Video files get corrupted after transferring on QNAP Ts-831x

[Yvan61]

First, sorry for my bad english... Here's my problem: All my video files get corrupted after transferring them on my QNAP NAS (TS-831x). What is the problem??? I join 2 prinscreen of before and after transferring this video on QNAP. Someone know the solution?

[dolbyman]

what firmware are you running ?

4.3.4.0537 is known to cause issues on mamy devices (arm imcluded)

[dolbyman]

also use any freeware checksum tool

if original and copied files have the same checksum .. no corruption occured

[Yvan61]

it's .mkv files. When i copy them on NAS, they are corrupted when I try to read them. So, I copy back this same file on my pc and when I read this file, it still corrupted.

[Yvan61]

also use any freeware checksum tool

if original and copied files have the same checksum .. no corruption occured

Cool, I had no idea that was possible. Thanks.

Here is the result for checksum before and after the file is transfered on Qnap

[Yvan61]

what firmware are you running ?

4.3.4.0537 is known to cause issues on mamy devices (arm imcluded)

It's exactly this version that I use... Can I install an older version? Which version will be the best one?

[dolbyman]

try one lower....maybe talk to qnap first..I seem to remember that downgrading on arm units was not advised

[Yvan61]

try one lower....maybe talk to qnap first..I seem to remember that downgrading on arm units was not advised

A ticket is open and I wait for an answer. You talk about "arm unit" ... I don't know what it is... can you tell me? Thanks a lot for trying to help me I really appreciate dolbyman.

[dolbyman]

your unit is powered by a low power annapurna labs arm unit (like a cellphone processor), (much) more powerful units use CPU's from intel and AMD

[Yvan61]

your unit is powered by a low power annapurna labs arm unit (like a cellphone processor), (much) more powerful units use CPU's from intel and AMD

ok, I understand now... Thanks!

[Yvan61]

Problem found.... a memory stick defect...

[RocketCowboy]

Problem found.... a memory stick defect...

How did you diagnose that the problem was related to memory? Any other symptoms other than just file corruption?

I'm seeing corruption when transferring large files to the TS-831x, but I'm also having issues where backup tasks and sometimes just idle time cause things like the apache proxy service to stop and need to be manually restarted. I just factory defaulted and reformatted all drives, but just trying to restore files back to the NAS causes the CPU to spike and the webui to become unavailable.

[dolbyman]

what process is spiking the CPU ?

[Yvan61]

Problem found.... a memory stick defect...

How did you diagnose that the problem was related to memory? Any other symptoms other than just file corruption?

I'm seeing corruption when transferring large files to the TS-831x, but I'm also having issues where backup tasks and sometimes just idle time cause things like the apache proxy service to stop and need to be manually restarted. I just factory defaulted and reformatted all drives, but just trying to restore files back to the NAS causes the CPU to spike and the webui to become unavailable.

With Qnap's technician who told me that if the checksum of a file transfered is not the same as original file it's often a memory problem. I remove the second memory stick that I added a month ago and everything goes well now. If you have 2 memory sticks installed, try too remove one and check if the problem is solve..... I got also problem like you with the apache proxy and this problem is now also solved with removing the defect memory stick. It's an easy test to do and you will see if your problem will dissapear... (Sorry for my bad english...)

[dolbyman]

oh RAM module.... memory stick sounded more like usb drive