Files missing after copying a folder to another HDD via new USB 3.0 card.

IggyStooge · 3 Feb 2018 at 12:43

Hello,

I just installed a new USB 3.0 PCIe expansion card and was keen to see the lightning fast speed but unfortunately it appears no faster than the USB 3.0 on my Mobo. At best it reaches about 120 MB/s.

External HDD's at least stay connected now which is something, but I just copied a 300+ GB folder containing game backups to an external HDD and it appears a significant number of files are missing. The original folder has 164,357 Files, 7,497 Folders and when copied it ends up with 145,075 Files, 7,333 folders.

Does anyone have an idea why this would happen and can it be fixed please?

Any help is much appreciated. Thanks.

ANDARIAL · 4 Feb 2018 at 12:02

AV software removing suspicious files maybe?

IggyStooge · 4 Feb 2018 at 12:29

I'm pretty sure that hasn't happened. There isn't anything in quarantine. I've not had this problem before so I can't help thinking it's related to the new USB 3.0 expansion card.

EsaT · 4 Feb 2018 at 13:13

This would be able to able to show what folders/files are missing:
https://www.ghacks.net/2014/07/10/verify-files-two-directories-checksum-compare/

IggyStooge · 4 Feb 2018 at 20:20

I've just compared them with Checksum Compare and there is loads of files missing and also a lot that are different it says.

I tried another large folder and there was a lot of files missing from that. I copied the same folder not using the USB 3.0 expansion card and everything copied fine.

Anyone not think the card is faulty?

AyeAyeAhoy! · 5 Feb 2018 at 07:25

did you do the transfer using Windows Explorer? Could you try again using specific transfer software?

zola25 · 5 Feb 2018 at 17:06

As above, something like the built in robocopy command is generally safer for large transfers and/or a large volume of files.

IggyStooge · 5 Feb 2018 at 18:28

I was using Explorer but I have tried earlier with Ultracopier which is supposed to be pretty good and I get the same result, lots of files missing.

Efour · 8 Feb 2018 at 06:42

I've experienced this whilst copying large numbers of MP3 files. Only way to avoid it was copying in batches.
I hope you kept the original stuff.

IggyStooge · 8 Feb 2018 at 10:52

I will be backing up large folders of MP3's at some stage. Was it using USB 3.0 you had the problem? I never had a issue using USB 2.0 that I can recall. I have the originals, you never know.

bledd · 8 Feb 2018 at 13:59

I'd check.. in this order.

USB3 drivers from internet
USB3 cable
New card
New enclosure

IggyStooge · 8 Feb 2018 at 14:48

The driver installed for the card is VIA USB 3.0 eXtensible Host Controller - 1.0 (Microsoft) which installed automatically. I have been unable to find another driver for Windows 10.

I'm using an IcyBox USB 3.0 to Sata Interface. I've had no issues when using it with USB 2.0 but it did disconnect sometimes using it with the USB 3.0 on my ageing mobo but I'd put that down to drivers.

How do I check the new card?

Not sure what you mean by new enclosure.

bledd · 10 Feb 2018 at 18:26

^Get a new USB3 cable
Get a new card
Get a new ICY BOX

GWANGY · 11 Feb 2018 at 13:11

have you tried TERACOPY .. it gives you a more comprehensive listing of what is going on with your copy and a summary at the end. I suspect that your problem lies in the sheer quantity of files or that there may be security issues. Most files get copied in alpha name order.
I wouldn't think the hardware was faulty as it would be more obvious. drivers maybe ? does the card support uASP which should speed up bulk transfers.
What OS are you using?
ALso your files may not be copied as they already exist on the target medium, As to the speeds via usb3, 120Mb/s sounds ok remember it depends on the speed of both the source and target, a hdd anywhere is going to slow things down..

IggyStooge · 14 Feb 2018 at 11:31

I sent the USB 3.0 expansion card back and am trying a different make/model. It's unlikely I'd get two faulty ones in a row.

I'm on Windows 10 64. The files are not already on the hdd. It is an old system, is uASP a modern feature?

If I can get 120 mb/s working properly then it'll be a good improvement.

I'll look at TERACOPY when the new card arrives.

bloodiedathame · 14 Feb 2018 at 11:36

Are the source and destination the same format (ExFat, NTFS etc)?

Use this: https://www.deltawalker.com/ to see what's missing.

IggyStooge · 26 Feb 2018 at 11:34

They're both NTFS. I have a different Expansion card now but still having problems. Might just send it back and not bother at all, it's getting very frustrating.

IggyStooge · 6 Mar 2018 at 14:46

It would appear the Ugreen USB 3.0 extension I was using is the cause of the problem. Without it I can connect to the on-board USB 3.0 and transfer everything 100% without problems.

Thanks to everyone who gave advice.

bledd · 6 Mar 2018 at 16:33

You should have mentioned that in the OP and saved yourself a month

IggyStooge · 6 Mar 2018 at 16:39

True. I didn't even think to try without the extension until a few days ago. Got a refund on the extension anyway.