[Help] F424-MAX random crashes after days / weeks

[haudegen1993]

Hi,
i have a strange problem with my F424 Max.

My System:
F424 Max - running TOS 6.0.650 - error happened on several system versions
Ram upgraded to 2x Crucial 16GB DDR5 4800 (CT16G48C40S5)
HDD: 4x 4TB Seagate Ironwolf (ST4000VNZ06) - TRAID+
SSD: 2x 500GB Kingston NV3 PCIe 4 SSD (SNV3S/500G) - Balance Mode Cache

The system is used to run some SMB fileshares for several users and is running 2 vms
VM1: 2vcpu, 8gb ram, virtio scsi storage, virtio-net - running Win 11 and Lexware Server
VM2: 4vcpu, 16gb ram, lsilogic sas storage (virtio scsi wont work, dont know why), virtio net - running Win 11 and veeam microsoft 365 backup

Even in working hours, the system is chilling at under 5% cpu usage and around 85% ram usage (around 4-5gb ram is free)

temperatures are fine too (case: 30°C, CPU 53°C, NVME 38°C, HDDS 30-35°C) SMART and Ironwolf Health Management says healthy.

now my problem...
im running the system since december and in this almost 4 month i had like 5 crashes where the system wont respond, or answer on pings / ssh, nothing - even when i plugin a monitor, there is only a blank screen.
only a hard reboot by cutting power and restarting the system helps

systemprotocols are a joke, dont name it systemprotocls when there are only login logs...

plz i need some hints, where / what to do to get this machine running fine...

[TMzethar]

You can enable Debug mode (TOS > Technical Support > Debug Mode). When the issue occurs again, please send the Debug log to our Support email for inspection.
Additionally, please collect a system report from 'TOS Technical Support > Report Issues' to provide us with more basic information.

Note that using SSD caching will consume some RAM, which is related to the SSD capacity you have allocated. For detailed information, please refer to: viewtopic.php?t=7675

[haudegen1993]

"Note that using SSD caching will consume some RAM, which is related to the SSD capacity you have allocated. For detailed information, please refer to: viewtopic.php?t=7675"

Either im stupid or by using the calculation, the ssd cache is kinda useless in my use case and i should instead use the 2 ssds in raid 1 for the both vm as operation system diskspace
Maximum cache capacity allowed by system memory = (Total system memory {GB} x 0.6 - Used system memory {GB}) * 1024 / 5.5
32GB System Memory
around 27GB Used

so when using the forumla:
32 x 0,6 - 27 = 19,2 - 27 = -7,8 ?

[TMzethar]

You should use this calculation formula before creating and enabling the SSD Hyper Cache.

[haudegen1993]

You should use this calculation formula before creating and enabling the SSD Hyper Cache.

i have created the cache while doing the first installation, right after creating the hdd pool / volume, which is around 4 month old.
the first crash happened around 1 month after the creation and using the nas.

ps: ive collected the system report, do i send it at support@ ?

[TMzethar]

Please send to support(at)terra-master.com

[TMzethar]

Based on the system report you provided, we have found that its available RAM is very low and may run out at any time. No obvious anomalies have been detected for now. Compared to Hyper Cache usage, your two virtual machines are consuming more RAM. You might consider ways to limit the RAM usage of the virtual machines, reconfigure them with less RAM, or increase the total RAM.

[haudegen1993]

as mentioned above, the vms run with 8gb and 16gb which equals in 24gb - so 8gb should be free.

can i see somewhere how the hyper cache is used (ram / ssd size wise)
to consider if the hyper cache is really usefull, or if i should disable it and use the nvme drives to store the vms os disks there.

another question:
i wanted to decrease the ram from vm2, to test if the program on the vm would still function fine,... but i cant login to the virtualbox
im getting following error message after the login:
Exception Object
(
[message:protected] => Could not connect to host (http://127.0.0.1:18083/)
[string:Exception:private] =>
[code:protected] => 64
[file:protected] => /Volume1/@apps/virtualbox/webui/endpoints/api.php
[line:protected] => 134
[trace:Exception:private] => Array
(
)

[previous:Exception:private] =>
)

[TMzethar]

You can check it with the following command in Ternimal:

Code: Select all

lvdisplay | grep Cache

[haudegen1993]

aah okay, and Cache used blocks 99,99% means that the whole 500gb ssd is being used?

do u have a hint for the above virtualbox error?

and now when i open anything via tos webpage (doesnt matter what, terminal, control center, etc.) i get the following message:

"Diese Anwendung kann nicht richtig gestartet werden. Möchten Sie die Verknüpfung löschen und die Anwendung neu installieren?"
i hope i translate it right
"this application cant be started normally. do u want to delete the shortcut and reinstall the application?"