OMV slow down in few days. High CPU and RAM consumption

Hi,
I have a problem with OMV 1.9.
I have OMV installed on a virtual machine on VMware ESXi host. 1 vCPU, 2GB RAM, 100GB disk dinamically allocated. Only 1 CIFS/SAMBA share enabled. No plugin.

After boot everything work fine. 1-2%CPU, few MB of RAM.

After a few days without ANY operation (no file transfert, even no login in web admin) the OMV start to consume RAM and CPU.
The CPU eater is "rrdcached" process.

If I reboot the machine everything works well but the loop start again.

I have problem even to login on web page with a lots of "communication error" message and an irresponsive UI.
The "Status" bar are almost full and the charts shows almost all "red" RAM used.

Sorry for my english, I'm italian.
Thanks for any information or suggestion. =)

OMV is installed in a vDisk of 3GB.

I've created a second vDisk for the samba share and I've mounted it in OVM in /media/<default name>.

The "df -h" output is in the attachments.

Thanks for the reply! =)

Thanks, I'll try it if the problem occurs again.

2 day, 17 hour of uptime so far. All OK. =)

Hi, the problem reappers. =(

I've tried reset graphs as suggested by tekkb but nothing.

I've also tried to launch the code below but nothing.

sync
echo 3 > /proc/sys/vm/drop_caches

Only reboot the virtual machine that contains OMV restore the performance and the memory use.

Any other idea?

Hi, due to this problem is impossible to me use OMV anymore. =(

I hope in version 2.0! I'll try again when v2 will be released.

Now I've resolved using a Ubuntu Server and configured a Samba share with Webmin.

Thanks all. =)