Not that I've seen..
Disks and CPU are zero % after booting up - every time - after seeing this message about the improper shutdown. I don't think it's doing a parity check - or anything, really.
My box was powered down using either the power option on the console, the shutdown or poweroff commands (at a SSH terminal), so it was 'going down properly'.. It didn't suddenly switch itself off and reboot..
Personally, I think it's a bug (and there have been previous notifications on 'actual' synology devices about this bug) but it would be nice to resolve it..
#H
After testing the dual UEFI/Legacy build (bare metal) on motherboards with/without a physical serial port, I don't see the errors with motherboards that have a physical serial port. No errors are displayed or logged after a reboot or a shutdown/restart. I do see the errors with motherboards that don't have a physical serial port.
After doing some research on some of the Synology NAS models, it appears some models do have a physical serial port. This is not exposed to the user. I have read articles where some owners have opened their Synology NAS's to physically connect up the serial comm port. The main reason for doing this was to recover from a "Bricked Unit". On reboot or shutdown/restart the following is logged in the "messages" logs for motherboards without a physical serial port.
2016-10-02T19:34:23-04:00 Test-NAS60 synoscgi_SYNO.Core.System_1_shutdown[12971]: system_sys_init.c:90 synopoweroff: System is going to poweroff
2016-10-02T19:34:23-04:00 Test-NAS60 [ 320.740657] init: synonetd main process (4969) killed by TERM signal
2016-10-02T19:34:23-04:00 Test-NAS60 [ 320.741148] init: synostoraged main process (9548) terminated with status 15
2016-10-02T19:34:23-04:00 Test-NAS60 [ 320.742680] init: hotplugd main process (11016) killed by TERM signal
2016-10-02T19:34:23-04:00 Test-NAS60 [ 320.743111] init: smbd main process (11382) killed by TERM signal
2016-10-02T19:34:23-04:00 Test-NAS60 [ 320.835177] init: syno_poweroff_task main process (13011) terminated with status 1
Logs from motherboard with physical serial port
2016-09-27T20:18:29-05:00 Test-NAS48 [ 1373.178048] init: synonetd main process (5536) killed by TERM signal
2016-09-27T20:18:29-05:00 Test-NAS48 [ 1373.178468] init: synostoraged main process (10964) terminated with status 15
2016-09-27T20:18:29-05:00 Test-NAS48 [ 1373.179553] init: hotplugd main process (12425) killed by TERM signal
2016-09-27T20:18:29-05:00 Test-NAS48 [ 1373.184887] init: smbd main process (12631) killed by TERM signal
2016-09-27T20:18:29-05:00 Test-NAS48 syno_poweroff_task: System is acting poweroff.
Also, as stated in the post from jun on Page 1, if your motherboard does not have a physical serial port the logs will fill up with the following, if you don't stop/disable the tty service:
2016-10-02T19:33:46-04:00 Test-NAS60 [ 283.376096] init: tty main process ended, respawning
2016-10-02T19:33:56-04:00 Test-NAS60 [ 293.377424] init: tty main process (12828) terminated with status 1
2016-10-02T19:33:56-04:00 Test-NAS60 [ 293.377449] init: tty main process ended, respawning
2016-10-02T19:34:06-04:00 Test-NAS60 [ 303.378699] init: tty main process (12846) terminated with status 1
To see if you are getting the tty errors, you can check your logs. SSH in, use the following command "dmesg | grep tty"
Hope this information is helpful.