READYNAS 104 System volume root's usage error

[leew87]

hi 

this morning i have recieved an Alert of the following 

"System volume root's usage is 87%. This condition should not occur under normal conditions. Contact technical support." how do i go about resolving this? 

i have read abit on line i have disabled the anti virus and any backup jobs i had that didnt run correctly. and restarted the NAS how do i clear out unused files on the System root? 

thanks everyone in advanced 

[asimb]

a detailed description how to repair the problem is posted by @StephenB in message 3 of this thread https://community.netgear.com/t5/Using-your-ReadyNAS-in-Business/System-volume-root-s-usage-is-90-RN... or you take my (not so detailed) instructions in message 3, 7 and 10 (especially jpg-attachment) of this thread https://community.netgear.com/t5/Using-your-ReadyNAS-in-Business/System-volume-root-s-usage-is-xx-Th...

[leew87]

thanks for your swift reply 

i have followed the instructions is there a way i can check the s System volume root's usage has returned to normal? 

the only reason i knew it has increase was a email i recieved yesterday 

[StephenB]

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@leew87 wrote:

is there a way i can check the System volume root's usage has returned to normal? 

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Log in via ssh again, and use df to tell you the space usage.  For example

Welcome to ReadyNASOS 6.9.5

root@NAS:~# df // -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/md0        4.0G  940M  2.9G  25% /
root@NAS:~#

Normally it will be about 25% used.

[leew87]

thanks for your reply it seems i am still at 41% after this fix 

Welcome to ReadyNASOS 6.9.5

root@ILLIT-STORAGE:~# df // -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/md0        3.7G  1.5G  2.1G  41% /
root@ILLIT-STORAGE:~#

has i missed anything? 

[StephenB]

41% should be safe.  But it would be useful to understand why it's that high.

Do you have other apps installed?  If so, which ones?

Also, do you connect USB drives to the NAS?  If a drive doesn't mount properly, then sometimes files end up copied to the system root (either through drag/drop, or a backup job).

[leew87]

Hi StephenB 

in answer to your questions 

1) i have no apps installed

2) i have removed the backup jobs recently (in the last 48 hours)  as i am in the processing of adding more storage to the remote readynas that it was backing up so the old backups failed for the last week or so. 

3) i have turnt Anti Virus off on the system this morning and restarted to try and resolve the issue before posting here and getting instructions to remove temp files.

4) no USB connected to the NAS in any way 

i have re-run df to check useage and here are the results 

Welcome to ReadyNASOS 6.9.5

Last login: Wed Mar 20 11:11:37 2019 from illit-main
root@ILLIT-STORAGE:~# df // -h
Filesystem    Size    Used    Avail    Use%    Mounted on
/dev/md0    3.7G    1.1G    2.4G    32%      /

also re-run the comand below to shows there are no tmp files listed as per the fix but i am still at 31% unsure why this is still here than what you expect to see. 

Welcome to ReadyNASOS 6.9.5

Last login: Wed Mar 20 11:43:08 2019 from illit-main
root@ILLIT-STORAGE:~# cd /var/lib/clamav
root@ILLIT-STORAGE:/var/lib/clamav# ls -lsh
total 456M
4.0K -rw-r--r-- 1 root root 48 Mar 6 10:24 antivir.ini
992K -rw-r--r-- 1 root root 990K Jan 2 17:03 bytecode.cld
162M -rw-r--r-- 1 root root 162M Mar 6 10:23 daily.cld
294M -rw-r--r-- 1 root root 294M Jun 8 2017 main.cld
4.0K -rw------- 1 root root 1.5K Mar 20 11:12 mirrors.dat
root@ILLIT-STORAGE:/var/lib/clamav#

[StephenB]

The 25% is a ballpark figure, and it does vary from system to system.  32% is reasonably close (though 41% would be a bit high).

My own NAS shows this for /var/lib/clamav:

4.0K -rw-r--r-- 1 root root   48 Oct 31  2017 antivir.ini
740K -rw-r--r-- 1 root root 737K Oct 31  2017 bytecode.cld
 41M -rw-r--r-- 1 root root  41M Oct 31  2017 daily.cvd
294M -rw-r--r-- 1 root root 294M Oct 31  2017 main.cld
4.0K -rw------- 1 root root  624 Apr 10  2018 mirrors.dat

Note your daily.cvd is 121 MB larger than my very old one.  My system would be 28% full if I had your newer definitions.  Differences in log file sizes, etc could easily account for the rest.

I think your problem is resolved, I don't see any need to analyze it further.

[leew87]

thanks for your help in resolving this issues it is much appreciated. 

will this issue keep appearing? 

[StephenB]

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@leew87 wrote:

will this issue keep appearing? 

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It shouldn't if you keep AntiVirus off.  Netgear is removing the service from the RN100s in the next firmware release (6.10), so you might as well leave it off.  The RN100s have limited memory (512MB), which isn't enough to run all the services.

[leew87]

do you know much about FTPS or SFTP setup on the readynas? 

[StephenB]

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@leew87 wrote:

do you know much about FTPS or SFTP setup on the readynas? 

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Open a new thread on this.  Include the FTP client(s) you intend to use, since that can affect the configuration.  Also, let us know if you intend to forward ports in your router (to get remote access).