Warning to Hyper-V users: log runs out of space

[AskgopJeJ]

Hello, I have Xpenology 5428 in Hyper-V for three months. Today i could not log in. Password does not work for DSM, SSH even in console.

In console i saw: no space left on device (like this post http://xpenology.com/forum/viewtopic.php?f=2&t=4956)

and after couple of reboots, DSM write: cannot login to the system because the disk space is full

 

I tried again and install DSM (migrate) setup failed at the beginning...

After a long effort to attach Synology sections in Parted Magic attempts to repair it, I gave up. I restored yesterday Hyper-V backup

 

 

This if df:

Filesystem Size Used Available Use% Mounted on

/dev/md0 2.3G 2.3G 0 100% /

/tmp 167.3M 1.2M 166.1M 1% /tmp

/dev/vg2/volume_2 39.8G 18.8G 21.0G 47% /volume2

 

 

After while I found that problem is in /var/log foder. In this folder the file scemd.log had a size 1,7GB !!!

 

Log contained records from 7. November to 23 January

 

This is sample:

Jan 19 08:12:49 SYNOLOGY_I3 scemd: SmartDataRead(107) read value /dev/sdc fail
Jan 19 08:12:49 SYNOLOGY_I3 scemd: disk_temperature_get.c:71 read value /dev/sdc fail
Jan 19 08:12:49 SYNOLOGY_I3 scemd: SmartDataRead(107) read value /dev/sdd fail
Jan 19 08:12:49 SYNOLOGY_I3 scemd: disk_temperature_get.c:71 read value /dev/sdd fail
Jan 19 08:12:49 SYNOLOGY_I3 scemd: external/external_fan_table_type_disk_temperature_ops.c:230 Invalid Disks temperature -1
Jan 19 08:12:49 SYNOLOGY_I3 scemd: external/external_fan_config_table_lookup.c:148   Temperature Get fail
Jan 19 08:12:51 SYNOLOGY_I3 scemd: SmartDataRead(107) read value /dev/sdc fail
Jan 19 08:12:51 SYNOLOGY_I3 scemd: disk_temperature_get.c:71 read value /dev/sdc fail
Jan 19 08:12:51 SYNOLOGY_I3 scemd: SmartDataRead(107) read value /dev/sdd fail
Jan 19 08:12:51 SYNOLOGY_I3 scemd: disk_temperature_get.c:71 read value /dev/sdd fail
Jan 19 08:12:51 SYNOLOGY_I3 scemd: external/external_fan_table_type_disk_temperature_ops.c:230 Invalid Disks temperature -1
Jan 19 08:12:51 SYNOLOGY_I3 scemd: external/external_fan_config_table_lookup.c:148   Temperature Get fail
Jan 19 08:12:53 SYNOLOGY_I3 scemd: SmartDataRead(107) read value /dev/sdc fail
Jan 19 08:12:53 SYNOLOGY_I3 scemd: disk_temperature_get.c:71 read value /dev/sdc fail
Jan 19 08:12:53 SYNOLOGY_I3 scemd: SmartDataRead(107) read value /dev/sdd fail
Jan 19 08:12:53 SYNOLOGY_I3 scemd: disk_temperature_get.c:71 read value /dev/sdd fail
Jan 19 08:12:53 SYNOLOGY_I3 scemd: external/external_fan_table_type_disk_temperature_ops.c:230 Invalid Disks temperature -1
Jan 19 08:12:53 SYNOLOGY_I3 scemd: external/external_fan_config_table_lookup.c:148   Temperature Get fail
Jan 19 08:12:55 SYNOLOGY_I3 scemd: SmartDataRead(107) read value /dev/sdc fail
Jan 19 08:12:55 SYNOLOGY_I3 scemd: disk_temperature_get.c:71 read value /dev/sdc fail
Jan 19 08:12:55 SYNOLOGY_I3 scemd: SmartDataRead(107) read value /dev/sdd fail
Jan 19 08:12:55 SYNOLOGY_I3 scemd: disk_temperature_get.c:71 read value /dev/sdd fail
Jan 19 08:12:55 SYNOLOGY_I3 scemd: external/external_fan_table_type_disk_temperature_ops.c:230 Invalid Disks temperature -1
Jan 19 08:12:55 SYNOLOGY_I3 scemd: external/external_fan_config_table_lookup.c:148   Temperature Get fail
Jan 19 08:12:57 SYNOLOGY_I3 scemd: SmartDataRead(107) read value /dev/sdc fail
Jan 19 08:12:57 SYNOLOGY_I3 scemd: disk_temperature_get.c:71 read value /dev/sdc fail
Jan 19 08:12:57 SYNOLOGY_I3 scemd: SmartDataRead(107) read value /dev/sdd fail
Jan 19 08:12:57 SYNOLOGY_I3 scemd: disk_temperature_get.c:71 read value /dev/sdd fail
Jan 19 08:12:57 SYNOLOGY_I3 scemd: external/external_fan_table_type_disk_temperature_ops.c:230 Invalid Disks temperature -1
Jan 19 08:12:57 SYNOLOGY_I3 scemd: external/external_fan_config_table_lookup.c:148   Temperature Get fail
Jan 19 08:12:59 SYNOLOGY_I3 scemd: SmartDataRead(107) read value /dev/sdc fail
Jan 19 08:12:59 SYNOLOGY_I3 scemd: disk_temperature_get.c:71 read value /dev/sdc fail
Jan 19 08:12:59 SYNOLOGY_I3 scemd: SmartDataRead(107) read value /dev/sdd fail
Jan 19 08:12:59 SYNOLOGY_I3 scemd: disk_temperature_get.c:71 read value /dev/sdd fail
Jan 19 08:12:59 SYNOLOGY_I3 scemd: external/external_fan_table_type_disk_temperature_ops.c:230 Invalid Disks temperature -1
Jan 19 08:12:59 SYNOLOGY_I3 scemd: external/external_fan_config_table_lookup.c:148   Temperature Get fail

 

 

Q: How can this be prevented? I think it must eventually happen to anyone who operates XPEnology in Hyper-V. How to disable reading of temperature and SMART?