPM for mv_sata driver by commandline?
per-disk, not per-driver:
echo STATE > /sys/class/scsi_host/host0/link_power_management_policy
where STATE can be:
min_power WARNING: possible data loss
med_power_with_dipm appears in kernel 4.15.
In general, none of these are good ideas. Make backups. Consider
suspend-to-ram and suspend-to-disk if you don't need the system