Transfering 930GB to USB 2,5 days normal?

Sounds like quite a long time to me. Even the worst usb drives should be faster. One way to check would be to plug it into a computer and transfer some data to check the transfer rate of your drive.

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swehjo wrote:
2,5days for transferring 930MB directly to the USB-disk via the front contact seems a lot... Or is it as expected?

2.5 days for 930 MB is 4KB/second. That is approximately the speed of an Apple II floppy drive from 35 years ago... So no, it is not expected. Something is VERY wrong; the transfer should be around 1000 times faster.

You say that you are "transferring directly" to the USB disk. What does that mean, exactly? In other words, are you using SSH to access the NV+ Linux console and executing a "cp", or executing a Frontview backup job, or using the web interface, or using Windows Explorer to copy between two drive letters mapped from the NAS, or doing something else?

Are you transferring one large file, or many tiny files?

Ooops... Sorry, it's my regular backup of the ReadyNas I'm talking about. I haven't measured the performance reading from it via the network but I can play films, FLAC files etc and do my PC-backups to it without problem.

The backup time has always been awful but I haven't had the energy to be work with it. But now the NAS has started to act strange (briefly described in my newly opened thread http://www.readynas.com/forum/viewtopic.php?f=24&t=76077&p=423678#p423678) so I'm a bit stressed over this situation...

If your system is failing, then it is best to get your data off as quickly as possible, and avoid troubleshooting secondary problems.

I would attach your USB drive to a PC, and copy the data over the network. That is faster than USB.

Also, did you mean 930 MB or 930 GB? 930 GB will take multiple days over USB (and will take about a day over a gigabit network). 930 MB on the other hand should be a few minutes, not days.

Stressed. Meant 930GB. Not MB. Changed subject line. Sorry. Does this mean that the timing of the backup ReadyNAS to USB via the front port is at it should?

StephenB wrote:
did you mean 930 MB or 930 GB?

Ah. You've clearly been doing this longer than I have.

swehjo wrote:
Stressed. Meant 930GB. Not MB. Changed subject line. Sorry. Does this mean that the timing of the backup ReadyNAS to USB via the front port is at it should?

I don't own an NV+, but from what I've read here you're getting approximately the right speed. It could maybe be a little faster, but at least it's in the right ballpark.

Has it always been this slow, or is the slowdown a recent phenomenon?

fastfwd wrote:
Ah. You've clearly been doing this longer than I have.

Well, too much work and too many CDs converted to FLAC :)

And yes, it has always been like this. From the beginning it was worse. Did some tweaking 1-2 years ago and got a bit better times, equally what I have today, equally awfully slow...

"Right ballpark" :(.. OK, then I concentrate on saving the data I have on the NAS over the network instead of directly from the unit and then see if I can get it into a trustful condition again...

Thanks a lot everyone for quick response!

The network backup would take slightly more than a day using fast ethernet; or about 15 hours with gigabit. That's assuming about 10 MB/s over fast ethernet, and 18 MB/s over gigabit. (gigabit numbers are conservative).

If you have the space on a PC, you could start a new network backup in parallel with the USB one you have running - at this point its not clear which would finish first, as it depends on how big a head start the USB copy has.

If you are comfortable with windows command line, I recommend using robocopy (which should already on the PC). Teracopy is also a reasonable choice.

BTW, USB is slow on the NV+, there really isn't much you can do to speed it up.