"File system is not clean. It is suggested that you run check filesystem"

[Silas Mariusz]

Why does my Turbo NAS system log state that "File system is not clean. It is suggested that you run check filesystem" ?
Posted by Albert Shan on 12 January 2016 04:18 PM
The "File system is not clean" message is to notice the user to do the file system check to make sure the data integrity. Generally, it happens when the data volume is not un-mounted properly. It could be:

1. The abnormal shutdown or force power off the NAS.
2. Some services are not stopped properly during the shutdown.
3. Other unexpected cases cause the data volume is not un-mounted properly.

If this message still appears in the log after you do the file system check and reboot the NAS properly.
You can find the hotfix from below link to download it.

Please download and extract the file and then do the firmware update.

Legacy Models | CPU Type | SafeShudown QFix
\x10 Series; all models|ARM| http://download.qnap.com/Storage/tsd/qfix/SafeShutdown_0.3_arm_kw.zip
\x12 Series; all models|ARM| http://download.qnap.com/Storage/tsd/qfix/SafeShutdown_0.3_arm_kw.zip
\x19 Series; all models|ARM| http://download.qnap.com/Storage/tsd/qfix/SafeShutdown_0.3_arm_kw.zip
\x20 Series; all models|ARM| http://download.qnap.com/Storage/tsd/qfix/SafeShutdown_0.3_arm_kw.zip
\x21 Series; all models|ARM| http://download.qnap.com/Storage/tsd/qfix/SafeShutdown_0.3_arm_kw.zip
\TS-509 Pro|Intel| http://download.qnap.com/Storage/tsd/qfix/SafeShutdown_0.3_x86.zip
\TS-809/TS-809U|Intel| http://download.qnap.com/Storage/tsd/qfix/SafeShutdown_0.3_x86.zip
\x39 Series; all models|Intel| http://download.qnap.com/Storage/tsd/qfix/SafeShutdown_0.3_x86.zip
\x59 Series; all models|Intel| http://download.qnap.com/Storage/tsd/qfix/SafeShutdown_0.3_x86.zip
\ Home/SOHO models | CPU Type | SafeShudown QFix
\x28 Series; all models|ARM| http://download.qnap.com/Storage/tsd/qfix/SafeShutdown_0.3_arm_kw.zip
\x31 Series (without + )|ARM| http://download.qnap.com/Storage/tsd/qfix/SafeShutdown_0.3_arm_ms.zip
\x31+ Series|ARM| http://download.qnap.com/Storage/tsd/qfix/SafeShutdown_0.3_arm_al.zip
\TAS-x68 Series; all models|ARM| http://download.qnap.com/Storage/tsd/qfix/SafeShutdown_0.3_arm_kw.zip
\HS-251|Intel| http://download.qnap.com/Storage/tsd/qfix/SafeShutdown_0.3_x86.zip
\TS-x51 Series; all models|Intel| http://download.qnap.com/Storage/tsd/qfix/SafeShutdown_0.3_x86.zip
\ SMB Models | CPU Type | SafeShudown QFix
\x53 Series; all models|Intel| http://download.qnap.com/Storage/tsd/qfix/SafeShutdown_0.3_x86.zip
\x63 Series; all models|AMD| http://download.qnap.com/Storage/tsd/qfix/SafeShutdown_0.3_x86.zip
\x69 Series; all models|Intel| http://download.qnap.com/Storage/tsd/qfix/SafeShutdown_0.3_x86.zip
\x70 Series; all models|Intel| http://download.qnap.com/Storage/tsd/qfix/SafeShutdown_0.3_x86.zip
\x71 Series; all models|Intel| http://download.qnap.com/Storage/tsd/qfix/SafeShutdown_0.3_x86.zip
\ Enterprise Models | CPU Type | SafeShudown QFix
\x79 Series; all models|Intel| http://download.qnap.com/Storage/tsd/qfix/SafeShutdown_0.3_x86.zip
\x80 Series; all models|Intel| http://download.qnap.com/Storage/tsd/qfix/SafeShutdown_0.3_x86.zip