After update RN102 from 6.2.5 to 6.4.0 it sends mail with root usage 86%

Question

I've updated my ReadyNAS and now i get mail notifications that the root usage is 86%.I think it isn't true beause the data storage has over 700GB free space and /dev/md0 has 2.4GB free space.What's wrong? Where can I find the reason for that message?&nbsp;ssh cmd: df - h /varFilesystem&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Size&nbsp; Used Avail Use% Mounted ontmpfs&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 10M&nbsp; 4.0K&nbsp;&nbsp; 10M&nbsp;&nbsp; 1% /dev/dev/md0&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 4.0G&nbsp; 1.4G&nbsp; 2.4G&nbsp; 36% /tmpfs&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 249M&nbsp;&nbsp; 44K&nbsp; 249M&nbsp;&nbsp; 1% /dev/shmtmpfs&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 249M&nbsp; 1.5M&nbsp; 248M&nbsp;&nbsp; 1% /runtmpfs&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 249M&nbsp;&nbsp;&nbsp;&nbsp; 0&nbsp; 249M&nbsp;&nbsp; 0% /sys/fs/cgrouptmpfs&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 249M&nbsp;&nbsp;&nbsp;&nbsp; 0&nbsp; 249M&nbsp;&nbsp; 0% /media/dev/md127&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 927G&nbsp; 127G&nbsp; 799G&nbsp; 14% /Daten/dev/md127&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 927G&nbsp; 127G&nbsp; 799G&nbsp; 14% /home/dev/md127&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 927G&nbsp; 127G&nbsp; 799G&nbsp; 14% /apps/dev/md127&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 927G&nbsp; 127G&nbsp; 799G&nbsp; 14% /run/nfs4/home&nbsp;

StephenB · Answer

It looks like 36% root usage to me. &nbsp;But check inodes for md0 also (df &nbsp;-i)

Retired_Member · Answer

You are right. The inode usage is 86%.&nbsp;Here the original message from df -i:Filesystem&nbsp;&nbsp;&nbsp;&nbsp; Inodes IUsed IFree IUse% Mounted on/dev/md0&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 65536 56246&nbsp; 9290&nbsp;&nbsp; 86% /&nbsp;How can I fix it?&nbsp;

StephenB · Answer

There must be some folder that has a bunch of small files (maybe even 0 length). &nbsp;Basically you need to search for it. &nbsp;/tmp, /var/log, /var/cache are good places to start.
&nbsp;
With OS 4.2, that is usually the ReadyDLNA artwork cache. &nbsp;But with OS 6 that should be in /apps - which is on the C drive.
&nbsp;
Once you find where the files are, it might be clear that they can safely deleted. &nbsp;If not, post back here.
&nbsp;
Best to update your backup first - it is easy to make a fatal mistake with ssh.
&nbsp;
&nbsp;
Netgear can fix it remotely also - so you could try support.netgear.com. &nbsp;Even if you are past the 90 window, they might help w/o charge.

Retired_Member · Answer

I found many files in /var/backups. Recently I have made a backup of the configuration. I think this folder can be cleared?I have also some mysql databases in /var/lib/mysql. I will transfer them to the hard disk drives.&nbsp;Only these two folders are filled with many small files.&nbsp;I try it and give a feedback here.&nbsp;Thanks for your advices.

StephenB · Answer

I don't know how /var/backups is used - so I'm not sure if it is safe to clear or not.
&nbsp;
Generally there is 1 inode per file. &nbsp;My RN202 has is using about 11000 inodes on the OS partition. &nbsp;So you are looking for about 40,000 files - not a handful.
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After update RN102 from 6.2.5 to 6.4.0 it sends mail with root usage 86%

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