Update: 1.
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1484497/comments/6 2. Running ps aux I found /usr/sbin/smartd -n. [weremouse@moonstudio ~]$ man smartd [snip] smartd will attempt to enable SMART monitoring on ATA devices (equivalent to smartctl -s on) and polls these and SCSI devices every 30 minutes (configurable) [snip] My Arch Linux doesn't run smartd. I don't remember if it already was installed when the issue appeared for the Wily install or if I installed it after I noticed the issue. It might not be the original culprit, but seemingly is at least one culprit. I started a test a few minutes ago. Regards, Ralf Further information: [root@moonstudio weremouse]# ps aux | grep smart root 879 0.2 0.0 25240 2760 ? Ss 14:55 0:00 /usr/sbin/smartd -n [snip] [root@moonstudio weremouse]# systemctl -l status smartmontools.service ● smartd.service - Self Monitoring and Reporting Technology (SMART) Daemon Loaded: loaded (/lib/systemd/system/smartd.service; enabled; vendor preset: enabled) Active: active (running) since Mon 2015-08-24 14:55:29 CEST; 47s ago Docs: man:smartd(8) man:smartd.conf(5) Main PID: 879 (smartd) CGroup: /system.slice/smartd.service └─879 /usr/sbin/smartd -n [snip] Aug 24 14:55:32 moonstudio smartd[879]: Device: /dev/sda [SAT], state written to /var/lib/smartmontools/smartd.SAMSUNG_HD321KJ-S0MQJ9AQ308387.ata.state Aug 24 14:55:32 moonstudio smartd[879]: Device: /dev/sdb [SAT], state written to /var/lib/smartmontools/smartd.SAMSUNG_HD502HJ-S26EJ9FZ100925.ata.state Aug 24 14:55:32 moonstudio smartd[879]: Device: /dev/sdc [SAT], state written to /var/lib/smartmontools/smartd.WDC_WD20EZRX_00DC0B0-WD_WMC300753067.ata.state [root@moonstudio weremouse]# systemctl -l status smartd.service ● smartd.service - Self Monitoring and Reporting Technology (SMART) Daemon Loaded: loaded (/lib/systemd/system/smartd.service; enabled; vendor preset: enabled) Active: active (running) since Mon 2015-08-24 14:55:29 CEST; 58s ago Docs: man:smartd(8) man:smartd.conf(5) Main PID: 879 (smartd) CGroup: /system.slice/smartd.service └─879 /usr/sbin/smartd -n [snip] Aug 24 14:55:32 moonstudio smartd[879]: Device: /dev/sda [SAT], state written to /var/lib/smartmontools/smartd.SAMSUNG_HD321KJ-S0MQJ9AQ308387.ata.state Aug 24 14:55:32 moonstudio smartd[879]: Device: /dev/sdb [SAT], state written to /var/lib/smartmontools/smartd.SAMSUNG_HD502HJ-S26EJ9FZ100925.ata.state Aug 24 14:55:32 moonstudio smartd[879]: Device: /dev/sdc [SAT], state written to /var/lib/smartmontools/smartd.WDC_WD20EZRX_00DC0B0-WD_WMC300753067.ata.state [root@moonstudio weremouse]# systemctl stop smartmontools.service [root@moonstudio weremouse]# systemctl stop smartd.service [root@moonstudio weremouse]# systemctl disable smartmontools.service Synchronizing state of smartmontools.service with SysV init with /lib/systemd/systemd-sysv-install... Executing /lib/systemd/systemd-sysv-install disable smartmontools insserv: warning: current start runlevel(s) (empty) of script `smartmontools' overrides LSB defaults (2 3 4 5). insserv: warning: current stop runlevel(s) (1 2 3 4 5) of script `smartmontools' overrides LSB defaults (1). [root@moonstudio weremouse]# systemctl disable smartd.service Removed symlink /etc/systemd/system/multi-user.target.wants/smartd.service. [root@moonstudio weremouse]# ps aux | grep smart root 1314 0.0 0.0 8208 936 pts/0 S+ 14:58 0:00 grep --color=auto smart The test that is running: [root@moonstudio weremouse]# echo;date;t=10800;y=$(smartctl -A /dev/sdc|grep Lo|awk '{print $NF}');sleep $t;x=$(smartctl -A /dev/sdc|grep Lo|awk '{print $NF}');printf "\n$(uname -rm)$(lsb_release -d|cut -f2 -d:|cut -f1 -d"(")\n$x-$y=$((x-y)) spins in $(($t/60/60)) hours\n\n";date Mon Aug 24 15:00:50 CEST 2015 To be continued... -- Ubuntu-devel-discuss mailing list Ubuntu-devel-discuss@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-devel-discuss