Next Steps - Corrupt RAR on 10GB Test Download

[stickman2000]

Hello, I've had an issue over the past month on large file downloads. Smaller files tend to download fine, but large 50GB+ files are almost always corrupt. I performed a test download today through sabnzbd but that was also corrupt. Can I tell from the error log if this is a hardware issue? Or do I need to do further troubleshooting?

Operating on an Unraid server.

Here is the error in the log from sabnzbd:
2023-12-12 12:34:17,290::INFO::[notifier:123] Sending notification: NZB added to queue - test_download_10GB.nzb (type=download, job_cat=*)
2023-12-12 12:34:18,437::INFO::[assembler:87] Decoding finished /data/incomplete/test_download_10GB/sometestfile-10GB.part11.rar
2023-12-12 12:34:18,610::INFO::[assembler:87] Decoding finished /data/incomplete/test_download_10GB/sometestfile-10GB.par2
2023-12-12 12:34:18,613::INFO::[nzbstuff:1792] Checking all filenames for test_download_10GB
2023-12-12 12:34:18,613::INFO::[nzbstuff:1795] Re-sorting test_download_10GB after getting filename information
2023-12-12 12:34:19,144::INFO::[nzbstuff:1792] Checking all filenames for test_download_10GB
2023-12-12 12:34:19,145::INFO::[nzbstuff:1795] Re-sorting test_download_10GB after getting filename information
2023-12-12 12:35:32,952::INFO::[assembler:87] Decoding finished /data/incomplete/test_download_10GB/sometestfile-10GB.part01.rar
2023-12-12 12:35:32,953::INFO::[filesystem:706] Creating directories: /data/complete/test_download_10GB
2023-12-12 12:35:32,954::INFO::[misc:1152] [N/A] Running external command: ['/usr/sbin/unrar', 'x', '-vp', '-idp', '-scf', '-o+', '-ai', '-p-', '/data/incomplete/test_download_10GB/sometestfile-10GB.part01.rar', '/data/complete/_UNPACK_test_download_10GB/']
2023-12-12 12:35:32,954::INFO::[directunpacker:457] DirectUnpacked volume 1 for sometestfile-10GB
2023-12-12 12:35:35,274::INFO::[directunpacker:220] Error in DirectUnpack of sometestfile-10GB: 10GB.bin : packed data checksum error in volume /data/incomplete/test_download_10GB/sometestfile-10GB.part01.rar
2023-12-12 12:35:35,274::INFO::[directunpacker:463] Aborting DirectUnpack for sometestfile-10GB

[sander]

Is /data/incomplete a harddiskdrive (so: not SSD)?

I would test with SMARTmontools

sudo smartctl -s on /dev/sda

[stickman2000]

Thanks for the quick reply!

SSD... I currently have my downloads set to my Unraid cache drive SSD.

I mostly do not know what I am doing in terminal commands... I get this message when I attempt your test:

/dev/sda: Unknown USB bridge [0x0781:0x5571 (0x127)]
Please specify device type with the -d option.

[sander]

Unraid? Then my usual hash tag: #UnraidAlert

SSD? I don't know if SMART works on SSD. I checked my own SSD, and it looks like ... No.

I don't know much about Unraid.

[safihre]

So far we have seen that this is almost always a hardware issue.
Either corrupt memory, or corrupt sectors/parts of the drive.
The memory you can check with memtest, the drive is a bit harder to verify 100%.
The quickest check there is to test downloading to a different drive and see if that works without a problem.