I am the recent owner of a Synology DS211 equipped with 2 Seagate Barracuda Green 2Tb (ST2000DL003 officially supported by Synology).
I have activated the "Hibernation" mode and I have come to the conclusion that my NAS does not stay in hibernation mode when there is no activity.
I have activated the debug tool and I disconnected the Ethernet cable from the NAS (moreover, there is no peripheral attached to the NAS).
I made a test for several hours and I noticed that the following line was provoking the "wake-up" of my NAS :
[/var/run/synoaudiod.pid] opened by pid 6054 [u:(avahi-daemon: running [DiskStat), comm:(avahi-daemon)]
Do you know what it is exactly ? It is true that I have the iTunes Server and Audio Station activated but I don't understand why one of these two could command a wake-up of the system when the NAS is not connected to the network...
Is there a way to avoid this behavior ?
Thanks in advance for your reply.
trabala38
PS : Here is the log I extracted :
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Jun 18 09:05:09 syno_hibernate_debug_tool: (115): Start Hibernation Debug with second [10]
Jun 18 09:05:47 kernel: [31468.890000] [/var/log/messages] opened by pid 5180 [u:(more), comm:(more)]
Jun 18 09:06:35 kernel: [31517.000000] [/var/log/messages] opened by pid 5182 [u:(more), comm:(more)]
Jun 18 09:07:45 kernel: [31587.180000] [/etc/localtime] opened by pid 2002 [u:(/sbin/klogd), comm:(klogd)]
Jun 18 09:09:09 kernel: [31670.300000] [./cnid2.db] opened by pid 5139 [u:(/usr/syno/sbin/cnid_dbd), comm:(cnid_dbd)]
Jun 18 09:39:48 kernel: [33509.590000] [/etc/localtime] opened by pid 3637 [u:(/usr/syno/bin/scemd), comm:(scemd)]
Jun 18 10:19:17 kernel: [35879.060000] [/var/run/synoaudiod.pid] opened by pid 3402 [u:(avahi-daemon: running [DiskStat), comm:(avahi-daemon)] ==> Remark : wake-up unexplained !
Jun 18 10:19:23 scemd: SCEMD: disk 1 wake up from hibernation
Jun 18 10:19:30 kernel: [35892.020000] drivers/scsi/sd.c[471]:sd_prep_fn(), sda: cmd 0x0 spin up by pid=4, comm=events/0
Jun 18 10:19:30 kernel: [35892.040000] drivers/scsi/sd.c[471]:sd_prep_fn(), sdb: cmd 0x0 spin up by pid=3, comm=ksoftirqd/0
Jun 18 10:19:37 scemd: SCEMD: disk 2 wake up from hibernation
Jun 18 10:50:11 kernel: [37733.080000] [/etc/localtime] opened by pid 3637 [u:(/usr/syno/bin/scemd), comm:(scemd)]
Jun 18 11:12:32 kernel: [39074.400000] [/etc/localtime] opened by pid 2002 [u:(/sbin/klogd), comm:(klogd)] ==> Remark : wake-up following the re-plug-in of the Ethernet cable. Do you know why the klogd process provokes a wake-up ???
Jun 18 11:12:44 kernel: [39087.010000] drivers/scsi/sd.c[471]:sd_prep_fn(), sda: cmd 0x0 spin up by pid=92, comm=bdi-default
Jun 18 11:12:44 kernel: [39087.020000] [/etc/localtime] opened by pid 2002 [u:(/sbin/klogd), comm:(klogd)]
Jun 18 11:12:44 scemd: SCEMD: disk 1 wake up from hibernation
Jun 18 11:12:44 kernel: [39087.050000] drivers/scsi/sd.c[471]:sd_prep_fn(), sdb: cmd 0x0 spin up by pid=3, comm=ksoftirqd/0
Jun 18 11:12:53 scemd: SCEMD: disk 2 wake up from hibernation
Jun 18 11:14:02 kernel: [39164.360000] [/etc/localtime] opened by pid 5430 [u:(/usr/syno/sbin/afpd), comm:(afpd)]
Jun 18 11:15:07 kernel: [39229.510000] [/usr/syno/etc/smb.conf] opened by pid 5431 [u:(/usr/syno/sbin/afpd), comm:(afpd)]
Jun 18 11:16:02 kernel: [39283.890000] [/var/run/synoaudiod.pid] opened by pid 3402 [u:(avahi-daemon: running [DiskStat), comm:(avahi-daemon)]
Jun 18 11:21:45 kernel: [39627.370000] [/var/log/messages] opened by pid 5451 [u:(more), comm:(more)]
Jun 18 11:25:09 kernel: [39830.840000] [./cnid2.db] opened by pid 5432 [u:(/usr/syno/sbin/cnid_dbd), comm:(cnid_dbd)]
Jun 18 11:33:09 kernel: [40311.190000] [/usr/syno/synoman/phpsrc/web/] opened by pid 4858 [u:(/usr/syno/apache/bin/httpd), comm:(httpd)]
Jun 18 12:10:31 kernel: [42553.060000] [/usr/syno/synoman/webman/modules/ControlPanel/ControlPanel.js] opened by pid 4996 [u:(/usr/syno/apache/bin/httpd), comm:(httpd)]
Jun 18 12:11:03 kernel: [42585.510000] [/usr/syno/synoman/webman/modules/ControlPanel/modules/winmacnfs.cgi] opened by pid 5767 [u:(/usr/syno/apache/bin/httpd), comm:(httpd)]
Jun 18 12:11:24 kernel: [42606.340000] [/usr/syno/synoman/scripts/ext-3/ux/images/statusbar/exclamation.gif] opened by pid 4997 [u:(/usr/syno/apache/bin/httpd), comm:(httpd)]
Jun 18 12:12:04 kernel: [42645.810000] [/usr/syno/synoman/webman/modules/ControlPanel/modules/modules.json] opened by pid 5768 [u:(/usr/syno/apache/bin/httpd), comm:(httpd)]
Jun 18 12:12:34 kernel: [42676.470000] [/usr/syno/synoman/webman/modules/ResourceMonitor/rsrcmonitor.cgi] opened by pid 4997 [u:(/usr/syno/apache/bin/httpd), comm:(httpd)]
Jun 18 12:14:18 kernel: [42780.020000] [/etc/passwd] opened by pid 5964 [u:(/usr/sbin/inetd), comm:(inetd)]
Jun 18 12:16:22 kernel: [42903.760000] [/usr/syno/synoman/webman/modules/ControlPanel/modules/winmacnfs.cgi] opened by pid 5769 [u:(/usr/syno/apache/bin/httpd), comm:(httpd)]
Jun 18 12:16:45 kernel: [42926.990000] [/usr/syno/synoman/webman/modules/ControlPanel/modules/modules.json] opened by pid 4994 [u:(/usr/syno/apache/bin/httpd), comm:(httpd)]
Jun 18 12:19:46 afpd[6128]: [afp_dsi.c:195] afp_alarm: child timed out
Jun 18 12:27:17 kernel: [43558.510000] [./cnid2.db] opened by pid 6129 [u:(/usr/syno/sbin/cnid_dbd), comm:(cnid_dbd)]
Jun 18 12:37:56 kernel: [44197.700000] [/etc/localtime] opened by pid 3637 [u:(/usr/syno/bin/scemd), comm:(scemd)]
Jun 18 13:32:24 kernel: [47465.790000] [/var/run/synoaudiod.pid] opened by pid 6054 [u:(avahi-daemon: running [DiskStat), comm:(avahi-daemon)] ==>Remark : wake-up unexplained !
Jun 18 13:32:29 scemd: SCEMD: disk 1 wake up from hibernation
Jun 18 13:32:36 kernel: [47478.000000] drivers/scsi/sd.c[471]:sd_prep_fn(), sda: cmd 0x0 spin up by pid=4, comm=events/0
Jun 18 13:32:36 kernel: [47478.020000] drivers/scsi/sd.c[471]:sd_prep_fn(), sdb: cmd 0x0 spin up by pid=3, comm=ksoftirqd/0
Jun 18 13:32:43 scemd: SCEMD: disk 2 wake up from hibernation
Jun 18 13:43:16 kernel: [48118.480000] [/etc/localtime] opened by pid 3637 [u:(/usr/syno/bin/scemd), comm:(scemd)]
Jun 18 17:31:56 kernel: [61837.750000] [/etc/dhcpc/dhcpcd-eth0.info] opened by pid 3637 [u:(/usr/syno/bin/scemd), comm:(scemd)] ==> Remark : wake-up following the re-plug-in of the Ethernet cable.
Jun 18 17:32:01 dhcpcd[1984]: bound ip, lease time 43200 secs. close socket 6
Jun 18 17:32:08 scemd: SCEMD: disk 1 wake up from hibernation
Jun 18 17:32:08 kernel: [61850.010000] drivers/scsi/sd.c[471]:sd_prep_fn(), sda: cmd 0x0 spin up by pid=92, comm=bdi-default
Jun 18 17:32:08 kernel: [61850.040000] drivers/scsi/sd.c[471]:sd_prep_fn(), sdb: cmd 0x0 spin up by pid=3, comm=ksoftirqd/0
Jun 18 17:32:16 scemd: SCEMD: disk 2 wake up from hibernation
Jun 18 17:36:24 kernel: [62107.140000] [/var/run/synoaudiod.pid] opened by pid 6054 [u:(avahi-daemon: running [DiskStat), comm:(avahi-daemon)]
Jun 18 17:38:17 kernel: [62220.640000] [/etc/passwd] opened by pid 6383 [u:(/usr/sbin/inetd), comm:(inetd)]
Jun 18 17:44:09 kernel: [62571.990000] [/usr/syno/synoman/phpsrc/web/] opened by pid 4859 [u:(/usr/syno/apache/bin/httpd), comm:(httpd)]
Jun 18 17:49:27 kernel: [62890.040000] [./cnid2.db] opened by pid 6395 [u:(/usr/syno/sbin/cnid_dbd), comm:(cnid_dbd)]
Jun 18 17:52:19 kernel: [63061.870000] [/usr/syno/synoman/webman/modules/DSMNotify/dsmnotify.cgi] opened by pid 6413 [u:(/usr/syno/apache/bin/httpd), comm:(httpd)]
Jun 18 17:57:21 kernel: [63363.880000] [/usr/syno/synoman/webman/modules/DSMNotify/dsmnotify.cgi] opened by pid 5767 [u:(/usr/syno/apache/bin/httpd), comm:(httpd)]
Jun 18 18:01:42 kernel: [63624.880000] [/usr/syno/synoman/webman/resources/images/taskbar/option.png] opened by pid 6416 [u:(/usr/syno/apache/bin/httpd), comm:(httpd)]
Jun 18 18:01:54 kernel: [63637.520000] [/usr/syno/synoman/webman/modules/SystemInfoApp/SystemInfo.cgi] opened by pid 6416 [u:(/usr/syno/apache/bin/httpd), comm:(httpd)]
Jun 18 18:06:59 kernel: [63942.530000] [/usr/syno/synoman/webman/modules/DSMNotify/dsmnotify.cgi] opened by pid 6415 [u:(/usr/syno/apache/bin/httpd), comm:(httpd)]
Jun 18 18:12:01 kernel: [64244.590000] [/usr/syno/synoman/webman/modules/DSMNotify/dsmnotify.cgi] opened by pid 6413 [u:(/usr/syno/apache/bin/httpd), comm:(httpd)]
Jun 18 18:12:14 kernel: [64257.230000] [/etc/localtime] opened by pid 6582 [u:(/usr/syno/sbin/afpd), comm:(afpd)]
Jun 18 18:15:22 kernel: [64445.010000] [/var/log/messages] opened by pid 6594 [u:(more), comm:(more)]
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